CN116616815A - Shear wave based elastography system, method of use and processor - Google Patents

Abstract

The present invention relates to the field of ultrasound technology, in particular to a shear wave-based elastography system, usage method and processor. The shear wave elastography probe acquires the first current pressure based on the first pressure sensor, and when the first current pressure meets the first preset pressure requirement, transmits the first target ultrasonic signal to generate the target shear wave; the transient elastography probe is based on The second pressure sensor acquires the second current pressure, and when the second current pressure meets the second preset pressure requirement, the vibrator is used to apply low-frequency mechanical vibration to generate the target shear wave; the processor generates the target shear wave at the selected probe After wave cutting, control the selected probe to transmit a second target ultrasonic signal to the target tissue and receive the reflected echo signal; generate ultrasonic data according to the echo signal, and process the ultrasonic data to determine the detection result of the target tissue. The above shear wave-based elastography system is more convenient to use and improves detection efficiency.

Description

Shear wave based elastography system, method of use and processor

technical field

The present invention relates to the field of ultrasound technology, in particular to a shear wave-based elastography system, usage method and processor.

Background technique

With the rapid development of medical equipment, elastography came into being. Elastography quantitatively estimates and images the elastic modulus distribution of tissues. At present, elastography has become a research hotspot in medical ultrasound imaging, and is widely used in the detection and evaluation of breast, prostate, atherosclerotic plaque, myocardial dynamics, and lesion caused by high-intensity focused ultrasound and radiofrequency ablation.

Existing elastography systems generally only include one detection probe, and different elastography systems need to be used for different tissues. Therefore, the use of the elastography system is very limited and the detection efficiency is reduced.

Contents of the invention

In view of this, an embodiment of the present invention provides a shear wave-based elastography system, method of use, and processor, aiming to solve the problem that in the prior art, the use of the elastography system is relatively limited, which reduces the detection efficiency. and operational inconvenience.

According to the first aspect, an embodiment of the present invention provides a shear wave-based elastography system, which includes: a shear wave elastography probe, a transient elastography probe and a processor, and the shear wave Both the elastography probe and the transient elastography probe are connected to the processor in communication, the shear wave elastography probe includes a first pressure sensor, and the transient elastography probe includes a second pressure sensor and a vibrator, wherein:

The shear wave elastography probe is used to obtain a first current pressure applied to the target tissue based on the first pressure sensor, and allow the first current pressure to be adjusted under the control of the processor, and when the first current pressure meets the first When the preset pressure is required, the first target ultrasonic signal is transmitted to generate a target shear wave in the target tissue;

The transient elastography probe is used to obtain a second current pressure applied to the target tissue based on the second pressure sensor, and allow the second current pressure to be adjusted under the control of the processor, and when the second current pressure meets the second preset When the pressure is required, the vibrator is used to apply low-frequency mechanical vibrations on the outer surface of the target tissue to generate target shear waves in the target tissue;

The processor is used to select the shear wave elastography probe and the transient elastography probe according to the target tissue, and obtain the first current pressure and/or the second current pressure according to the selected probe, and control the shear wave elastography probe adjusting the first current pressure and/or controlling the transient elastography probe to the second current pressure;

The processor is also used to control the selected probe to transmit the second target ultrasonic signal to the target tissue and receive the reflected echo signal after the selected probe generates the corresponding target shear wave; generate ultrasonic data according to the echo signal, And the ultrasonic data is processed to determine the detection result of the target tissue.

The shear wave-based elastography system provided by the embodiment of the present invention includes: a shear wave elastography probe, a transient elastography probe, and a processor, and the shear wave elastography probe and the transient elastography probe are all communicated with the processor, The shear wave elastography probe includes a first pressure sensor, and the transient elastography probe includes a second pressure sensor and a vibrator, wherein: the shear wave elastography probe is used to obtain a first pressure sensor applied to the target tissue based on the first pressure sensor. current pressure, and allow the first current pressure to be adjusted under the control of the processor, and when the first current pressure meets the first preset pressure requirement, transmit the first target ultrasonic signal to generate target shear in the target tissue Wave, so as to avoid detection (for example, elastic detection) when the first current pressure applied to the target tissue is too large or too small. In addition, the transient elastography probe is used to obtain a second current pressure applied to the target tissue based on the second pressure sensor, and allow the second current pressure to be adjusted under the control of the processor, and when the second current pressure meets the second When the pressure requirement is preset, the vibrator is used to apply low-frequency mechanical vibrations on the outer surface of the target tissue to generate target shear waves in the target tissue, and also avoid excessive or excessive pressure applied to the target tissue by the transient elastography probe. Testing (eg, elasticity testing) is performed within hours. The processor is used to select the shear wave elastography probe and the transient elastography probe according to the target tissue, and obtain the first current pressure and/or the second current pressure according to the selected probe, and control the shear wave elastography probe Adjusting the first current pressure and/or controlling the transient elastography probe to adjust the second current pressure ensures the accuracy of the first current pressure applied by the shear wave elastography probe to the target tissue, and also ensures the accuracy of the transient elastography probe applied to the target tissue. Accuracy of the second current pressure in the target tissue. The processor is also used to control the selected probe to transmit the second target ultrasonic signal to the target tissue and receive the reflected echo signal after the target shear wave generated by the selected probe; generate ultrasonic data according to the echo signal, and The ultrasound data is processed to determine the detection result of the target tissue. The above-mentioned shear wave-based elastography system can select a suitable probe to detect the target tissue according to the target tissue, and then the system will perform detection only when the pressure applied by the selected detection probe meets the detection requirements, thereby ensuring a certain Accuracy and stability of test results for target tissue. Moreover, the above-mentioned shear wave-based elastography system is more convenient to use, which improves the convenience and detection efficiency of operators.

With reference to the first aspect, in the first embodiment of the first aspect, the processor is configured to obtain the detection range and detection depth corresponding to the target tissue; according to the detection range and detection depth corresponding to the target tissue, the shear wave elastography probe and Transient elastography probes are selected.

With reference to the first embodiment of the first aspect, in the second embodiment of the first aspect, when the detection range corresponding to the target tissue is smaller than the preset range threshold and the detection depth is smaller than the preset depth threshold, the processor determines to select shear wave elastography probe.

With reference to the first embodiment of the first aspect, in the third embodiment of the first aspect, when the detection range corresponding to the target tissue is greater than the preset range threshold and/or the detection depth is greater than the preset depth threshold, the processor determines to select the transient elastography probe.

With reference to the first embodiment of the first aspect, in the fourth embodiment of the first aspect, the target tissue includes a first detection area and a second detection area, and the processor is configured to: when the first detection area corresponding to the target tissue corresponds to the first detection area When the detection range is greater than the preset range threshold and/or the first detection depth is greater than the preset depth threshold, the processor determines to select the transient elastography probe; when the second detection range corresponding to the second detection region corresponding to the target tissue is smaller than the preset range threshold And when the second detection depth is less than the preset depth threshold, the processor determines to select the shear wave elastography probe.

With reference to the first aspect, in the fifth embodiment of the first aspect, the shear wave elastography probe further includes: an acoustic head, a transmission shaft, an elastic component, and a sensor bracket, wherein:

The acoustic head is used for contacting the target tissue, and when the first current pressure reaches the first preset pressure requirement, emits the first target ultrasonic signal;

a transmission shaft, installed under the acoustic head, for transmitting the first current pressure applied to the target tissue to the elastic member;

The elastic component is installed under the transmission shaft and is used to transmit the first current pressure to the first pressure sensor through deformation;

The first pressure sensor is installed under the elastic component and is used to detect the first current pressure;

The sensor bracket is installed under the first pressure sensor and is used to support the first pressure sensor.

With reference to the first aspect, in the sixth implementation manner of the first aspect, the shear wave-based elastography system further includes: a prompting component, which is communicatively connected to the processor;

The processor is further configured to acquire a first preset pressure range corresponding to the target tissue of the shear wave elastography probe and a second preset pressure range corresponding to the target tissue of the transient elastography probe; and combine the first current pressure with the first comparing the first maximum pressure and the first minimum pressure in the preset pressure range, and comparing the second current pressure with the second maximum pressure and the second minimum pressure in the second preset pressure range; when the first current pressure is greater than When the first maximum pressure or the second current pressure is greater than the second maximum pressure, the prompt component is controlled to output an overpressure reminder; when the first current pressure is less than the first minimum pressure or the second current pressure is less than the second minimum pressure, the control prompt is Components, the output pressure is too small to remind.

With reference to the first aspect, in the seventh implementation manner of the first aspect, the shear wave elastography probe further includes: a temperature sensor connected to the communication processor, wherein:

The temperature sensor is used to detect the temperature of the working environment of the shear wave elastography probe;

The processor is configured to judge whether temperature drift occurs according to the temperature of the working environment; and correct the first current pressure when it is judged that temperature drift occurs.

According to the second aspect, an embodiment of the present invention also provides a method for using a shear wave-based elastography system, which is applied to the shear wave-based elastography system in the first aspect or any implementation manner of the first aspect ,include:

According to the target tissue, select the shear wave elastography probe and the transient elastography probe;

According to the selected probe, the first current pressure applied by the shear wave elastography probe on the target tissue and/or the second current pressure applied by the transient elastography probe on the target tissue are acquired, and the first current pressure and/or the second current pressure are obtained. pressure adjustment;

After the selected probe generates the corresponding target shear wave, control the selected probe to transmit the second target ultrasonic signal to the target tissue and receive the reflected echo signal;

Generate ultrasonic data according to the echo signal; and process the ultrasonic data to determine the detection result of the target tissue.

The method for using the shear wave elastography system based on the embodiment of the present invention selects the shear wave elastography probe and the transient elastography probe according to the target tissue, ensuring that the selected shear wave elastography probe and transient elastography probe Probe accuracy. According to the selected probe, the first current pressure applied by the shear wave elastography probe on the target tissue and/or the second current pressure applied by the transient elastography probe on the target tissue are acquired, and the first current pressure and/or the second current pressure are obtained. The pressure is adjusted to ensure the accuracy of the applied first current pressure and/or the second current pressure. After the selected probe generates the target shear wave, control the selected probe to transmit the second target ultrasonic signal to the target tissue and receive the reflected echo signal; generate ultrasonic data according to the echo signal; and process the ultrasonic data to determine The detection result of the target tissue ensures the accuracy of the detection result of the determined target tissue.

According to the third aspect, an embodiment of the present invention also provides a processor, the processor is installed in the first aspect or the shear wave-based elastography system in any implementation manner of the first aspect, and the processor communicates with the shear wave-based elastography system. The memory in the shear wave elastography system is connected, and computer instructions are stored in the memory, and the processor executes the computer instructions to execute the method for using the shear wave-based elastography system according to the second aspect.

Description of drawings

In order to more clearly illustrate the specific implementation of the present invention or the technical solutions in the prior art, the following will briefly introduce the accompanying drawings that need to be used in the specific implementation or description of the prior art. Obviously, the accompanying drawings in the following description The drawings show some implementations of the present invention, and those skilled in the art can obtain other drawings based on these drawings without any creative effort.

Fig. 1 is a schematic structural diagram of a shear wave-based elastography system provided by an embodiment of the present invention;

Fig. 2 is a schematic structural diagram of a shear wave-based elastography system provided by an embodiment of the present invention;

Fig. 3 is a flowchart of a method for using a shear wave-based elastography system provided by an embodiment of the present invention;

Fig. 4 is a flow chart of the device for using the shear wave-based elastography system provided by the embodiment of the present invention;

FIG. 5 is a schematic diagram of a hardware structure of a processor provided by an embodiment of the present invention;

in:

1. Shear wave elastography probe;

11. The first pressure sensor;

2. Transient elastography probe;

21. The second pressure sensor;

22. Vibrator;

3. Processor;

4. Prompt component.

Detailed ways

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, or in a specific orientation. construction and operation, therefore, should not be construed as limiting the invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and should not be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; it can be mechanically or electrically connected; it can be directly connected, or indirectly connected through an intermediary, or it can be the internal communication of two components, which can be wireless or wired connect. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention in specific situations.

In the description of the present invention, it should be noted that the term "and/or" used in the description of this application and the appended claims refers to any combination of one or more of the associated listed items and all possible combinations up to and including these.

In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as there is no conflict with each other.

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts fall within the protection scope of the present invention.

In one embodiment of the present application, as shown in FIG. 1 , a shear wave-based elastography system is provided, which includes: a shear wave elastography probe 1, a transient elastography probe 2, and a processor 3. Both the shear wave elastography probe 1 and the transient elastography probe 2 are communicatively connected to the processor 3, the shear wave elastography probe 1 includes a first pressure sensor 11, and the transient elastography probe 2 includes a second pressure sensor 21 and a vibrator 22, in:

The shear wave elastography probe 1 is used to obtain the first current pressure applied to the target tissue based on the first pressure sensor 11, and allow the first current pressure to be adjusted under the control of the processor 3, and the first current pressure When the first preset pressure requirement is met, a first target ultrasonic signal is transmitted to generate a target shear wave in the target tissue.

Specifically, the target tissue may be breast, liver, thyroid and other tissues to be detected.

Specifically, the shear wave elastography probe 1 can measure the first current pressure it exerts on the target tissue based on the first pressure sensor 11 . When the first current pressure does not meet the first preset pressure requirement, the shear wave elastography probe 1 can adjust the first current pressure applied to the target tissue under the control of the processor 3, so that the first current pressure meets A first preset pressure requirement. When the first current pressure applied to the target tissue reaches the first preset pressure requirement, the ultrasonic transducer in the shear wave elastography probe 1 can be triggered to transmit the first target ultrasonic signal to the target tissue to generate target shear wave. When the first current pressure meets the first preset pressure requirement, no adjustment is required.

The transient elastography probe 2 is used to obtain the second current pressure applied to the target tissue based on the second pressure sensor 21, and allow the second current pressure to be adjusted under the control of the processor 3, and when the second current pressure meets the first 2. When the preset pressure is required, the vibrator 22 is used to apply low-frequency mechanical vibrations on the outer surface of the target tissue, so as to generate target shear waves in the target tissue.

Specifically, the transient elastography probe 2 can use the second pressure sensor 21 to measure the second current pressure applied to the target tissue. When the second current pressure does not meet the second preset pressure requirement, the transient elastography probe 2 can adjust the second current pressure applied to the target tissue under the control of the processor 3, so that the second current pressure meets the second preset pressure requirement. Preset pressure requirements. When the second current pressure applied on the target tissue reaches the second preset pressure requirement, the vibrator 22 in the transient elastography probe 2 can be triggered to apply low-frequency mechanical vibration on the outer surface of the target tissue to generate target shear in the target tissue Wave. Wherein, the low-frequency mechanical vibration may specifically be low-frequency instantaneous mechanical vibration. When the second current pressure meets the second preset pressure requirement, no adjustment is required.

Wherein, it should be noted that the first preset pressure requirement and the second preset pressure requirement may be a preset pressure range or a preset pressure value; the first preset pressure requirement and the second preset pressure requirement may be the same, It can also be different, and the embodiment of the present application does not specifically limit the first preset pressure requirement and the second preset pressure requirement.

The processor 3 is configured to select the shear wave elastography probe 1 and the transient elastography probe 2 according to the target tissue, and obtain the first current pressure and/or the second current pressure according to the selected probe, and control the shear wave The elastography probe adjusts to the first current pressure and/or the control transient elastography probe adjusts to the second current pressure.

Specifically, the processor 3 can identify the target tissue, for example, identify the characteristic parameters such as the depth and range of the target tissue, and then perform the shear wave elastography probe 1 and the transient elastography probe 2 according to the identified characteristic parameters. Make a selection. Further, the pressure currently exerted by the selected probe on the target tissue is obtained to obtain the current pressure. When the current pressure does not meet the corresponding preset pressure requirement, the probe is controlled to be lifted up or down to adjust the current pressure applied to the target tissue.

Optionally, the processor 3 may only select the shear wave elastography probe 1 to detect the target tissue, or select only the transient elastography probe 2 to detect the target tissue, or select both the shear wave elastography probe 1 and the The transient elastography probe 2 is selected to detect the target tissue. The embodiment of the present application does not specifically limit the selection of the shear wave elastography probe 1 and/or the transient elastography probe 2 by the processor 3 .

The processor 3 is also used to control the selected probe to transmit the second target ultrasonic signal to the target tissue and receive the reflected echo signal after the selected probe generates the target shear wave; generate ultrasonic data according to the echo signal, and The ultrasound data is processed to determine the detection result of the target tissue.

Specifically, after the selected probe emits the first target ultrasonic signal and/or applies low-frequency mechanical vibration on the outer surface of the target tissue, a corresponding shear wave is generated inside the target tissue, and the selected probe also emits the second target ultrasonic signal signal and receive the reflected echo signal, and the second target ultrasonic signal can track the propagation of the target shear wave, so the received echo signal contains not only the relevant information of the shear wave, but also the relevant information of the ultrasonic wave. The processor can obtain ultrasonic data including shear wave information and ultrasonic information according to the received echo signal. Then, the ultrasonic data is processed to obtain the detection result of the target tissue.

If the selected probe is shear wave elastography probe 1, when the first current pressure applied by the shear wave elastography probe to the target tissue satisfies the first preset pressure requirement, the shear wave elastography probe first passes the ultrasonic transducer The transducer transmits the first target ultrasonic signal to the target tissue to generate a shear wave in the target tissue; then transmits the second target ultrasonic signal to the target tissue through the ultrasonic transducer and receives the echo signal reflected by the second target ultrasonic signal.

If the selected probe is the transient elastography probe 2, when the second current pressure applied by the transient elastography probe to the target tissue meets the second preset pressure requirement, the transient elastography probe first applies a low-frequency vibrator to the outer surface of the target tissue Vibrating mechanically to generate shear waves in the target tissue, and then transmitting an ultrasonic signal (that is, the second target ultrasonic signal) to the target tissue through the ultrasonic transducer and receiving an echo signal reflected by the ultrasonic signal.

If the selected probes are shear wave elastography probe 1 and transient elastography probe 2 (that is, both shear wave elastography probe 1 and transient elastography probe 2 are selected), the two probes perform the above process respectively , and feed back the echo signals collected respectively to the processor. The processor processes the echo signals fed back by each probe to generate corresponding ultrasonic data.

In an optional embodiment of the present application, when the processor 3 selects the shear wave elastography probe 1 to detect the target tissue, the ultrasonic data generated by the processor may be the first ultrasound B-ultrasound image, the first color ultrasound At least one of an image, a first elastography image, and first radio frequency data corresponding to the first elastography. Then, the processor 3 processes the ultrasonic data on at least one of the first ultrasound B-ultrasound image, the first color ultrasound image, the first elastography image, and the first radio frequency data corresponding to the first elastography. The type of data is selected to obtain the detection results of the target organization.

In another optional embodiment of the present application, when the processor 3 selects the transient elastography probe 2 to detect the target tissue, the ultrasonic data generated by the processor may be the second ultrasound B-ultrasound image, the second color ultrasound image , at least one of the second elastography image and the second radio frequency data corresponding to the second elastography. Then, the processor 3 processes the ultrasonic data on at least one of the second ultrasound B-ultrasound image, the second color ultrasound image, the second elastography image, and the second radio frequency data corresponding to the second elastography. The processing method can be based on the ultrasound The type of data is selected to obtain the detection results of the target organization.

In another optional embodiment of the present application, when the processor 3 selects both the shear wave elastography probe 1 and the transient elastography probe 2 to detect the target tissue, the processor 3 may echo signals to generate corresponding ultrasound data. Wherein, the ultrasound data may be the first ultrasound B-ultrasound image corresponding to the second target ultrasound signal emitted by the shear wave elastography probe, the first color ultrasound image, the first elastography image, and the first radio frequency data corresponding to the first elastography at least one of; and the second ultrasonic B-ultrasound image corresponding to the second target ultrasonic signal emitted by the transient elastography probe 2, the second color Doppler ultrasound image, the second elastography image, and the second radio frequency data corresponding to the second elastography at least one. The processor 3 processes the ultrasound data to obtain the detection result of the target tissue.

Specifically, when the ultrasound data is B-ultrasound images and radio frequency data, the detection results may include parameters representing scattering, attenuation, and scattering sub-distribution characteristics, such as scale parameters, shape factor parameters, etc.; when the ultrasound data is color ultrasound images, the detection results The results can include parameters representing the shape of blood vessels, such as blood flow velocity, blood flow velocity gradient, degree of blood vessel tortuosity, etc.; when the ultrasound data is an elastography image, the detection results can include viscoelastic parameters representing the viscoelastic state, such as elastic modulus , viscosity parameters, etc.

The shear wave-based elastography system provided by the embodiment of the present invention can select a suitable probe to detect the target tissue according to the characteristics of the target tissue, is easy to use, and improves the convenience and detection efficiency of the operator. Moreover, the system will only detect when the pressure exerted by the selected detection probe meets the detection requirements, which ensures that even if the operation is performed by different operators, accurate and stable detection results can be obtained.

If the selected probe is a transient elastography probe, the target tissue is usually subjected to transient elastography; if the selected probe is a shear wave elastography probe, shear wave elastography is usually performed on the target tissue. Because the vibration of shear wave elastography is generated by the force of acoustic radiation, its penetration depth is limited, while the vibration of transient elastography is stronger, so the propagation depth of shear wave is deeper, so the corresponding probe can be selected according to the characteristics of the target tissue . For example, in the application of liver tissue elastography, the shear wave elastography probe can be selected for the measurement of superficial parts; for the presence of ascites and tumors, because the transient elastography is easily disturbed, the shear wave elastography can be selected Probe; for the case of uniform liver tissue and large region of interest, the transient elastography probe can be selected; for the case of tumor foreign bodies in the liver tissue and small region of interest, the shear wave elastography probe can be selected. This system can realize two different types of elastography, taking into account different detection requirements.

In an embodiment of the present application, the processor is further configured to analyze the detection result through a pre-established tissue assessment model, so as to determine the assessment result of the target tissue. The assessment result may be a health assessment result, such as a health grade assessment result, a health score assessment result, and so on. Of course, the evaluation results may also be other types of evaluation results, which are not specifically limited in this application.

When the detection results include parameters representing the characteristics of scattering, attenuation, and scattering sub-distribution, the evaluation results of benign and malignant tumors and the degree of fibrosis can be obtained by analyzing them through the tissue evaluation model; when the detection results include parameters representing the shape of blood vessels When it is analyzed by the tissue evaluation model, the evaluation results of benign and malignant tumors, tissue metabolism, etc. can be obtained; when the detection results include viscoelastic parameters representing the viscoelastic state, it can be analyzed by the tissue evaluation model, and the results can be obtained Evaluation results of tissue quantitative fatty liver degree, tissue quantitative fibrosis degree, etc.

In one embodiment of the present application, the processor 3 is configured to obtain the detection range and detection depth corresponding to the target tissue; according to the detection range and detection depth corresponding to the target tissue, the shear wave elastography probe 1 and the transient elastography probe 2 Make a selection.

Optionally, the processor 3 may receive the name of the target tissue input by the user, and then determine the detection range and detection depth corresponding to the target tissue according to the name of the target tissue; it may also receive the detection range and detection depth corresponding to the target tissue sent by the user or other devices. Detection depth. The embodiment of the present application does not specifically limit the manner in which the processor 3 obtains the detection range and detection depth corresponding to the target tissue.

After the processor 3 acquires the detection range and detection depth corresponding to the target tissue, it can identify the detection range and detection depth corresponding to the target tissue, and according to the identification result of the detection range and detection depth corresponding to the target tissue, cut Wave elastography probe 1 and transient elastography probe 2 are selected.

In the shear wave-based elastography system provided by the embodiment of the present invention, the processor 3 is used to obtain the detection range and detection depth corresponding to the target tissue, so as to ensure the accuracy of the determined detection range and detection depth corresponding to the target tissue. Then, according to the detection range and detection depth corresponding to the target tissue, the shear wave elastography probe 1 and the transient elastography probe 2 are selected to ensure the accuracy of the probe selection and thus the detection accuracy.

In an optional embodiment of the present application, when the detection range corresponding to the target tissue is smaller than the preset range threshold and the detection depth is smaller than the preset depth threshold, the processor 3 determines to select the shear wave elastography probe 1 .

Specifically, the processor 3 can compare the detection range corresponding to the target tissue with the preset range threshold, and compare the detection depth corresponding to the target tissue with the preset depth threshold. When the detection range corresponding to the target tissue is smaller than the preset range threshold And when the detection depth is less than the preset depth threshold, the processor 3 determines to select the shear wave elastography probe 1 .

In an optional embodiment of the present application, when the detection range corresponding to the target tissue is greater than a preset range threshold and/or the detection depth is greater than a preset depth threshold, the processor 3 determines to select the transient elastography probe 2 .

Specifically, the processor 3 may compare the detection range corresponding to the target tissue with a preset range threshold, and compare the detection depth corresponding to the target tissue with a preset depth threshold, for when the detection range corresponding to the target tissue is greater than the preset When the range threshold and/or the detection depth are greater than the preset depth threshold, the processor 3 determines to select the transient elastography probe 2 .

In the shear wave-based elastography system provided by the embodiment of the present invention, the processor 3 is configured to determine to select the shear wave when the detection range corresponding to the target tissue is less than the preset range threshold and the detection depth is less than the preset depth threshold. The wave elastography probe 1 ensures the accuracy of the shear wave elastography probe 1 selected by the processor 3 . Processor 3, configured to determine that the transient elastography probe 2 is selected when the detection range corresponding to the target tissue is greater than the preset range threshold and/or the detection depth is greater than the preset depth threshold, ensuring that the transient elastography probe 2 is selected accuracy.

In an optional embodiment of the present application, the target tissue includes a first detection area and a second detection area, and the processor 3 is configured to, when the first detection range corresponding to the first detection area is greater than a preset range threshold and/or When the first detection depth is greater than the preset depth threshold, the processor 3 determines to select the transient elastography probe 2; when the second detection range corresponding to the second detection area is smaller than the preset range threshold and the second detection depth is smaller than the preset depth threshold, The processor 3 determines to select the shear wave elastography probe 1 .

Specifically, when the target tissue includes a first detection area and a second detection area, the first detection area may be larger than the second detection area. The processor 3 may obtain a first detection range and a first detection depth corresponding to the first detection area, and a second detection range and a second detection depth corresponding to the second detection area. Then, the processor 3 compares the first detection range with the preset range threshold, compares the first detection depth with the preset depth threshold, and when the first detection range corresponding to the first detection area is greater than the preset range threshold and/or When the first detection depth is greater than the preset depth threshold, the processor 3 determines to select the transient elastography probe 2 . When the second detection range corresponding to the second detection area is smaller than the preset range threshold and the second detection depth is smaller than the preset depth threshold, the processor 3 determines to select the shear wave elastography probe 1 .

In the shear wave-based elastography system provided by the embodiment of the present invention, the target tissue includes a first detection area and a second detection area, and the processor 3 is configured to use when the first detection range corresponding to the first detection area is greater than a preset range threshold And/or when the first detection depth is greater than the preset depth threshold, the processor 3 determines to select the transient elastography probe 2, which ensures the accuracy of the selected transient elastography probe 2; when the second detection range corresponding to the second detection area is less than When the preset range threshold and the second detection depth are less than the preset depth threshold, the processor 3 determines to select the shear wave elastography probe 1, which ensures the accuracy of the selected shear wave elastography probe 1, thereby achieving Different detection areas of tissues can be detected by using different probes, which further ensures the accuracy of detection of target tissues.

In an optional embodiment of the present application, the shear wave elastography probe 1 further includes: an acoustic head, a transmission shaft, an elastic component, and a sensor bracket, wherein:

The acoustic head is used for contacting the target tissue, and when the first current pressure reaches the first preset pressure requirement, emits the first target ultrasonic signal.

The transmission shaft, installed under the acoustic head, is used to transmit the first current pressure applied to the target tissue to the elastic member.

The elastic component is installed under the transmission shaft and is used to transmit the first current pressure to the first pressure sensor through deformation.

Specifically, the elastic component may be a spring or a shrapnel, or other forms of elastic components, which are not specifically limited in this application.

The first pressure sensor is installed under the elastic component and is used to detect the first current pressure.

The sensor bracket is installed under the first pressure sensor and is used to support the first pressure sensor.

Specifically, the acoustic head is in contact with the detection area of the target tissue, and exerts pressure on the detection area of the target tissue by pressing, when the current pressure (that is, the first current pressure) applied to the target tissue reaches the first preset pressure When required, the ultrasonic transducers in the sound head can be triggered and then emit a first target ultrasonic signal. The sound head can also transmit the second target ultrasonic signal through the ultrasonic transducer and receive the echo signal reflected by the second target ultrasonic signal.

In addition, the first current pressure exerted by the acoustic head on the target tissue can be transmitted to the elastic member through the transmission shaft. The elastic member is deformed under the pressure of the transmission shaft, so as to transmit the first current pressure applied to the target tissue to the first pressure sensor. The first pressure sensor can measure a first current pressure applied to the target tissue. The sensor bracket is installed under the first pressure sensor and is used to support the first pressure sensor.

In the shear wave-based elastography system provided by the embodiment of the present invention, the shear wave elastography probe 1 includes: an acoustic head, a transmission shaft, an elastic component, a first pressure sensor, and a sensor bracket, wherein: the acoustic head is used for connecting with the target In tissue contact, when the first current pressure reaches the first preset pressure requirement, the first target ultrasonic signal is emitted, thereby ensuring that the first target ultrasonic signal is emitted when the first current pressure reaches the first preset pressure requirement. The transmission shaft is installed under the acoustic head, and is used to transmit the first current pressure applied to the target tissue to the elastic member, so as to ensure that the first current pressure applied to the target tissue can be transmitted to the first pressure sensor, and then the first current pressure applied to the target tissue can be transmitted to the first pressure sensor. A current pressure is measured. The elastic component is installed under the transmission shaft and is used to transmit the first current pressure to the first pressure sensor through deformation, so that the first pressure sensor can measure the first current pressure applied to the target tissue. The first pressure sensor is installed under the elastic component and is used to detect the first current pressure, so as to ensure the accuracy of the measured pressure value of the first current pressure. The sensor bracket is installed under the first pressure sensor and is used to support the first pressure sensor, so as to ensure the accuracy of the pressure value of the first current pressure measured by the first pressure sensor.

In an optional embodiment of the present application, as shown in FIG. 2 , the shear wave-based elastography system further includes: a prompting component 4, which is communicated with the processor 3;

The processor 3 is also used to obtain the first preset pressure range corresponding to the target tissue of the shear wave elastography probe 1 and the second preset pressure range corresponding to the target tissue of the transient elastography probe 2; and the first current pressure comparing with the first maximum pressure and the first minimum pressure in the first preset pressure range and comparing the second current pressure with the second maximum pressure and the second minimum pressure in the second preset pressure range; when the first When a current pressure is greater than the first maximum pressure or the second current pressure is greater than the second maximum pressure, the prompt component 4 is controlled to output an overpressure reminder; when the first current pressure is less than the first minimum pressure or the second current pressure is less than the second minimum pressure When the pressure is high, the prompt component 4 is controlled, and the output pressure is too small to remind.

Specifically, the processor 3 may receive the first preset pressure range of the shear wave elastography probe 1 corresponding to the target tissue and the second preset pressure range of the transient elastography probe 2 corresponding to the target tissue; it may also receive The first preset pressure range corresponding to the target tissue of the shear wave elastography probe 1 sent by other devices and the second preset pressure range corresponding to the target tissue of the transient elastography probe 2; the shear wave can also be queried in the storage space For the first preset pressure range corresponding to the target tissue of the elastography probe 1 and the second preset pressure range corresponding to the target tissue of the transient elastography probe 2, the embodiment of the present application acquires the shear wave elastography probe 1 for the The first preset pressure range corresponding to the target tissue and/or the manner in which the transient elastography probe 2 targets the second preset pressure range corresponding to the target tissue is not specifically limited.

Then, the processor 3 may compare the first current pressure with the first maximum pressure and the first minimum pressure in the first preset pressure range, and compare the second current pressure with the second maximum pressure in the second preset pressure range. Compared with the second minimum pressure, when the first current pressure is greater than the first maximum pressure or the second current pressure is greater than the second maximum pressure, the prompt component 4 is controlled to output an overpressure reminder.

When the first current pressure is lower than the first minimum pressure or the second current pressure is lower than the second minimum pressure, the prompting component 4 is controlled to output a low pressure warning.

The reminder component 4 is configured to output a reminder of excessive pressure or a reminder of too low pressure under the control of the processor 3 .

Optionally, the prompt component 4 can output a reminder of excessive pressure or a reminder of low pressure through voice prompts, text, etc. The embodiment of the present application does not specifically limit the manner in which the prompt component 4 outputs a reminder of excessive pressure or a reminder of too low pressure.

In the shear wave-based elastography system provided by the embodiment of the present invention, the processor 3 is also used to obtain the first preset pressure range corresponding to the target tissue of the shear wave elastography probe 1 and/or the instantaneous pressure range of the elastography probe 2 against the target tissue. The second preset pressure range corresponding to the target tissue ensures the accuracy of the acquired first preset pressure range and/or the second preset pressure range. comparing the first current pressure with a first maximum pressure and a first minimum pressure in a first preset pressure range and/or comparing the second current pressure with a second maximum pressure and a second minimum pressure in a second preset pressure range The pressure is compared to ensure the accuracy of the obtained comparison results. When the first current pressure is greater than the first maximum pressure and/or the second current pressure is greater than the second maximum pressure, the control prompt component 4 outputs an excessive pressure reminder, which ensures the accuracy of the output pressure excessive reminder; when the first When the current pressure is less than the first minimum pressure and/or the second current pressure is less than the second minimum pressure, the prompt component 4 is controlled to output a low pressure reminder, which ensures the accuracy of the output pressure too low reminder.

The reminder component 4 is configured to output a reminder of excessive pressure or a reminder of too low pressure under the control of the processor 3, so as to ensure that the user can obtain a reminder of too high pressure or a reminder of too low pressure.

In an optional implementation manner of the present application, the above-mentioned shear wave elastography probe further includes: a temperature sensor; the temperature sensor is connected to the processor in communication, wherein:

The temperature sensor is used to detect the temperature of the working environment of the shear wave elastography probe;

The processor is configured to judge whether a temperature drift occurs according to the temperature of the working environment, and correct the first current pressure if it is judged that the temperature drift occurs.

Specifically, the processor may determine whether a temperature drift occurs by determining whether the detected temperature of the working environment meets a preset temperature range of the working environment. If satisfied, no temperature drift occurs; if not satisfied, temperature drift occurs, and then the first current pressure is corrected.

The ultrasonic signal-based elastography system provided in the embodiment of the present application detects the temperature of the working environment by setting a temperature sensor, and then judges whether there will be a temperature drift that affects the first current pressure detection result based on the temperature. Next, the first current pressure is corrected to ensure the accuracy of the first current pressure detection.

In order to better illustrate the shear wave-based elastography system provided by the embodiment of the present application, the embodiment of the present application provides an overall flow of the method for using the shear wave-based elastography system, which is applied to any of the above-mentioned embodiments The shear wave-based elastography system, as shown in Figure 3, the method includes:

S51. Select a shear wave elastography probe and a transient elastography probe according to the target tissue.

S52. Acquire the first current pressure applied by the shear wave elastography probe on the target tissue and/or the second current pressure applied by the instantaneous elastography probe on the target tissue according to the selected probe, and control the shear wave elastography probe to the second current pressure on the target tissue. A current pressure and/or control transient elastography probe adjusts to a second current pressure.

S53. After the selected probe generates the target shear wave, control the selected probe to transmit the second target ultrasonic signal to the target tissue and receive the reflected echo signal.

Specifically, when the current pressure of the selected probe meets the corresponding preset pressure requirement, the selected probe is controlled to generate the target shear wave.

S54. Generate ultrasound data according to the echo signal, and process the ultrasound data to determine a detection result of the target tissue.

For the introduction of the method of using the shear wave-based elastography system, please refer to the above-mentioned introduction to the shear wave-based elastography system, which will not be repeated here.

The method for using the shear wave elastography system based on the embodiment of the present invention selects the shear wave elastography probe and the transient elastography probe according to the target tissue, ensuring that the selected shear wave elastography probe and transient elastography probe Probe accuracy. According to the selected probe, the first current pressure applied by the shear wave elastography probe on the target tissue and/or the second current pressure applied by the instantaneous elastography probe on the target tissue are obtained, and the first current pressure applied by the shear wave elastography probe to the first current pressure is controlled. The pressure and/or the control of the transient elastography probe adjusts the second current pressure to ensure the accuracy of the first current pressure and/or the second current pressure. After the selected probe generates the corresponding target shear wave, control the selected probe to transmit the second target ultrasonic signal to the target tissue and receive the reflected echo signal; generate ultrasonic data according to the echo signal, and process the ultrasonic data , determining the detection result of the target tissue, ensuring the accuracy of the detection result of the determined target tissue.

It should be understood that although the various steps in the flow chart of FIG. 3 are displayed sequentially as indicated by the arrows, these steps are not necessarily executed sequentially in the order indicated by the arrows. Unless otherwise specified herein, there is no strict order restriction on the execution of these steps, and these steps can be executed in other orders. Moreover, at least some of the steps in FIG. 3 may include multiple steps or stages. These steps or stages are not necessarily executed at the same time, but may be executed at different times. The execution sequence of these steps or stages is also It is not necessarily performed sequentially, but may be performed alternately or alternately with other steps or at least a part of steps or stages in other steps.

As shown in Figure 4, this embodiment provides a device for using a shear wave-based elastography system, including:

A selection module 61, configured to select the shear wave elastography probe and the transient elastography probe according to the target tissue;

The obtaining module 62 is configured to obtain the first current pressure applied by the shear wave elastography probe on the target tissue and/or the second current pressure applied by the instantaneous elastography probe to the target tissue according to the selected probe, and control the shear wave elastography adjusting the imaging probe to the first current pressure and/or controlling the transient elastography probe to adjust the second current pressure;

The control module 63 is configured to control the selected probe to transmit the second target ultrasonic signal to the target tissue and receive the reflected echo signal after the selected probe generates the target shear wave;

The processing module 64 is configured to generate ultrasound data according to the echo signal, and process the ultrasound data to determine the detection result of the target tissue.

For the specific limitations and beneficial effects of the device for using the shear wave-based elastography system, please refer to the above-mentioned limitations on the method for using the shear wave-based elastography system, which will not be repeated here. Each module in the above-mentioned device for using the shear wave-based elastography system can be fully or partially realized by software, hardware and a combination thereof. The above-mentioned modules can be embedded in the processor in the form of hardware or independent of the processor, and can also be stored in the memory of the processor in the form of software, so that the processor can call and execute the corresponding operations of the above-mentioned modules.

An embodiment of the present invention also provides a processor, which has the device for using the shear wave-based elastography system shown in FIG. 4 above.

As shown in FIG. 5, FIG. 5 is a schematic structural diagram of a processor provided in an optional embodiment of the present invention. As shown in FIG. 5, the processor may include: at least one processor 71, such as a CPU (Central Processing Unit, central processing unit), at least one communication interface 73, memory 74, and at least one communication bus 72. Wherein, the communication bus 72 is used to realize connection and communication between these components. Wherein, the communication interface 73 may include a display screen (Display) and a keyboard (Keyboard), and the optional communication interface 73 may also include a standard wired interface and a wireless interface. The memory 74 may be a high-speed RAM memory (Random Access Memory, volatile random access memory), or a non-volatile memory (non-volatile memory), such as at least one magnetic disk memory. Optionally, the memory 74 may also be at least one storage device located away from the aforementioned processor 71 . Wherein the processor 71 may be combined with the device described in FIG. 4 , the memory 74 stores an application program, and the processor 71 invokes the program code stored in the memory 74 to execute any of the above method steps.

Wherein, the communication bus 72 may be a peripheral component interconnect (PCI for short) bus or an extended industry standard architecture (EISA for short) bus or the like. The communication bus 72 can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is used in FIG. 5 , but it does not mean that there is only one bus or one type of bus.

Wherein, the memory 74 may include a volatile memory (English: volatile memory), such as a random-access memory (English: random-access memory, abbreviated: RAM); the memory may also include a non-volatile memory (English: non-volatile memory), such as flash memory (English: flash memory), hard disk (English: hard diskdrive, abbreviated: HDD) or solid-state hard disk (English: solid-state drive, abbreviated: SSD); memory 74 can also include the above-mentioned types of memory The combination.

Wherein, the processor 71 may be a central processing unit (English: central processing unit, abbreviated: CPU), a network processor (English: network processor, abbreviated: NP) or a combination of CPU and NP.

Wherein, the processor 71 may further include a hardware chip. The aforementioned hardware chip may be an application-specific integrated circuit (English: application-specific integrated circuit, abbreviation: ASIC), a programmable logic device (English: programmable logic device, abbreviation: PLD) or a combination thereof. The above-mentioned PLD can be a complex programmable logic device (English: complex programmable logic device, abbreviated: CPLD), field-programmable logic gate array (English: field-programmable gate array, abbreviated: FPGA), general array logic (English: generic array logic , Abbreviation: GAL) or any combination thereof.

Optionally, memory 74 is also used to store program instructions. The processor 71 can invoke program instructions to implement the method for using the shear wave-based elastography system as shown in the embodiment shown in FIG. 3 of the present application.

The embodiment of the present invention also provides a non-transitory computer storage medium, the computer storage medium stores computer-executable instructions, and the computer-executable instructions can execute the method for using the shear wave-based elastography system in any of the above-mentioned method embodiments . Wherein, the storage medium may be a magnetic disk, an optical disk, a read-only memory (Read-Only Memory, ROM), a random access memory (Random Access Memory, RAM), a flash memory (Flash Memory), a hard disk (Hard Disk Drive) , abbreviation: HDD) or a solid-state drive (Solid-State Drive, SSD), etc.; the storage medium may also include a combination of the above-mentioned types of memories.

Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention. within the bounds of the requirements.

Claims (10)

1. A shear wave based elastography system, characterized in that the shear wave based elastography system comprises: shear wave elastography probe, instantaneous elastography probe and treater, shear wave elastography probe with instantaneous elastography probe all with treater communication connection, shear wave elastography probe includes first pressure sensor, instantaneous elastography probe includes second pressure sensor and vibrator, wherein:

The shear wave elastography probe is used for acquiring a first current pressure applied to target tissue based on the first pressure sensor, allowing the first current pressure to be adjusted under the control of the processor, and transmitting a first target ultrasonic signal when the first current pressure meets a first preset pressure requirement so as to generate a target shear wave in the target tissue;

the instantaneous elastic imaging probe is used for acquiring a second current pressure applied to target tissue based on the second pressure sensor, allowing the second current pressure to be adjusted under the control of the processor, and applying low-frequency mechanical vibration to the outer surface of the target tissue by using the vibrator when the second current pressure meets a second preset pressure requirement so as to generate target shear waves in the target tissue;

the processor is used for selecting the shear wave elastography probe and the instantaneous elastography probe according to the target tissue, acquiring the first current pressure and/or the second current pressure according to the selected probe, and controlling the shear wave elastography probe to adjust the first current pressure and/or the instantaneous elastography probe to adjust the second current pressure;

The processor is further configured to control the selected probe to transmit a second target ultrasonic signal to the target tissue and receive the reflected echo signal after the selected probe generates a target shear wave; and generating ultrasonic data according to the echo signals, processing the ultrasonic data, and determining the detection result of the target tissue.

2. The shear wave based elastography system of claim 1, wherein the processor is configured to obtain a detection range and a detection depth corresponding to the target tissue; and selecting the shear wave elastography probe and the instantaneous elastography probe according to the detection range and the detection depth corresponding to the target tissue.

3. The shear wave based elastography system of claim 2, wherein the processor determines to select the shear wave elastography probe when the detection range corresponding to the target tissue is less than a preset range threshold and the detection depth is less than a preset depth threshold.

4. The shear wave based elastography system of claim 2, wherein the processor determines to select the transient elastography probe when the detection range corresponding to the target tissue is greater than a preset range threshold and/or the detection depth is greater than a preset depth threshold.

5. The shear wave based elastography system of claim 2, wherein the target tissue comprises a first detection area and a second detection area, the processor being configured to determine to select the transient elastography probe when a first detection range corresponding to the first detection area is greater than a preset range threshold and/or a first detection depth is greater than a preset depth threshold; and when the second detection range corresponding to the second detection area is smaller than a preset range threshold value and the second detection depth is smaller than a preset depth threshold value, the processor determines to select the shear wave elastography probe.

6. The shear wave based elastography system of claim 1, wherein the shear wave elastography probe further comprises: sound head, transmission shaft, elastomeric element and sensor support, wherein:

the sound head is used for contacting with the target tissue, and transmitting the first target ultrasonic signal when the first current pressure reaches the first preset pressure requirement;

the transmission shaft is arranged below the sound head and is used for transmitting the first current pressure applied to the target tissue to the elastic component;

The elastic component is arranged below the transmission shaft and is used for transmitting the first current pressure to the first pressure sensor in a deformation mode;

the first pressure sensor is arranged below the elastic component and is used for detecting the first current pressure;

the sensor bracket is arranged below the first pressure sensor and is used for supporting the first pressure sensor.

7. The shear wave based elastography system of claim 1, further comprising: the prompting component is in communication connection with the processor;

the processor is further configured to obtain a first preset pressure range corresponding to the shear wave elastography probe for the target tissue and a second preset pressure range corresponding to the transient elastography probe for the target tissue; comparing the first current pressure with a first maximum pressure and a first minimum pressure in the first preset pressure range, and comparing the second current pressure with a second maximum pressure and a second minimum pressure in the second preset pressure range; when the first current pressure is larger than the first maximum pressure or the second current pressure is larger than the second maximum pressure, controlling the prompting component and outputting a pressure overload prompt; and when the first current pressure is smaller than the first minimum pressure or the second current pressure is smaller than the second minimum pressure, controlling the prompting component and outputting a warning of the too-small pressure.

8. The shear wave based elastography system of claim 1, wherein the shear wave elastography probe further comprises: a temperature sensor coupled to the processor, wherein:

the temperature sensor is used for detecting the temperature of the working environment of the shear wave elastography probe;

the processor is used for judging whether temperature drift occurs according to the temperature of the working environment; and correcting the first current pressure under the condition that the temperature drift is judged to occur.

9. A method of using a shear wave based elastography system as defined in any of claims 1-8, comprising:

selecting a shear wave elastography probe and an instantaneous elastography probe according to the target tissue;

according to the selected probe, a first current pressure applied by the shear wave elastography probe to the target tissue and/or a second current pressure applied by the instantaneous elastography probe to the target tissue are obtained, and the shear wave elastography probe is controlled to regulate the first current pressure and/or the instantaneous elastography probe is controlled to regulate the second current pressure;

After the selected probe generates a target shear wave, controlling the selected probe to transmit a second target ultrasonic signal to the target tissue and receive a reflected echo signal;

and generating ultrasonic data according to the echo signals, processing the ultrasonic data, and determining the detection result of the target tissue.

10. A processor, wherein the processor is mounted to the shear wave based elastography system of any of claims 1-8, the processor being coupled to a memory in the shear wave based elastography system, the memory having stored therein computer instructions, the processor executing the computer instructions to perform the method of using the shear wave based elastography system of claim 9.