CN114587399A - Imaging device and imaging method - Google Patents

Abstract

The present application discloses an imaging device and an imaging method. The imaging device includes: a ring support, a first detector, a first radiation source, a second detector, a second radiation source, a sliding module and a guide rail; the first detector and the first radiation source are arranged inside the ring support, the first detector and the first radiation source can rotate around the ring support; the second detector and the second radiation source are arranged on the end face of the ring support, the second detector and at least one of the second radiation source can rotate around the annular support; the side of the annular support is mounted on the sliding module, the sliding module is arranged on the guide rail, and the sliding module has a degree of freedom of movement along the direction of the guide rail. The technical solution provided in this application can perform multi-mode imaging and multi-part imaging of patients, which eases the flow of patients between different devices; through the movement of the annular stent, the patients can be checked before surgery, treated during surgery, and maintained after surgery. The position remains unchanged, thereby reducing the secondary injury to the patient.

Description

Imaging device and imaging method

technical field

The present application relates to the technical field of digital images, and more particularly, to an imaging device and an imaging method.

Background technique

Medical imaging refers to the technology and processing process of obtaining internal tissue images of the human body or a certain part of the human body in a non-invasive manner for diagnosis or treatment. In clinical practice, different equipment is often used for imaging diagnosis and treatment, and patients are transferred between different equipment during the operation, which increases the operation time and easily causes secondary injury to the patient.

In addition, the examination of different parts of the patient, such as the brain, chest, abdomen and limbs, uses different imaging equipment, which makes the medical imaging equipment in the hospital complex, which takes up a lot of space and the examination efficiency is low.

In view of this, there is an urgent need for an imaging device that supports a variety of medical imaging examinations and surgical treatments, and reduces the transfer time of patients before, during and after surgery. In addition, the imaging device integrates the inspection function of multiple parts of the patient, thereby alleviating the problems of the prior art.

SUMMARY OF THE INVENTION

According to an embodiment, a first aspect of the present application provides an imaging device, comprising: a ring support, a first detector, a first radiation source, a second detector, a second radiation source, a sliding module and a guide rail; a first The detector and the first radiation source are arranged inside the annular support, the first detector and the first radiation source can rotate around the annular support; the second detector and the second radiation source are arranged on the end face of the annular support, the second At least one of the detector and the second radiation source can rotate around the annular support; the side of the annular support is mounted on the sliding module, the sliding module is arranged on the guide rail, and the sliding module has a degree of freedom of movement along the guide rail direction.

In one embodiment, the annular support is mounted on the sliding module through a rotating shaft, and the annular support has a degree of freedom of movement to rotate around the sliding module.

In one embodiment, the first detector and the first radiation source are arranged on the first sliding rail, the second detector is arranged on the second sliding rail, and the second radiation source is arranged on the third sliding rail; The movements of the rail, the second rail and the third rail are independent of each other.

In one embodiment, the second radiation source has a freedom of movement to move in the radial direction of the annular support; and/or the second radiation source has a freedom of movement to rotate about the axial direction of the annular support.

In one embodiment, the imaging device further includes an operation table, the operation table is installed on a lifting module, the lifting module is arranged at one end of the guide rail, and the lifting module lifts and supports the operation table; a motor is arranged inside the lifting module, and the motor drives the lifting module to lift and/or or rotary console.

In one embodiment, the imaging device further includes a microwave detection module, the microwave detection module is disposed on the edge of the operating table, and the microwave detection module emits microwave signals to detect the distance between the operating table edge and the annular support.

According to an embodiment, a second aspect of the present application provides an imaging method, comprising: using the imaging device provided in the first aspect of the present application; positioning a human or an object in the center hole of the annular support; controlling the sliding module to move to the position of the guide rail a predetermined position; controlling the first detector to acquire an image, and/or controlling the second detector to acquire an image.

In one embodiment, the step of controlling the first detector to acquire the image includes: controlling the first detector and the first radiation source to rotate around the annular support, the first radiation source emits rays, and the first detector acquires the image.

In one embodiment, the step of controlling the second detector to acquire images includes: controlling at least one of the second detector and the second radiation source to rotate around the annular support, the second radiation source emits rays, and the second detector acquires image.

In one embodiment, before the second detector acquires the image, the method further includes: controlling the second radiation source to move to a predetermined position in the radial direction of the annular support, and/or controlling the second radiation source to rotate about the annular support axially to preset angle.

In one embodiment, the imaging method further includes: controlling the annular support to rotate around the sliding module to a preset angle.

In one embodiment, the step of positioning the object in the center hole of the ring support includes: controlling the operation table to lift and/or rotate to a predetermined position, so as to position the operation table and the human or object on it at the center of the ring support hole.

In one embodiment, the step of controlling the lifting and/or rotating of the operating table to a predetermined position further includes: stopping the lifting and/or rotation of the operating table according to the output of the microwave detection module.

The beneficial effects of the present application are: the imaging device provided has two different types of radiation sources and detectors, which can perform multimodal imaging and multi-part imaging of patients, thereby supporting preoperative examination, intraoperative treatment and postoperative prognosis, and alleviates the problem of The flow of patients between different equipment; through the movement of the ring stent, the patient can be kept in the same position in the preoperative examination, intraoperative treatment and postoperative prognosis, thereby reducing the secondary injury to the patient.

Description of drawings

In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the accompanying drawings that need to be used in the description of the specific embodiments or the prior art will be briefly introduced below. The drawings are some embodiments of the present application. For those of ordinary skill in the art, other drawings can also be obtained from these drawings without any creative effort.

FIG. 1 is a schematic diagram of an imaging device according to an embodiment of the present application;

2 is a schematic diagram of a first working state of an imaging device according to an embodiment of the present application;

3 is a schematic diagram of a second working state of an imaging device according to an embodiment of the present application;

4 is a schematic diagram of a side view of an imaging device in a second working state according to an embodiment of the present application;

FIG. 5 is a schematic flowchart of an imaging method according to an embodiment of the application.

Reference numerals: 1-ring bracket; 2-second detector; 3-second radiation source; 4-first slide rail; 5-slide module; 6-guide rail; 7-second slide rail; 8-th Three slide rails; 9-operating table; 10-lifting module.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the present application will be described clearly and completely below with reference to the accompanying drawings. The described embodiments are part of the embodiments of the present application, rather than all implementations. example.

FIG. 1 is a schematic diagram of an imaging device according to an embodiment of the present application.

Referring to FIG. 1 , an imaging device provided by an embodiment of the present application includes: a ring support 1 , a first detector (not shown in the figure), a first radiation source (not shown in the figure), and a second detector 2. The second radiation source 3 , the sliding module 5 and the guide rail 6 .

The first detector and the first radiation source are arranged inside the annular support 1 , and the first detector and the first radiation source can rotate around the annular support 1 . 1 , when the first detector and the first radiation source rotate around the annular support 1, the first radiation source emits X-rays, and after the X-rays pass through the human tissue or object to be imaged, they are transmitted by the first detector. The detector receives the raw data of CT (Computed Tomography, computed tomography). The first radiation source may be a tube of helical CT, and the first detector may be an arc-shaped detector embedded in the annular support 1 .

In an alternative embodiment, the first detector may be a photon counting detector. The first radiation source is a tube of energy spectrum CT, which can provide X-ray emission of different energies.

The second detector 2 and the second radiation source 3 are arranged on the end face of the annular support 1 , and at least one of the second detector 2 and the second radiation source 3 can rotate around the annular support 1 . Exemplarily, the second detector 2 may be a flat panel detector of cone beam CT, and the second radiation source 3 may be a radiation source of cone beam CT. When the center points of the second detector 2 and the second radiation source 3 are connected through the center of the annular support 1, they can achieve isocenter imaging. One of the second detector 2 and the second radiation source 3 rotates around the annular support 1 to realize non-isocentric imaging.

Referring to FIG. 1 , the side surface of the annular support 1 is mounted on the sliding module 5 , the sliding module 5 is arranged on the guide rail 6 , and the sliding module 5 has a degree of freedom of movement along the direction of the guide rail 6 . In an optional embodiment, when the sliding module 5 moves in the direction of the guide rail 6, the first detector and the first radiation source rotate around the annular support 1. During the rotation, the first radiation source emits X-rays, and the first radiation source emits X-rays. A detector receives the rays after passing through the object to be imaged, so that the scanning imaging of the helical CT can be realized.

In one embodiment, the annular support 1 is mounted on the sliding module 5 through a rotating shaft, and the annular support 1 has the freedom of movement to rotate around the sliding module 5 . As shown in FIG. 1 , the annular support 1 is rotated by the sliding module 5 so that the guide rail 6 is located in the tangential direction of the annular support 1 .

In one embodiment, referring to FIG. 1 , the first detector and the first radiation source are arranged on the first sliding rail 4 , the second detector 2 is arranged on the second sliding rail 7 , and the second radiation source 3 is arranged on the first sliding rail 7 . On the three slide rails 8; the movements of the first slide rail 4, the second slide rail 7 and the third slide rail 8 are independent of each other. For example, the first slide rail 4 is located inside the ring support 1, the trajectories of the second slide rail 7 and the third slide rail 8 are all circular rings on the end face of the ring support 1, the second slide rail 7 and the third slide rail 8 The radii of the circles where the tracks of the rails 8 are located are different, so that the movements of the first slide rail 4 , the second slide rail 7 and the third slide rail 8 can be independent of each other.

In one embodiment, the second radiation source 3 has the freedom of movement to move along the radial direction of the annular support 1 , so as to adjust the FOV (Field of View, field of view) of the second radiation source 3 .

In one embodiment, the second radiation source 3 has the freedom of movement to rotate around the annular support 1 in the axial direction, so as to adjust the FOV of the second radiation source 3 .

In one embodiment, the imaging device further includes an operation table 9 , which is installed on the lifting module 10 , the lifting module 10 is arranged at one end of the guide rail 6 , and the lifting module 10 lifts and supports the operation table 9 . By way of example, the operating table 9 can place a person or an object so that the first radiation source or the second radiation source 3 can image the person or the object.

In an optional embodiment, a motor is provided inside the lifting module 10 , and the motor drives the lifting module 10 to lift and/or rotate the operating table 9 . Referring to FIG. 1 , the height of the operating table 9 can be adjusted by the lifting and lowering of the lifting module 10 .

FIG. 2 is a schematic diagram of a first working state of an imaging device according to an embodiment of the present application.

In one embodiment, the central hole of the annular support 1 is sized to accommodate the passage of the operating table 9 and a human or object thereon. Exemplarily, referring to FIG. 2 , by lifting and/or rotating the operating table 9 through the lifting module 10 , the operating table 9 is adjusted to a position parallel to the guide rail 6 , and the operating table 9 can pass through the central hole of the annular support 1 . The ring support 1 slides on the guide rail 6 to the direction of the lifting module 10 through the sliding module 5. During the process of the operation table 9 passing through the central hole of the ring support 1, the first radiation source or the second radiation source 3 can emit X ray to acquire image signals on the first detector or the second detector 2 . It should be noted that, during the sliding process of the annular support 1 , the first detector, the first radiation source, the second detector 2 and the second radiation source 3 can rotate around the annular support 1 .

Exemplarily, in the embodiment of the first working state of the imaging device as shown in FIG. 2 , it may be a cone beam CT examination, intraoperative imaging or DRR (Digitally Reconstructured Radiograph) performed by the second detector 2 and the second radiation source 3 . , digital reconstructed radiological image) imaging; it can also be performed by the first detector and the first radiation source for inspection and intraoperative imaging, for example, it can be performed by spiral CT or energy spectrum CT imaging of human waist and abdomen.

FIG. 3 is a schematic diagram of a second working state of an imaging device according to an embodiment of the present application; FIG. 4 is a schematic diagram of a side view of an imaging device in a second working state according to an embodiment of the present application.

Referring to FIG. 3 and FIG. 4 , the annular support 1 is rotated 180 degrees around the sliding module 5 on the basis of FIG. 2 . Exemplarily, in the second working state of the imaging device shown in FIG. 3 and FIG. 4 , the first detector and the first radiation source may be used to perform spiral CT or energy spectrum CT imaging of the waist and abdomen of a human being.

In one embodiment, the imaging device further includes: a microwave detection module disposed on the edge of the operating table 9 , and the microwave detection module emits microwave signals to detect the distance between the edge of the operating table 9 and the annular support 1 . The microwave detection module measures the distance between the edge of the operating table 9 and the ring support 1 by receiving the reflected signal of the microwave signal on the ring support 1, so as to prevent the operating table 9 from being lifted and/or rotated improperly, causing the operating table 9 and the circular ring to be inappropriately positioned. Ring bracket 1 collided.

In one embodiment, the first working state of the imaging device may be used to perform pre-surgery inspection or diagnosis of the human being, and then the second working state of the imaging device may be used to perform real-time image guidance or treatment during the human surgery. The roles of the first working state and the second working state can also be interchanged, for example, the second working state is used for inspection or diagnosis before human surgery, and the first working state is used for real-time image guidance or treatment during human surgery. This avoids the need for patients to be transferred between different devices during the operation and reduces the preparation time for the operation. In addition, by switching between the first working state and the second working state, the imaging device can cover the examination or treatment of the patient's whole body. During this process, the patient does not need to be moved, thereby avoiding secondary injury to the patient.

In one embodiment, the imaging device performs spiral cone beam scanning imaging or fixed-position scanning imaging along the guide rail 6, and the first detector, the first radiation source, the second detector 2 and the second radiation source 3 can be respectively moved along the first slide. The rail 4, the second slide rail 7 and the third slide rail 8 move independently. Exemplarily, the first detector and the first radiation source perform isocentric imaging. The second detector 2 and the second radiation source 3 can perform both isocentric imaging and non-isocentric imaging.

Exemplarily, the imaging device rotates around the sliding module 5 through the annular support 1 to be in the first working state or the second working state. The operating table 9 is lifted and/or rotated to a preset position, and the operating table 9 and the patient on it remain stationary. Before the operation, the annular stent 1 performs spiral CT or energy spectrum CT examination by sliding along the guide rail 6; during the operation, the CT image in the first working state or the second working state is used to guide the treatment in real time; after the operation, it can also be CT image examination or prognostic treatment.

FIG. 5 is a schematic flowchart of an imaging method according to an embodiment of the application.

Referring to FIG. 5 , an imaging method provided in an embodiment of the present application uses the imaging device provided in the foregoing embodiment to perform imaging, including the following three steps.

Step S101: Position the human or the object in the central hole of the annular support. The human or object to be imaged is positioned in the central hole of the annular support, so that the rays emitted by the first radiation source and the second radiation source can pass through the human or object to be imaged.

Step S102: Control the sliding module to move to a predetermined position of the guide rail. Exemplarily, the inside of the sliding module may be driven by a motor to move, and the control of the motor may be realized by a controller or a computer through an industrial bus control.

Step S103: acquire an image. Specifically, the first detector is controlled to acquire images, and/or the second detector is controlled to acquire images.

In one embodiment, the step of controlling the first detector to acquire the image includes: controlling the first detector and the first radiation source to rotate around the annular support, the first radiation source emits rays, and the first detector acquires the image.

In one embodiment, the step of controlling the second detector to acquire images includes: controlling at least one of the second detector and the second radiation source to rotate around the annular support, the second radiation source emits rays, and the second detector acquires image.

In one embodiment, before the second detector acquires the image, the method further includes: controlling the second radiation source to move to a predetermined position in the radial direction of the annular support, and/or controlling the second radiation source to rotate about the annular support axially to A preset angle; thereby achieving the technical effect of adjusting the FOV of the second radiation source 3 .

In one embodiment, before imaging, the annular support can also be controlled to rotate around the sliding module to a preset angle, for example, to the first working state as shown in FIG. 2 or the second working state as shown in FIG. 3 . , so as to achieve the technical effect of multi-site examination or treatment of patients.

In one embodiment, the step of positioning the object in the center hole of the ring support includes: controlling the operation table to lift and/or rotate to a predetermined position, so as to position the operation table and the human or object on it at the center of the ring support hole.

In one embodiment, the step of controlling the lifting and/or rotating of the operating table to a predetermined position further includes: stopping the lifting and/or rotation of the operating table according to the output of the microwave detection module.

Some contents belonging to the well-known technical aspects in the art are not described in detail herein. It should be noted that, in this document, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any relationship between these entities or operations. any such actual relationship or sequence exists. Moreover, the terms "comprising", "comprising" or any other variation thereof are intended to encompass a non-exclusive inclusion such that a process, method, article or device that includes a list of elements includes not only those elements, but also includes not explicitly listed or other elements inherent to such a process, method, article or apparatus. Without further limitation, an element qualified by the phrase "comprising a..." does not preclude the presence of additional identical elements in a process, method, article or apparatus that includes the element.

Finally, it should be noted that: obviously, the above-mentioned embodiments are only examples for clearly illustrating the present application, and are not intended to limit the implementation manner. For those of ordinary skill in the art, changes or modifications in other different forms can also be made on the basis of the above description. There is no need and cannot be exhaustive of all implementations here. However, the obvious changes or changes derived from this are still within the protection scope of the present application.

Claims (13)

1. An imaging device, comprising: a ring support, a first detector, a first radiation source, a second detector, a second radiation source, a sliding module and a guide rail; The first detector and the first radiation source are arranged inside the annular support, and the first detector and the first radiation source can rotate around the annular support; The second detector and the second radiation source are arranged on the end face of the annular support, and at least one of the second detector and the second radiation source can rotate around the annular support; The side surface of the annular support is mounted on the sliding module, the sliding module is arranged on the guide rail, and the sliding module has a degree of freedom of movement along the direction of the guide rail. 2 . The imaging device according to claim 1 , wherein the annular support is mounted on the sliding module through a rotating shaft, and the annular support has a degree of freedom of movement to rotate around the sliding module. 3 . 3 . The imaging device according to claim 1 , wherein the first detector and the first radiation source are arranged on the first sliding rail, the second detector is arranged on the second sliding rail, and the first detector 3 . The two radiation sources are arranged on the third slide rail; the movements of the first slide rail, the second slide rail and the third slide rail are independent of each other. 4 . The imaging device according to claim 1 , wherein the second radiation source has a degree of freedom of movement to move radially along the annular support; and/or the second radiation source has an axis around the annular support. 5 . degrees of freedom of motion toward rotation. 5. The imaging device according to any one of claims 1 to 4, further comprising: An operation table, installed on a lifting module, the lifting module is arranged at one end of the guide rail, and the lifting module lifts and supports the operation table; a motor is arranged inside the lifting module, and the motor drives the lifting module to lift and/or rotate the operation table . 6. The imaging device of claim 5, further comprising: The microwave detection module is arranged on the edge of the operating table, and the microwave detection module transmits microwave signals to detect the distance between the edge of the operating table and the annular support. 7. An imaging method, characterized in that, comprising: using the imaging device of claim 1; positioning a human or object in the central hole of the annular support; controlling the sliding module to move to a predetermined position of the guide rail; controlling the first detector to acquire images, and/or The second detector is controlled to acquire images. 8. The imaging method according to claim 7, wherein the step of controlling the first detector to acquire an image comprises: The first detector and the first radiation source are controlled to rotate around the annular support, the first radiation source emits rays, and the first detector acquires images. 9. The imaging method according to claim 7, wherein the step of controlling the second detector to acquire an image comprises: At least one of the second detector and the second radiation source is controlled to rotate around the annular support, the second radiation source emits rays, and the second detector acquires images. 10. The imaging method according to claim 9, wherein before the second detector acquires an image, further comprising: controlling the second radiation source to move radially to a predetermined position along the annular support, and/or The second radiation source is controlled to axially rotate around the annular support to a preset angle. 11. The imaging method of claim 7, further comprising: The annular support is controlled to rotate around the sliding module to a preset angle. 12. The imaging method according to claim 7, wherein the step of positioning the object in the center hole of the annular support comprises: The operating table is controlled to lift and/or rotate to a predetermined position, so as to position the operating table and the human or objects on it in the central hole of the annular support. 13. The imaging method according to claim 12, wherein the step of controlling the operation table to lift and/or rotate to a predetermined position further comprises: According to the output of the microwave detection module, the lifting and/or rotation of the operating table is stopped.

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