CN2868194Y - X-rayimage mammary gland symptom auto-identifying device - Google Patents

Abstract

The utility model relates to an automatic identification device for mammary gland disease characteristics of X-ray images, which is composed of a liquid crystal display screen, a casing and a panel, a connecting cable, a power switch, function keys and a circuit board, and the power switch, liquid crystal display, function keys and The circuit board is electrically connected; one end of the connecting cable is electrically connected to the circuit board, and the other end is electrically connected to the X-ray machine or CT layer scanner through the reserved hole on the side of the casing. The utility model improves the efficiency and accuracy of differential diagnosis of breast diseases by automatically analyzing and identifying the X-ray images of breast diseases acquired in real time.

Description

Device for automatic recognition of mammary gland disease features in X-ray images

technical field

The utility model relates to an automatic identification device for mammary gland disease features of X-ray images.

Background technique

The incidence of breast diseases including breast cancer has been on the rise in recent decades, and Western countries have required women to have regular mammograms. Mammography is one of the most commonly used means of breast examination. Mammograms mainly show tiny calcifications in lesions. The image features of calcifications are an important basis for the analysis and diagnosis of breast diseases. Calcification can be seen in 41% to 48% of breast cancers, and the incidence of calcification in ductal carcinoma is as high as 90%. Benign lesions such as sclerosing breast disease, breast dysplasia, hamartoma, radiation scar, fibrocystic disease, fibroadenoma, etc. Calcifications may also be seen.

The cause of mammary calcification is still unclear, but it is generally believed to be related to the calcium salt deposition after tumor cell degeneration and necrosis, and the secretion of tumor cells and mammary gland cells. The shape, size, quantity, density, distribution range, average density and other characteristics of calcification are conducive to the identification of lesions. Calcification morphology is the focus of differential diagnosis. The BIRADS (Breast Imaging Reporting and Data System) classification standard recommended by the American College of Radiology is the main classification method for calcification morphology. BIRADS divides lesions into 5 grades, which are negative manifestations, benign lesions, and possibly benign lesions. , Suspected of malignancy, Highly suspected of malignancy. Specifically, skin calcifications, vascular calcifications, popcorn-like calcifications, eggshell-like calcifications, ring-shaped calcifications, and central clear calcifications are classified as benign calcifications or possible benign calcifications; amorphous and vague calcifications are classified as suspicious calcifications; pleomorphic calcifications, Linear, branching, and cast calcifications are highly suggestive of malignancy.

At present, the identification and analysis of X-ray images of breast diseases is done by film readers. The resolution of the human eye to black and white gray scales does not exceed 20 levels at most. The limited resolution and operational fatigue of film readers will reduce the detection rate of lesions, and the accuracy of analysis of subtle signs of malignant lesions is low. Manual reading, recognition and analysis of X-ray images of breast diseases has low efficiency, poor accuracy, and large randomness.

Utility model content

The purpose of the utility model is to provide an automatic identification device for breast disease features of X-ray images, which can automatically analyze and identify the X-ray images of breast diseases acquired in real time, and improve the accuracy and efficiency of breast disease diagnosis.

The automatic identification device for mammary gland disease features of X-ray images of the utility model is composed of a liquid crystal display screen, a casing and a panel, a connecting cable, a power switch, function keys, and a circuit board. The power switch, liquid crystal display, and function keys are electrically connected to the circuit board; one end of the connecting cable is electrically connected to the circuit board, and the other end is electrically connected to the X-ray machine or CT layer scanner through the reserved hole on the side of the casing.

The circuit board is composed of A/D conversion circuit, digital signal processor (DSP), synchronous random access memory (SRAM), programmable read-only memory (EPROM), address decoder, chip select controller, serial interface circuit, liquid crystal display output circuit. in:

A/D conversion circuit is electrically connected with X-ray machine or CT scanner, digital signal processor (DSP); digital signal processor (DSP) and synchronous random access memory (SRAM), programmable read-only memory (EPROM) , address decoder, chip select controller electrical connection; address decoder, chip select controller and synchronous random access memory (SRAM), programmable read-only memory (EPROM) electrical connection; serial interface circuit and liquid crystal display Output circuit, digital signal processor (DSP) electrical connection.

The A/D conversion circuit is composed of an A/D conversion chip, a decoupling ground circuit, a voltage divider circuit, a level shifter, and a buffer electrical connection; a digital signal processor (DSP) is a core processing chip for processing images ; Described synchronous random access memory (SRAM) is the device that stores digital signal processor (DSP) running program, data, is made of four slices of synchronous random access memory (SRAM) electrical connections; Programmable read-only memory (EPROM) is storage program and The device for initializing the program; the address decoder is a device for address decoding; the chip selection controller is a two-to-one selector equivalent to a data acquisition switch, and a device for controlling data acquisition and input; the liquid crystal display output circuit is composed of a liquid crystal The dot matrix display and the output signal line are electrically connected.

The circuit board is fixedly installed in the casing, and the liquid crystal display screen, power switch and function keys are installed on the panel.

The function keys include pause, track and image selection function keys.

The using method of the utility model device comprises the following steps:

The first step is to analyze and calculate the reference image of the international standard for breast detection, perform feature extraction and store it in the programmable read-only memory;

The second step is to collect the analog signal of breast disease on the spot and input it to the A/D converter for conversion, and perform real-time breast image feature extraction;

The third step is to pattern-match the features of the real-time breast image with the features of the standard breast image to identify the calcification form of the patient and the grade of the disease;

The fourth step is to display the calcification form and disease grade of the measured disease on the monitoring screen.

Compared with the prior art, the utility model has the following advantages: it can automatically analyze and identify real-time mammary gland disease X-ray images, and overcomes the shortcomings of easy fatigue, poor accuracy, large randomness, low efficiency and unreliability of manual reading of film readers, It can improve the accuracy, reliability and efficiency of breast disease diagnosis. The utility model has the advantages of low cost, fast image processing speed, strong confidentiality and high precision.

Description of drawings

Fig. 1 is a schematic diagram of the appearance and structure of the automatic recognition device for mammary gland disease characteristics of X-ray images of the present invention.

Fig. 2 is a circuit block diagram of the automatic recognition device for mammary gland disease characteristics of X-ray images of the present invention.

Fig. 3 is the circuit diagram of the mammary gland disease feature automatic identification device of X-ray image of the present utility model,

In the figure: IC1 is A/D conversion chip, IC2 is digital signal processor (DSP), IC3 is level shifter, IC4 is buffer device, IC5 is chip select controller, IC6 is address decoder, IC7 is programmable Programming read-only memory (EPROM), IC8, IC9, IC10, and IC11 are synchronous random access memory (SRAM), J1 is a liquid crystal dot matrix display, C1 is a capacitor, and R1, R2, R3, and R4 are resistors.

Fig. 4 is a block diagram of an analysis algorithm flow chart of the automatic identification device for breast disease features of X-ray images of the present invention.

Detailed ways

Fig. 1 is a schematic diagram of the appearance and structure of the automatic recognition device for mammary gland disease characteristics of X-ray images of the present invention. It can be seen from Figure 1 that the device is composed of a liquid crystal display 1, a casing and a panel 2, a connecting cable 3, a power switch 4, function keys 5, 6, 7 and a circuit board, wherein the liquid crystal display 1, the power switch 4, the function keys 5, 6, 7 are electrically connected to the circuit board; one end of the connecting cable 3 is electrically connected to the circuit board, and the other end is electrically connected to the X-ray machine or CT layer scanner through the reserved hole on the side of the casing.

Fig. 2 is a circuit block diagram of the automatic recognition device for mammary gland disease characteristics of X-ray images of the present invention. It can be seen from Figure 2 that the circuit board consists of A/D conversion circuit, digital signal processor (DSP), synchronous random access memory (SRAM), programmable read-only memory (EPROM), address decoder, chip select controller, Composed of serial interface circuit and liquid crystal display output circuit, A/D conversion circuit is electrically connected with X-ray machine or CT scanner, digital signal processor (DSP); digital signal processor (DSP) and synchronous random access memory (SRAM), programmable read-only memory (EPROM), address decoder, chip select controller electrical connection; address decoder, chip select controller and synchronous random access memory (SRAM), programmable read-only memory ( EPROM) electrical connection; the serial interface circuit is electrically connected with the liquid crystal display output circuit and the digital signal processor (DSP).

Fig. 3 is the circuit diagram of the mammary gland disease feature automatic identification device of X-ray image of the present utility model, as shown in Fig. 3, by A/D conversion chip IC1, electric capacity C1, resistance R1, R1, R2, R3, R4, digital signal Processor (DSP) IC2, level shifter IC3, buffer device IC4, chip select controller IC5, address decoder IC6, programmable read-only memory (EPROM) IC7, synchronous random access memory (SRAM) IC8, IC9 , IC10, IC11, liquid crystal dot matrix display J1 composition. Among them, C1 and IC1 are connected in series, one end of R2 is grounded, and the other end is connected to C1 and IC1; after R2, R3, and R4 are connected in series, one end is grounded, and the other end is electrically connected to IC1; IC1, IC3, IC4 are connected in series, and are electrically connected to IC2; IC5 It is electrically connected to IC2 and IC4; IC8, IC9, IC10, IC11 are electrically connected, and are electrically connected to IC2, IC6; IC7 is electrically connected to IC2, IC6; J1 is electrically connected to IC2, and is connected to the output circuit through the output signal line. Among them, IC1 chooses TLC5510 chip of TI Company, and the conversion accuracy is 8 bits; IC2 chooses the floating-point DSP chip TMS320C31 produced by Texas Instruments, the instruction cycle is 33ns, and the working frequency is 40MHz; IC3 chooses 74HC25, the sampling frequency is 8MHz, CMOS Level parallel output; IC4 uses 74603 type; IC5 uses 74157 type; IC6 uses SN74C138 type; IC7 uses TMS27C512 type, the storage space is 32K×8; IC8, 9, 10, 11 use 18S18×350 chips, and the storage space is 128K× 8; J1 selects the sed1330 product of Seiko Epson Company of Japan.

Fig. 4 is the block diagram of the real-time recognition and analysis program flow chart of the breast disease feature automatic recognition device of X-ray images of the present invention; Brightness and area size, fractal calculation and analysis of specific areas, preliminary analysis of 3 major types of diseases, and then use the method based on the spatial contrast value analysis method and the rule-based data mining analysis method to make the final classification of the disease to determine the type of disease.

Claims (3)

1. An automatic identification device for mammary gland disease features of X-ray images, characterized in that a power switch, a liquid crystal display, and function keys are electrically connected to a circuit board; one end of the connecting cable is electrically connected to the circuit board, and the other end passes through a pre-set on the side of the casing. The hole is electrically connected to the X-ray machine or CT scanner; The circuit board is composed of A/D conversion circuit, digital signal processor DSP, synchronous random access memory SRAM, programmable read-only memory EPROM, address decoder, chip selection controller, serial interface circuit, liquid crystal display output circuit composition; of which A/D conversion circuit is electrically connected with optical machine or CT level scanner, digital signal processor DSP; digital signal processor DSP is connected with synchronous random access memory SRAM, programmable read-only memory EPROM, address decoder, chip selection control The address decoder, the chip select controller are electrically connected with the synchronous random access memory SRAM and the programmable read-only memory ERPOM; the serial interface circuit is electrically connected with the liquid crystal display output circuit and the digital signal processor DSP. 2. The device according to claim 1, wherein the circuit board is fixedly installed in the casing, and the liquid crystal display, power switch and function keys are installed on the panel. 3. The device according to claim 1, wherein the function keys include a pause function key, a tracking function key, and an image selection function key.

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