CN104517015A - Mini device for preventing cerebrovascular disease through computer-aided diagnosis for ultrasonic image - Google Patents

Abstract

The invention belongs to the technical field of medical ultrasonic image processing and the technical field of computer aided detection software. The invention provides a small device for preventing cerebrovascular diseases through computer-aided diagnosis of ultrasonic images. The device is divided into a hardware part and a software part. The hardware part is connected to an ultrasonic converter through an ultrasonic probe, and then connected to a mobile phone; The software part is through computer-aided diagnosis software for ultrasonic images. The invention makes ultrasonic equipment and computer-aided diagnosis equipment more widely used, and it is more convenient for community hospitals and even family doctors to do regular checkups for patients.

Description

A small device for the prevention of cerebrovascular diseases through computer-aided diagnosis of ultrasound images

technical field

The invention belongs to the technical field of medical ultrasonic image processing and computer-aided detection software, and specifically relates to a small device for preventing cerebrovascular diseases through computer-aided diagnosis of ultrasonic images. the

Background technique

Ultrasonic equipment has been widely used in medical examination since its invention. However, its volume is quite large. Usually, the hospital will set up a special ultrasound department. All kinds of patients who need ultrasound examinations need to go to specific locations for examinations, while community hospitals and even family doctors want to do regular examinations for patients (usually with a large amount of examinations and scattered locations), there will be great inconvenience. In recent years, although ultrasonic equipment has a trend of miniaturization, people cannot meet people's requirements. The invention provides a small ultrasonic converter, through which the ultrasonic probe is connected and converted, the converter is connected to a mobile phone, and the ultrasonic device is made into a "stethoscope" form, which is convenient for doctors to carry. the

Computer-aided diagnosis refers to the use of imaging, medical image processing technology and other possible physiological and biochemical means, combined with computer analysis and calculation, to assist radiologists in finding lesions and improving the accuracy of diagnosis. Calculation and auxiliary diagnosis are widely used in medical imaging equipment such as DR, CT, MRI and PET. However, since the shooting of ultrasonic images largely depends on the experience and level of ultrasonic doctors, there is currently no computer-aided method for ultrasonic images. Diagnosis, the patent of this invention boldly and innovatively tries to carry out computer-aided diagnosis on the ultrasound images of cerebral vessels. After comparing with clinical data, the result of computer-aided diagnosis is accurate and reliable. the

On the other hand, there are more than 2 million new cases of cerebrovascular diseases in my country every year, and 1.2 million cases of death. Even the surviving patients have a high disability rate and affect people's quality of life. Therefore, early diagnosis of cerebrovascular diseases is very important. . The present invention provides a small device for preventing cerebrovascular diseases through computer-aided diagnosis of ultrasonic images by combining software and hardware. the

Contents of the invention

The object of the present invention is to provide a small device for preventing cerebrovascular diseases through computer-aided diagnosis of ultrasonic images. the

The present invention uses the combination of software and hardware to provide a small device for preventing cerebrovascular diseases through computer-aided diagnosis of ultrasonic images, also known as "ultrasonic stethoscope". The device is divided into two parts: hardware and software. Connect the ultrasonic converter through the ultrasonic probe, and then connect the mobile phone to complete. The main function is to convert the signal measured by the ultrasonic probe into an image and transmit it to the mobile phone for subsequent detection and analysis; the software part is divided into There are two types, one is used to detect the integrity of cerebral blood vessels, and the other is used to detect the risk of stroke, both of which are composed of five interfaces. the

In terms of hardware, an "ultrasonic stethoscope" is completed by connecting the ultrasonic probe to the converter, and the converter is then connected to the mobile phone, enabling doctors to use this light and compact device to perform ultrasonic examinations for patients, realizing the function of portability. Since the invention only detects the common carotid artery, the converter only needs one probe interface to connect the 5-10MHZ ultrasonic line resonance probe, so it is made into a small square box of about 15*10*5cm; due to the diversification of the interface of the mobile phone , so it is impossible to design a general-purpose interface. When designing, the mobile phone used is the Samsung Galaxy series, so the interface between the converter and the mobile phone can only be connected to this type of mobile phone for the time being. When a doctor is using it, it is like using a stethoscope. One end performs ultrasound on the patient, and the other end displays the ultrasound image on the screen of the mobile phone. The hardware, product model is BELSON5000G dual-function color Doppler converter (attached with high-frequency linear ultrasound probe). the

In addition, the present invention has also developed a series of ultrasonic computer-aided diagnosis software, which can run under the Android mobile phone system, and the software includes five interfaces. The first interface is to select the examination type to meet. The doctor can select the examination items according to the actual situation of the subject. If the patient is from the community and undergoes regular examination, click "community examination"; if the patient is from the hospital and undergoes in-depth examination, click " Hospital Examination”, any click of a button can enter interface 2. The button can enter interface 2. Interface 2 is the patient information interface. The doctor needs to enter the patient number, age, gender and blood pressure of the patient in this interface. After inputting, click the "OK" button to enter the interface 3. Click the "Return" button to return to the interface 1. Interface 3 is the shooting interface of ultrasound images. The doctor can select "2D" and "DOPPLER" to switch the image mode. Evaluate, click "Save" to take pictures of the next blood vessel. The type of blood vessels to be taken depends on the actual situation of the patient. common artery”, if you select “hospital examination” in interface 1, you need to take pictures of “left internal carotid artery”, “left vertebral artery”, “right internal carotid artery” and “right vertebral artery”. After all blood vessels are taken, click "Next step" enters interface four; interface four is the diagnosis result interface, the computer automatically analyzes the hemodynamic parameters of each blood vessel according to the ultrasound images taken by the doctor, and compares them with the standard values corresponding to age and gender, the doctor You can check the general situation of the patient's blood vessels on this interface. For parameters that exceed the normal value, the system will mark them in red, and click on the diagnosis report to enter interface five; interface five is the diagnosis report interface. "Community Examination" gives a score of cerebral vascular integrity. The higher the score, the higher the vascular integrity. Conversely, the lower the vascular integrity. If it is "Hospital Examination", it gives a score of stroke risk , the higher the score, the greater the possibility of stroke, on the contrary, the lower the possibility of stroke, the doctor can fill in the doctor's order in the report column, and click "print" to print out the diagnosis report. In particular, when the result of the "community check" is 100 points, the system will automatically analyze the power spectrum and frequency spectrum based on the patient's Doppler image to ensure that there is no early stenosis and arteriosclerosis. Corresponding points will be deducted. The print report template is shown in Figure 7, in which all items are automatically filled in by the system, and the diagnosis result is filled in by the ultrasound doctor. If there is stenosis or plaque in the blood vessel, the system will automatically reflect this situation in the diagnosis result. the

In the report, the hemodynamic parameters and calculation methods involved are as follows:

The maximum blood flow velocity Vmax, given by the system analysis Doppler image;

The minimum blood flow velocity Vmin, given by the system analysis Doppler image;

Vessel diameter d, given by systematic analysis of 2D ultrasound images;

The average blood flow velocity Vmean is calculated by integrating the Doppler image by the system;

Average flow Q, Q=Vmean*d*3.14*d/2*d/2;

Peripheral resistance Rv, Rv=(Ps-(Ps+2*Pd)/3)/Q;

Dynamic resistance DR, DR=(Ps-(Ps+2*Pd)/3)/(Vmax*3.14*d/2*d/2-Q);

Pulse wave propagation velocity PWV, calculated by M-mode ultrasound;

Critical pressure CP, CP=Ps-Vmax*3.14*d/2*d/2*DR;

Diastolic pressure and critical pressure difference DP, DP=Pd-CP;

Peripheral resistance Rv, Rv=(Ps-(Ps+2*Pd)/3)/Q;

Pulsation index PI, PI=(Vmax-Vmin)/Vmean;

Resistance index RI, RI=(Vmax-Vmean)/Vmax;

Intima-media thickness IMT, IMT is given by systematic analysis of two-dimensional ultrasound images;

Total cerebral blood supply Qtotal, Qtotal=Qlcca+Qrcca+Qlva+Qrva. the

The invention makes ultrasonic equipment and computer-aided diagnosis equipment more widely used, and it is more convenient for community hospitals and even family doctors to do regular checkups for patients. the

Description of drawings

Fig. 1 is the connection mode of hardware of the present invention;

Figure 2 is interface one;

Figure 3 is interface two;

Figure 4 is interface 3.1;

Figure 5 is interface 4.1;

Figure 6 is interface 5.1;

Figure 7 is interface 3.2;

Figure 8 is interface 4.2;

Figure 9 is interface 5.2;

Fig. 10 is a flow chart of the software and hardware part of the present invention. the

Detailed ways

The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments, but the implementation of the present invention is not limited thereto. the

Example 1:

patients from the community

When a patient comes to a community hospital for a regular checkup, the doctor should connect the 5-10MHZ high-frequency ultrasonic line resonance probe to the converter, and then connect the converter to the mobile phone, as shown in Figure 1, connect the hardware and enter the software interface. the

First enter interface 1 (2), click the "community check" button (2.1), enter interface 2 (3); fill in patient number (3.1), age (3.2), gender (3.3), systolic blood pressure (3.4) and diastolic After pressing (3.5), press the OK key (3.6) to enter interface 3.1 (4); interface 3.1 (4) is the shooting interface of ultrasound images. Doctors can choose "left common carotid artery", "right common carotid artery" "(4.1) to take ultrasonic images of the left and right common carotid arteries, select "2D" (4.2), "DOPPLER" (4.3) to switch the image mode, after shooting a blood vessel, the "stenosis" of the blood vessel ( 4.4), "plaque size" (4.5) to make an evaluation, click "Save" (4.6) to take pictures of the next blood vessel, after the blood vessels on both sides are taken, click "Next" (4.7) to enter interface 4 (5). 1. Interface 4. One (5) is the diagnosis result interface. The computer automatically analyzes the hemodynamic parameters of each blood vessel according to the ultrasound images taken by the doctor, and compares them with the standard values corresponding to age and gender. The doctor can Check the general situation of the patient's blood vessels on this interface. For parameters that exceed the normal value, the system will mark them in red. Click on the diagnosis report (5.1) to enter the interface five.one (6); interface five.one (6) is the diagnosis report interface , the system integrates all the parameters to give the final score. The higher the score, the higher the vascular integrity. On the contrary, the lower the vascular integrity, the doctor can fill in the doctor's order in the report column, and click "Print" (6.1) to print the diagnosis report come out. When the result is 100 points, the system will automatically analyze the power spectrum and frequency spectrum based on the patient's Doppler image to ensure that there are no early plaques and arteriosclerosis. If the above problems exist, corresponding points will be deducted. the

Example 2:

patients from hospital

When a patient comes to the hospital for further examination, the doctor should connect the 5-10MHZ high-frequency ultrasonic line resonance probe to the converter, and then connect the converter to the mobile phone, as shown in Figure 1, connect the hardware and enter the software interface. the

First enter interface 1 (2), click the "Hospital Examination" button (2.2), enter interface 2 (3); fill in patient number (3.1), age (3.2), gender (3.3), systolic blood pressure (3.4) and diastolic After pressing (3.5), press the OK key (3.6) to enter interface 3.2 (8); interface 3.2 (8) is the ultrasound image shooting interface, and the doctor can choose "left internal carotid artery" and "right vertebral artery" , "Left Internal Carotid Artery", "Right Vertebral Artery" (8.1) to take ultrasound images, select "2D" (8.2), "DOPPLER" (8.3) to switch the image mode, after shooting a blood vessel, the The "stenosis degree" (8.4) and "plaque size" (8.5) of the blood vessel are evaluated, and the next blood vessel can be taken by clicking "Save" (8.6). After the blood vessels on both sides are taken, click "Next" (8.7 ) Enter interface 4.2 (9); interface 4 (9) is the diagnosis result interface, the computer automatically analyzes the parameters of each blood vessel according to the ultrasound images taken by the doctor, and compares them with the standard values corresponding to age and gender. The doctor can check the general situation of the patient's blood vessels on this interface. For the parameters that exceed the normal value, the system will mark them in red. Click on the diagnosis report (9.1) to enter the interface 5.2 (10); the interface 5.2 (10) is the diagnosis report On the interface, the system synthesizes all the parameters and gives the final score. The higher the score, the higher the risk of stroke. "Print" (10.1), the diagnostic report can be printed out. In addition to the visible parameters, the system will automatically calculate the total blood flow of the patient's four blood vessels, and the calculation results will also be reflected in the final score. See Table 1 and Table 2 for the report form. 

Table 1: Cerebrovascular Integrity Analysis Report Sheet

Table 2: Stroke Risk Analysis Report Sheet

The preferred embodiments of the present invention have been specifically described above, but the present invention is not limited to the described embodiments, and those skilled in the art can also make various equivalents without violating the spirit of the present invention. Modifications or replacements, these equivalent modifications or replacements are all included within the scope defined by the claims of the present application. the

Claims (4)

1. one kind by the computer-aided diagnosis of ultrasonography is reached prevention cranial vascular disease midget plant, it is characterized in that, this device is divided into hardware components and software section, and described hardware components connects ultrasonic tr-ansducer by ultrasonic probe, then connects mobile phone; Described software section is by the computer-aided diagnosis software to ultrasonography.

2. a kind of midget plant by reaching prevention cranial vascular disease to the computer-aided diagnosis of ultrasonography according to claim 1, it is characterized in that, described hardware components, comprises the ultrasound lines resonance probe that product type is BELSON5000G Duplex color Doppler converter and 5 ~ 10MHZ.

3. a kind of midget plant by reaching prevention cranial vascular disease to the computer-aided diagnosis of ultrasonography according to claim 1 and 2, is characterized in that, the mobile phone that described hardware components uses is Samsung milky way series.

4. a kind of midget plant by reaching prevention cranial vascular disease to the computer-aided diagnosis of ultrasonography according to claim 1, it is characterized in that, described software section can run under Android mobile phone system, and this software comprises five interfaces, and interface one is inspect-type selection meeting; Interface two is patient information interface; Interface three is the shooting interface of ultrasonography; Interface four is diagnostic result interface; Interface five is diagnosis report interface.