Evaluation method for carotid atherosclerosis

Abstract

The invention discloses an evaluation method for carotid atherosclerosis. A medical image color ultrasound is applied to acquire an evaluation image. The evaluation method comprises the following steps: step S1, performing gray-scale ultrasonic scanning on a carotid artery; step S2, acquiring a plaque position and a stenosis degree according to a scanning result; step S3, performing vector blood imaging on the plaque position; step S4, generating a vascular wall stress evaluation threshold associated with the stenosis degree according to a dynamic vector blood flow image; and step S5, evaluating the condition of carotid atherosclerosis of a patient according to the evaluation threshold. According to the technical scheme, the gray-scale ultrasonic scanning and the vector blood flow imagingtechnology are combined, so that the hemodynamic change and the blood flow line change condition at the position of carotid artery stenosis can be visualized, and a diagnosis threshold with high sensitivity, high specificity and high accuracy is accurately acquired based on big data analysis. The evaluation method has extremely high applicability and clinical application value.

Description

technical field [0001] The invention relates to the technical field of medical image analysis, in particular to an evaluation method for carotid atherosclerosis. Background technique [0002] In the field of medical image acquisition and analysis technology, with the continuous advancement of science and technology, there are different requirements for the analysis of different diseases, and some traditional ultrasound image acquisition technologies are no longer suitable due to many limitations: for example, in carotid arteriosclerosis In the field of evaluation, the traditional color Doppler ultrasound imaging technology has the following limitations: [0003] 1) Blood flow velocity measurement and blood flow calculation are inaccurate: traditional color Doppler ultrasound imaging is highly dependent on Doppler angle, and in some clinical applications, the angle cannot be set at an established standard of less than 60°; in addition The measurement of blood flow always ass...

AI Technical Summary

Problems solved by technology

[0003] 1) Blood flow velocity measurement and blood flow calculation are inaccurate: traditional color Doppler ultrasound imaging is highly dependent on Doppler angle, and in some clinical applications, the angle cannot be set at an established standard of less than 60°; in addition The measurement of blood flow always assumes that the blood flow state is laminar flow, and the complex blood flow at the carotid artery cannot be well displayed;

[0004] 2) Too little hemodynamic information: the frame rate of color Doppler ultrasound imaging is only 10-20 frames per second, and only the blood flow in the direction of the ultrasound beam can be displayed, and the blood flow displayed at the same time is only systolic and diastolic Average blood flow, unable to reflect more hemodynamic details

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