Simplified calculation method based on coronary artery multimode image crack formation and expansion and plaque fracture risk quantification evaluation system

Abstract

The invention discloses a simplified calculation method based on coronary artery multimode image crack formation and expansion and a plaque fracture risk quantification evaluation system, and the method comprises the steps: obtaining multimode images, such as coronary artery angiography images and intracavity images (such as optical coherence tomography), through an image input module; respectively segmenting and registering interested blood vessels or plaques on different images by adopting an image processing technology, and quantitatively obtaining anatomical indexes of lesion coronary plaques; and further calculating the distribution of the dynamic indexes of the superficial wall based on time sequence coronary angiography and determining a relatively high-risk position along the longitudinal direction of the blood vessel so as to obtain a fatigue risk coefficient formed by the local crack of the superficial wall. According to the method, the anatomical indexes of the coronary artery multi-modal image are combined, and the quantitative assessment of the crack formation based on the superficial surface of the coronary artery and the plaque crack propagation risk based on the cross section image are further added, so that the plaque fracture process is assessed more completely and comprehensively.

Description

technical field [0001] The invention relates to a simplified calculation method and system for plaque rupture risk based on coronary images, and belongs to the field of medical technology. Background technique [0002] Plaque rupture secondary to occlusive thrombosis is the main pathogenesis of acute coronary syndrome. Quantitative assessment of the risk of plaque rupture will help clinicians formulate individualized prevention and treatment strategies to improve the long-term prognosis of patients with coronary heart disease. At present, the evaluation methods for identifying vulnerable plaques are mainly divided into two categories, namely, the evaluation of anatomical quantification indicators based on imaging, and the functional evaluation based on imaging. The first category of evaluation methods includes the SNYTAX score of quantifying coronary anatomy by angiography, and the diagnosis of thin-cap fibroma vulnerable plaque based on intraluminal imaging, etc., but the ...

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Problems solved by technology

However, due to the variability of coronary artery morphology over time during the cardiac cycle, this method is not well suited for the risk assessment of coronary plaques.

[0005] In conclusion, although the above-mentioned system software and patent documents obtain plaque stability assessment methods from different image sources and corresponding calculation methods, a single image source cannot fully present the tearing cracks in the superficial wall of lesioned coronary plaques penetrating the fibrous cap. plaque rupture process

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