Calculation method and device for obtaining vascular pressure difference based on individual gender

Abstract

The invention provides a calculation method and device for obtaining blood vessel pressure difference based on individual gender. The calculation method for obtaining blood vessel pressure difference based on individual gender includes: receiving anatomical data of a part of blood vessel segments and establishing a geometric model and a cross-sectional shape model, and calculating the shape difference function f(x) of the lumen of the target blood vessel; according to the anatomical data Combined with individual specific data, the blood flow model and the first blood flow velocity V 0 ; and through the correction parameter ω to the first blood flow velocity V 0 Perform correction to obtain the second blood flow velocity V; based on the morphological difference function f(x) of the lumen of the target blood vessel and the second blood flow velocity V, calculate and obtain the pressure difference value ΔP at any two positions of the target blood vessel. The calculation method and device for obtaining vascular pressure difference based on individual gender provided by the present invention improve the accuracy of vascular pressure difference calculation by introducing the concept of morphology and the correction parameter ω related to gender information.

Description

technical field [0001] The invention relates to a calculation method and device for obtaining blood vessel pressure difference based on individual gender, and belongs to the field of medical technology. Background technique [0002] The deposition of lipids and sugars in human blood on the blood vessel wall will form plaques on the blood vessel wall, which in turn will lead to vascular stenosis; especially the vascular stenosis near the coronary artery of the heart will lead to insufficient blood supply to the myocardium and induce coronary heart disease , angina pectoris and other diseases pose a serious threat to human health. According to statistics, there are about 11 million patients with coronary heart disease in my country, and the number of patients treated with interventional surgery is increasing by more than 10% every year. [0003] Conventional medical detection methods such as coronary angiography (CAG) and computed tomography (CT) can show the severity of coro...

AI Technical Summary

Problems solved by technology

In the actual process of blood flow, that is, in the actual calculation process of the blood pressure difference ΔP, factors such as the location, size and type of the lesion will affect the calculation of the blood flow pressure difference ΔP; at the same time, different The medical history information and physiological characteristics of the blood flow pressure will also affect the difference ΔP of blood flow pressure; therefore, in the prior art, the FFR obtained by calculating the difference ΔP of blood flow pressure will deviate from the actual value, resulting in the evaluation of coronary arteries by FFR Inaccurate results for narrow functions

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