Method and device for acquiring blood flow characteristic values based on body mass indexes

Abstract

The invention provides a method and a device for acquiring blood flow characteristic values based on body mass indexes. The method for acquiring the blood flow characteristic values based on the bodymass indexes includes the steps: adjusting working parameters of an X-ray generation device based on individual body mass indexes, acquiring specific geometric parameters of an individual area-of-interest and building a geometric model; building a morphological difference function f(x) of the area-of-interest based on the geometric model; acquiring a blood flow model of an individual coronary artery system in the area-of-interest and acquiring the values such as the blood flow velocity V, blood flow pressure Pa and pressure difference values delta P reflecting blood flow characteristics of thearea-of-interest according to the individual geometric model in the area-of-interest. According to the method and the device for acquiring the blood flow characteristic values based on the body massindexes, by introducing the conception of morphology, geometric model building accuracy can be ensured according to the individual body mass indexes, and blood flow characteristic value calculation result accuracy is further improved.

Description

technical field [0001] The invention relates to a method and a device for acquiring blood flow characteristic values ​​based on a body mass index, 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 cardiovascular 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 ...

AI Technical Summary

Problems solved by technology

In the actual process of blood flow, that is, in the actual calculation process of the difference ΔP of blood flow pressure, factors such as the location, size and type of the lesion all have an impact on the calculation of the difference ΔP of blood flow pressure; the prior art In the above, the location, size and type of the lesion can be obtained by establishing a geometric model of the region of interest, especially, when using an X-ray device to obtain the geometric parameters of the lesion in the region of interest, the accuracy of the geometric parameters is related to the individual's body mass index , that is, when using the same working parameters to obtain the geometric parameters of the individual through the X-ray device, the geometric parameters obtained by the obese individual have a large deviation, which cannot accurately reflect the geometric shape of the individual, resulting in a large deviation of the geometric model established by the geometric parameters and further making the blood Computation of stream eigenvalues ​​is biased

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