Method and device for obtaining characteristic value of blood flow based on body mass index

Abstract

The present invention provides a method and device for obtaining a blood flow characteristic value based on a body mass index. The method for obtaining a blood flow characteristic value based on a body mass index comprises: adjusting the working parameters of an X-ray emission device based on an individual's body mass index, To obtain the specific geometric parameters of the individual region of interest, and establish a geometric model; establish the morphological difference function f(x) of the region of interest based on the geometric model; obtain the blood flow model of the individual coronary system in the region of interest, and combine From the geometric model of the individual in the region of interest, the blood flow velocity V, the blood flow pressure Pa, and the pressure difference value ΔP in the region of interest are obtained to reflect the blood flow characteristics. The method and device for obtaining blood flow characteristic value based on body mass index provided by the present invention can ensure the accuracy of geometric model establishment by introducing the concept of morphology and combining with individual body mass index, and further improve the calculation of blood flow characteristic value for the purpose of accuracy of results.

Description

technical field [0001] The invention relates to a method and a device for obtaining a blood flow characteristic value based on a body mass index, and belongs to the field of medical technology. Background technique [0002] The deposition of lipids and carbohydrates in human blood on the blood vessel wall will form plaques on the blood vessel wall, which will then lead to vascular stenosis; especially the vascular stenosis near the coronary arteries of the heart will lead to insufficient blood supply to the heart muscle 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 coronary heart disease patients in my country, and the number of patients treated with cardiovascular interventional surgery is increasing by more than 10% every year. [0003] Although conventional medical detection methods such as coronary angiography (CAG) and computed tomography (CT) can displa...

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

Images