A method for preparing calcified aortic valve based on CT image data

Abstract

The invention discloses a method for preparing calcified aortic valves based on CT image data, and belongs to the field of preparation of artificial heart valves. The method comprises the following steps of acquiring CT image data of the heart; based on the CT image data, performing 3D reconstruction of aorta roots; based on an aorta root three-dimensional model, reconstructing aortic valves; performing 3D printing of an aortic valve experiment model; and performing calcification degree treatment on the aortic valve cusps. Through intersectant geometry space of the aorta roots and left ventricle, the aortic valves are reconstructed, and the problem that the CT value of the aortic valves in the CT image data is close to the CT value of close tissue, so that the aortic valves cannot be accurately reconstructed, is solved. The aortic valves of different calcification degrees are obtained by calcification treatment on printed aortic valves. The prepared aortic valve model can be used for research on hemodynamics, and can also provide reference for design of artificial valves.

Description

technical field [0001] The invention relates to a novel method for preparing an aortic valve, which can meet the requirements of preparing healthy aortic valves with different calcification degrees. The invention belongs to the field of artificial heart valve preparation. Background technique [0002] The aortic valve sits between the left ventricle and the ascending aorta and maintains a one-way flow of blood from the left ventricle to the aorta. When the structure or function of the aortic valve changes, the blood cannot be discharged smoothly or the backflow of the discharged blood will cause the heart to increase the load and cause valve disease. Aortic valve disease is one of the cardiovascular diseases that seriously endanger human life and health. Among them, calcific aortic valve stenosis is the calcification of the valve, and calcium deposits on the valve leaflets, which eventually leads to valve stenosis. [0003] The blood flow and mechanical behavior of valve l...

AI Technical Summary

Problems solved by technology

[0006] The present invention mainly aims at the problem that the CT value of the aortic valve in the CT image data is similar to that of the nearby soft tissue, which leads to the problem that the aortic valve cannot be accurately selected, and a new method for preparing the aortic valve is invented.

Images