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Method for preparing calcified aortic valves based on CT image data

A technology of aortic valve and CT imaging, applied in the direction of heart valve, can solve the problem of inaccurate selection of aortic valve, and achieve the effect of easy promotion, real shape and low cost

Active Publication Date: 2019-05-03
BEIJING UNIV OF TECH
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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.

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  • Method for preparing calcified aortic valves based on CT image data
  • Method for preparing calcified aortic valves based on CT image data
  • Method for preparing calcified aortic valves based on CT image data

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Embodiment Construction

[0027] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0028] like figure 1 As shown, the technical solution adopted by the present invention is a method for preparing a calcified aortic valve based on CT image data, the method comprising: S11, obtaining cardiac CT image data; S12, three-dimensional reconstruction of the aortic root based on CT image data; S13 , Reconstruction of the aortic valve based on the three-dimensional model of the aortic root; S14, 3D printing of the aortic valve experimental model; S15, treatment of the degree of calcification of the aortic valve leaflets.

[0029] a) To reconstruct the aortic valve based on CT image data, the format of CT image data is required to be DICOM format which can be used for medical data exchange.

[0030] b) When reconstructing the aortic root based on CT image data, set the threshold to 200-2600 to ensure that the reconstructed 3D geometric model i...

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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 degrees of calcification. 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 keeps blood flowing in one direction 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 discharged blood flow reverses, which will increase the load on the heart and cause valve disease. Aortic valve disease is one of the cardiovascular diseases that seriously endanger human life and health. Among them, calcified aortic valve stenosis is calcification of the valve, and calcium deposits on the valve leaflets, eventually leading to valve stenosis. [0003] The blood flow status and valve leaflet mechanical ...

Claims

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Application Information

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IPC IPC(8): A61F2/24
Inventor 刘赵淼杨刚薛贺波逄燕
Owner BEIJING UNIV OF TECH
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