The invention discloses an model

Abstract

The invention discloses an X-ray image simulation method based on a patch model, which relates to the technical field of medical virtual reality and comprises the following steps of: segmenting from aCT image to obtain a triangular patch model of each organ; carrying out sequential unrelated fusion mixing operation on the forward face depth map and the backward face depth map of the model of eachorgan to obtain a thickness value of each projection position of the organ model; simulating the energy attenuation of X-rays by using a Lambert-Beer law for each organ model;carrying out deep fusionon the X-ray images of the plurality of organs; and adding noise to the fused X-ray image. According to the technical scheme, the interventional operation is simulated more accurately, and the authenticity of virtual training and rehearsal is improved; The melting and mixing operation is completed by using a transparent technology irrelevant to the sequence, so that the problem that the geometricbody possibly has self-intersection to cause that the sorting cannot be completed is solved; Attenuation generated when X-rays penetrate through a human body is effectively reduced; And a light projection algorithm is used to solve the problem of deep sorting of a plurality of organ models.

Description

technical field [0001] The invention relates to the technical field of medical virtual reality, in particular to an X-ray image simulation method based on a surface model. Background technique [0002] Cardiovascular disease is one of the leading causes of death worldwide. Among them, cardiac coronary artery disease forms plaques in coronary arteries, which seriously threatens human life and health. Percutaneous coronary intervention is an effective technique for the treatment of cardiovascular diseases. The main process is: under the guidance of X-rays, the doctor sends the guide wire into the human femoral artery through the puncture of the blood vessel on the body surface, and the guide wire goes retrograde along the artery through the femoral artery Entering the aorta and entering the coronary artery vascular network, doctors then diagnose and treat coronary artery plunger through specific cardiac catheterization techniques. [0003] Percutaneous coronary intervention ...

AI Technical Summary

Problems solved by technology

[0004] In the vascular interventional simulators in the prior art, the geometry in the simulated image may have self-intersection, which leads to the problem that the sorting cannot be completed, and the attenuation that occurs when the imaging device passes through the human body cannot be realized. In addition, the existing vascular interventional simulators cannot Solve the problem of deep sorting of multiple organ models

[0005] In summary, although the vascular interventional simulators in the prior art can be used to train doctors and / or medical students' surgical skills and to preview and plan the surgical process, with the rapid development of medicine, how to effectively solve the above problems? Problems in the prior art, and improving the accuracy of the simulation process for skin coronary intervention, as well as technical issues such as the authenticity of virtual training and rehearsal, are the problems that those skilled in the art need to solve at present

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