Method for diagnosing and positioning coronary artery stenosis by using computer

The invention relates to a method for diagnosing and positioning coronary artery stenosis by using a computer, which comprises the following steps of: processing a first multi-dimensional coronary artery matrix depth information image through calculation, and calculating and processing a first stenosis area blood vessel part Kt in the first multi-dimensional coronary artery matrix depth information image through a first calculation unit to obtain a first image A; and performing first image instance segmentation Go on the first image A to obtain a segmented second coronary artery blood vessel image. 本发明涉及一种使用计算机对冠状动脉狭窄诊断定位方法，通过计算对第一多维冠状动脉矩阵深度信息图像进行处理，将第一多维冠状动脉矩阵深度信息图像中的第一狭窄区域血管部分Kt通过第一计算单元计算处理得到第一图像A，并对所述第一图像A进行第一图像实例分割Go，用于得到分割后第二冠状动脉血管图像。