An Intelligent System for Computerized Coronary Repair

摘要

An intelligent algorithm is developed in this paper whereby we measure the coronary stenoses using cardiac x-ray angiographic digital information, then we repair the stenoses mathematically, using the algorithm described in this paper, the resulted information can be transmitted to a robotic unit to inflate the balloon and repair the stenoses accurately. The robotic unit is guided by the computer. The coronary artery is detected based on differences in the gray scale of the cardiac image. Based on the discontinuities of the first derivative and the twist vector along the artery boundaries we are able to quantify the number of stenoses along the artery, and the degree of its stenosis. Parametric splines tracing the coronary artery are developed. The purpose of the splines is to mathematically reconstruct the damaged section(s). The maximum distance between the reconstructed artery and the damaged part of the artery defines a mathematical measure of the degree of damage. The theory and algorithms developed in this research paper have been implemented and is one of the options included in our cineangiographic digital viewer. Some of the other options are to play the cardiac images at varying speeds, stop, feed-forward one image at a time, or ten images at a time, go backwards one image at a time, or ten images at a time, zoom into a section of the image, find all the edges, show the network of arteries of the heart disregarding all other tissue, animate the heart showing the arteries only.