A study for non-rigid 2x2D-3D registration of coronary artery images using bifurcation points matching with bi-plane x-ray fluoroscopy

Abstract

The registration of preoperative 3D to intraoperative 2D images plays a crucial role in percutaneous coronary intervention. This technique reduces uncertainty regarding vessel topology and depth information in 2D intraoperative images. The aim of 2D/3D image registration is to determine the most appropriate image alignment. However, 2D/3D registration of heart images is challenging, due to differences in dimensionality and non-rigid motion, among others. In this paper, we propose a bifurcation-based biplane non-rigid 2D/3D registration method for coronary arteries. Experiments were performed in a virtual environment, and the results of the registration show an average distance with a ground truth of 0.57 mm.