Patent ID: 8948487
Filing Date: 2015-02-03
Classification: G06T

Abstract:
1. A method for non-rigid registration of digital 3D coronary artery models with 2D fluoroscopic images during a cardiac intervention comprising the steps of: providing a digitized 3D centerline representation of a coronary artery tree, wherein the 3D centerline comprises a set of S segments composed of Q globally aligning the 3D centerlines to at least two 2D fluoroscopic images; and non-rigidly registering the 3D centerline to the at least two 2D fluoroscopic images by minimizing an energy functional that includes a summation of square differences between reconstructed centerline points and registered centerline points, a summation of squared 3D registration vectors, a summation of squared derivative 3D registration vectors, and a myocardial branch energy, wherein the non-rigid registration of the 3D centerline is represented as a set of 3D translation vectors r