4D deformation field of coronary arteries from monoplane rotational X-ray angiography

Abstract We present a new method to automatically compute a (3D+t) 4D parametric deformation field of coronary arteries from one single rotational X-ray angiography acquisition. We first build 3D centerline models of the coronary arteries and then compute 4D deformations that make the 3D model fit the entire sequence, at all cardiac cycle phases. Taking advantage of the 4D deformation field knowledge, we propose a new clinical application in rotational X-ray angiography called “stabilized display”, presenting a focused and centered display of 3D points of interest. Results on patient data sets are presented.