Accurate coronary artery segmentation is a fundamental step in various medical imaging
applications such as stenosis detection, 3D reconstruction and cardiac dynamics assessing.
In this paper, a multiscale region growing (MSRG) method for coronary artery segmentation
in 2D X-ray angiograms is proposed. First, a region growing rule incorporating both
vesselness and direction information in a unique way is introduced. Then an iterative
multiscale search based on this criterion is performed. Selected points in each step are …