Segmentation of cardiac cine MR images for extraction of right and left ventricular chambers.
A two-stage algorithm for extraction of the ventricular chambers (endocardial surfaces) in flow-enhanced magnetic resonance images is described. In the first stage, the approximate locations and sizes of the endocardial surfaces are determined by intensity thresholding. In the second stage, points on each approximated surface are repositioned to nearest locally maximum gradient magnitude points and a generalized cylinder is fitted to them. Examples of ventricular chambers in cine MR images determined by this algorithm are presented.
Goshtasby
A
A
Dept. of Electr. Eng., Illinois Univ., Chicago, IL.
Turner
D A
DA