AUTOMATIC INTERATRIAL SEPTUM DETECTION FROM PRE-OPERATIVE AND INTRA-OPERATIVE 3D MEDICAL IMAGES FOR ACCURATE TRANSSEPTAL PUNCTURE

摘要

A computer-implemented method of determining an interatrial septum ring in a cardiac image includes determining a left atrium mean shape based on a plurality of training images and determining an interatrial septum ring mean shape based on the left atrium mean shape. A left atrium mesh is identified in a new image. Then, a deformation field from the left atrium mean shape to the left atrium mesh is calculated and applied to the interatrial septum ring mean shape to determine the interatrial septum ring in the new image.