Three-dimensional image dataset i.e. computer-tomography image dataset, evaluation method, for use during treating heart disease, involves classifying air into breathable air and blowing air and determining information of interesting region

摘要

The method involves segmenting a left atrium (2) contained in a three-dimensional image dataset (1). An interesting region (3) covering an esophagus is selected from the dataset based on the segmentation of the atrium by determining and projecting a center point of the atrium in an anterior-posterior direction on a rear wall of the atrium for defining a referent point. Air describing voxels is detected in the dataset. The detected air is classified into breathable air (11) contained in respiratory organs and blowing air contained in the region. Information of the region is determined.