Cardiac atlas development and validation for automatic segmentation of cardiac substructures.

ABSTRACT:

Purpose

To develop and validate a set of atlases for auto-contouring cardiac substructures.

Methods

Eight radiation oncologists manually and independently delineated 15 cardiac substructures from noncontrast CT images of 6 patients by referring to their respective fused contrast CT images. Individual contours were fused together for each structure, edited by 2 physicians, and became atlases to delineate other 6 patients. The auto-delineated contours of the 6 additional patients became templates for manual contouring. These 12 patients with well-defined contours composed the final atlases for multi-atlas segmentation.

Results

The average time for manually contouring the 15 cardiac substructures was about 40min. Inter-observer variability was small for the heart, the ch

SUBMITTER: Zhou R 

PROVIDER: S-EPMC5292289 | biostudies-literature | 2017 Jan

REPOSITORIES: biostudies-literature