Automatic segmentation of pelvic structures from magnetic resonance images for prostate cancer radiotherapy.


PURPOSE Target-volume and organ-at-risk delineation is a time-consuming task in radiotherapy planning. The development of automated segmentation tools remains problematic, because of pelvic organ shape variability. We evaluate a three-dimensional (3D), deformable-model approach and a seeded region-growing algorithm for automatic delineation of the prostate… (More)


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