Abstract:Background: Absorbable hydrogel spacer injected between prostate and rectum is gaining popularity for rectal sparing. The spacer alters patient anatomy and thus requires new auto-contouring models. Purpose: To report the development and comprehensive evaluation of two deep-learning models for patients injected with a radio-transparent (model I) versus radiopaque (model II) spacer. Methods and materials: Model I was trained and cross-validated by 135 cases with transparent spacer and tested on 24 cases. Using r… Show more
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