Head and neck multi‐organ auto‐segmentation on CT images aided by synthetic MRI

Purpose Because the manual contouring process is labor‐intensive and time‐consuming, segmentation of organs‐at‐risk (OARs) is a weak link in radiotherapy treatment planning process. Our goal was to develop a synthetic MR (sMR)‐aided dual pyramid network (DPN) for rapid and accurate head and neck multi‐organ segmentation in order to expedite the treatment planning process. Methods Forty‐five patients’ CT, MR, and manual contours pairs were...