Open access
Sep 2026
Cross-fraction prior learning for scalable organ-at-risk segmentation in abdominal MR-guided radiotherapy.
BACKGROUND Manual organ-at-risk (OAR) delineation takes 20-40 min per case, a major bottleneck within the 50-90 min treatment window of abdominal MR-guided adaptive radiotherapy (MRgRT). Most deep learning systems adopt single-fraction approaches that discard valuable temporal context from prior treatment fractions....
Chengyin Li, D. Rusu, Rafi Ibn Sultan et al.
· Medical Physics (Lancaster) · 0 citations