Optical Flow-Guided Analysis of Intrafractional Anatomical Variations in Pancreatic Tumors and Organs at Risk During Magnetic Resonance-Guided Adaptive Radiation Therapy Under Abdominal Compression
Optical flow-guided analysis of intrafractional variations revealed that pancreatic tumors exhibited smaller ranges of motion than the adjacent OARs. These findings warrant direction-specific margins that account for intrafractional anatomic variations in both the tumors and surrounding OARs during pancreatic MRgART under abdominal compression.
Authors
- Nobunari Hamaura
- Mutsumi Yamagishi
- Haruo Inokuchi
- Mai Sakagami
- Hiroshige Itoyama
- N. Mukumoto
- Nobutaka Mukumoto
- Ryo Ogino
- Kenji Hayashi
- Takanori Adachi
- Yuki Hata
- Mitsuhiro Nakamura
- Keiko Shibuya
Institutions
- Kyoto University (JP)
- Osaka Metropolitan University (JP)
- Tokyo Metropolitan University (JP)
Publication Details
- Journal
- Advances in Radiation Oncology
- Published
- 2026-02-01
- DOI
- https://doi.org/10.1016/j.adro.2026.102005
- Primary Topic
- MRI in cancer diagnosis
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- Japan Society for the Promotion of Science