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- Title
Patient positioning and immobilization procedures for hybrid MR-Linac systems.
- Authors
Cuccia, Francesco; Alongi, Filippo; Belka, Claus; Boldrini, Luca; Hörner‑Rieber, Juliane; McNair, Helen; Rigo, Michele; Schoenmakers, Maartje; Niyazi, Maximilian; Slagter, Judith; Votta, Claudio; Corradini, Stefanie; Hörner-Rieber, Juliane
- Abstract
Hybrid magnetic resonance (MR)-guided linear accelerators represent a new horizon in the field of radiation oncology. By harnessing the favorable combination of on-board MR-imaging with the possibility to daily recalculate the treatment plan based on real-time anatomy, the accuracy in target and organs-at-risk identification is expected to be improved, with the aim to provide the best tailored treatment. To date, two main MR-linac hybrid machines are available, Elekta Unity and Viewray MRIdian. Of note, compared to conventional linacs, these devices raise practical issues due to the positioning phase for the need to include the coil in the immobilization procedure and in order to perform the best reproducible positioning, also in light of the potentially longer treatment time. Given the relative novelty of this technology, there are few literature data regarding the procedures and the workflows for patient positioning and immobilization for MR-guided daily adaptive radiotherapy. In the present narrative review, we resume the currently available literature and provide an overview of the positioning and setup procedures for all the anatomical districts for hybrid MR-linac systems.
- Subjects
HEAD tumors; CHEST tumors; PARTICLE accelerators; MAGNETIC resonance imaging; BRAIN tumors; ABDOMINAL tumors; RADIOTHERAPY; TUMORS; PATIENT positioning; NECK tumors
- Publication
Radiation Oncology, 2021, Vol 16, Issue 1, p1
- ISSN
1748-717X
- Publication type
journal article
- DOI
10.1186/s13014-021-01910-6