ArticleTechnical innovations & patient support in radiation oncology2025
Assessment of upright immobilization methods for abdominal and head-and-neck cancer treatments in a carbon ion radiotherapy setting.
Article in Technical innovations & patient support in radiation oncology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
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Who cites it
1 citing paper in PubMed.
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Authors and funding
10 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Background and Purpose: Upright patient positioning is an emerging approach in radiotherapy that may overcome current limitations in carbon ion radiotherapy (CIRT). This study evaluated upright immobilization techniques for abdominal and head-and-neck (HN) cancers in a CIRT setting. Materials and Methods: Ten volunteers were positioned on the Chair, a demo upright positioning system (Leo Cancer Care, USA). Three setups were evaluated: no immobilization devices, vacuum bags alone (ESFORM; Engineering System Co., Japan), and vacuum bags with a thermoplastic shell (Shellfitter; Kuraray Trading Co., Japan), called the "shell" setup. Interfractional and intrafractional errors were assessed using skin markers drawn on the abdominal and HN areas. Interfractional shifts per direction and Euclidean distances were calculated by comparing reference and repeated images. Intrafractional shifts per direction and Euclidean distances were calculated from images acquired over a 15-min period. Also, volunteers rated their comfort for each setup on a scale of 1-5. Differences in the interfractional and intrafractional motion, and comfort ratings between the three setups were investigated. Results: Significant differences ( Conclusion: Upright positioning in CIRT appears feasible. Further research is needed to refine immobilization techniques to support clinical implementation of upright positioning in CIRT.
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