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MR‒guided online adaptive radiotherapy with MRIdian Hiroyuki Okamoto 1 1Radiation Safety and Quality Assurance Division National Cancer Center Hospital Keyword: MR画像 , 即時適応放射線治療 , 寡分割照射 pp.603-609
Published Date 2024/9/10
DOI https://doi.org/10.18888/rp.0000002744
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Magnetic resonance(MR)image–guided radiotherapy has brought us some benefits and features that a conventional previous treatment machine does not have, such as delineations and treatment planning using MR images, MR–based positioning without imaging dose, marker–less tumor tracking and gated radiotherapy, and on–line adaptive radiotherapy(on–line ART). In 2017, we introduced MR–guided radiotherapy system, MRIdian® with three cobalt sources into our clinical practice. In 2022, we replaced it with a linac–based system for efficient on–line ART, and safe hypofractionated radiotherapy for the prostate, pancreas, lung, and liver cancers had been performed. In this article, we reported on specification and functionality of this treatment system, commissioning, and our clinical experiences.


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電子版ISSN 印刷版ISSN 0009-9252 金原出版

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