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Adaptive radiotherapy for oropharyngeal and hypopharyngeal cancer at Kochi University Hospital Taro Ueda 1 1Department of Radiation Oncology Kochi Medical School, Kochi University Keyword: 適応放射線治療 , 頭頸部扁平上皮癌 , p16陽性中咽頭癌 , 強度変調放射線治療 pp.781-787
Published Date 2026/9/10
DOI https://doi.org/10.18888/rp.0000003202
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In intensity-modulated radiation therapy(IMRT)for head and neck squamous cell carcinoma, anatomical variations and tumor regression during treatment can alter the delivered dose distribution. Adaptive radiotherapy(ART)compensates for these changes, potentially reducing normal-tissue exposure while sustaining optimal target coverage. We retrospectively analyzed 72 patients with oropharyngeal and hypopharyngeal carcinoma treated with IMRT to identify determinants of replanning. Replanning was significantly more frequent in patients receiving concurrent chemoradiotherapy, those experiencing marked weight loss, and those with large pre-treatment tumor volumes. These factors may therefore serve as practical, clinically relevant selection criteria for ART implementation in routine clinical practice.


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電子版ISSN 印刷版ISSN 0009-9252 金原出版

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