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Expectations for particle therapy in lung cancer management:from the standpoint of X-ray radiotherapy Yukinori Matsuo 1 1Department of Radiation Oncology Kindai University Faculty of Medicine Keyword: 粒子線治療 , 肺癌 , 治療選択 pp.55-58
Published Date 2026/1/10
DOI https://doi.org/10.18888/rp.0000003038
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Particle therapy offers superior dose distributions based on the Bragg peak, enabling reductions in dose to organs at risk. In lung cancer, however, indications are not uniform, as treatment safety margins vary widely depending on tumor characteristics and comorbidities. Following the 2024 reimbursement reform in Japan, proton and carbon-ion therapy became covered for medically inoperable early-stage lung cancer, but cost differentials versus stereotactic body radiation therapy(SBRT)necessitate careful patient selection. From the standpoint of X-ray radiotherapy, particle therapy may be most beneficial for toxicity reduction in early-stage disease with high risk factors(central tumors, larger lesions, and interstitial lung disease)and potential survival improvements via organ-at-risk sparing in locally advanced disease. The results of RTOG 1308 comparing X-ray and proton therapy will likely shape future clinical adoption.


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電子版ISSN 印刷版ISSN 0009-9252 金原出版

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