Reduction of PTV margins for elective pelvic lymph nodes in online adaptive radiotherapy of prostate cancer patients.

John Alfred Brennsæter,Tordis Johnsen Dahle, Jannicke Nøkling Moi, Ingvild Førsvoll Svanberg, Gry Sandvik Haaland,Sara Pilskog

Acta oncologica (Stockholm, Sweden)（2023）

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摘要

It is safe to reduce the PTV margin from 5 to 4 mm for the elective pelvic lymph nodes for prostate patients treated with oART. Further margin reductions can be motivated for patients presenting little intrafraction motion.

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关键词

elective pelvic lymph nodes,online adaptive radiotherapy,ptv margins,prostate cancer

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