The clinical target volume delineation of para aortic lymph node region for adjuvant radiotherapy based on the regularity of lymph node metastasis in biliary tract cancer
Abstract:Background: To determine the high-risk lymphatic drainage area and the precise delineation of para aortic clinical target volume(CTV) for biliary tract cancer(BTC) according to the regularity of lymph node metastasis(LNM). Methods: The imaging records of patients with BTC from 2015 to 2020 were analyzed retrospectively. The metastasis risk for different lymph node regions was assessed. The impact of different recurrence sites on survival was evaluated by Kaplan–Meier method. The diagnosed para aortic lymph nod… Show more
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