Abstract
Radiotherapy is one of major modality for prostate cancer treatment. Technical improvements allow to deliver higher doses to the tumor, and improve protection of healthy tissues. Those improvements are enlarging indications and change treatment modalities for prostate cancer patients, on primary staging or at time of relapse (local or metastatic). Accounting to recent publications, 68Ga-PSMA PET should have an impact on radiotherapy treatment planning for those patients, especially in case of intermediate to high risk tumor. In case of metastatic disease, early detection of metastasis allows selection of patients with oligo-metastatic cancer for whom local treatments are in development. For localized prostate cancer, diagnosis of nodal extension permit volumes and doses modifications for radiotherapy. An accurate detection of the dominant intra-prostatic lesion gives the possibility of a focalized dose escalation to this significant cancer (“index lesions”). This new treatment strategies coming from technical progress are currently evaluated to assess their clinical benefit.
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