Deformable Image Registration for Breast Adaptive Tomotherapy

The dosimetric scanner needed to calculate the dose to be delivered to the tissues will be carried out according to the standard practice. The treatment plan will be carried out by the physicist in accordance with the dose constraints and validated by the radiation therapist. Each treatment session is preceded by positioning imaging to ensure high precision in the treated area. During the first session, the acquisition of the positioning scanner will take into account the entire region of the target volume in accordance with the classic treatment protocol. Usually, the positioning scans of the remaining sessions are carried out on a smaller area around the operating bed in order to reduce the acquisition time. However, in the context of this study, mid- and end-of-treatment positioning scans will be acquired over the same exploration range as on the first day. These scanners will make it possible to compare the contouring work carried out manually by the radiotherapist and that obtained by the deformable registration algorithm.