178. Trial prospettico per predire la correlazione dose risposta nei muscoli costrittori faringei in pazienti con tumore testa-collo Prospective trial to predict the pharyngeal constrictor muscle dose-response correlation in head and neck cancer patients

Purpose Radiotherapy, alone or combined with chemotherapy, is a treatment modality used frequently in head and neck cancer. It is important to delineate organs in the head and neck at risk for radiation-induced swallowing dysfunction (RISD). Irradiation of the Pharyngeal Constrictor Muscle (PSCM) seems to play a crucial role in swallowing dysfunctions and in particular in the voice and speech quality changes. Purpose of our retrospective study...