S-Frame CT Immobilization Masks For Patients Undergoing Radiation Therapy For Head and Neck Cancer

Evaluation of Setup Accuracy in Med Tec S-Frame Immobilization Masks For Patients Undergoing Radiation Therapy For Head and Neck Cancer

Immobilization devices such as thermoplastic masks are used routinely in the radiation treatment of head and neck cancer patients. It is important to assess how well they function at preventing patient motion while the radiation treatment is being delivered. (i.e. isocentre set-up margins, patient motion with the mask). If these new thermoplastic masks such as MedTec S-frame allow less movement, then smaller margins are needed during radiation therapy which, in turn, would decrease side effects from the treatment.

Measurement of the accuracy of MedTec S-frame head and neck immobilization system (isocentre set-up accuracy, patient movement margins and movement of the normal tissue critical structures and planning target volumes)

Inclusion Criteria: Histological confirmation of mucosal malignancy in the head and neck (H&N) region Undergoing radiotherapy (RT) with curative intent using a lateral parallel pair treatment with an anterior or anterior/posterior low neck filed technique using a MedTec S-frame mask