title: Patient immobilization during CT for treatment planning of head and neck cancer.
abstract: Immobilizers are described that have been used during computed tomography (CT) to ensure reproducibility of patient position during all phases of radiation treatment planning and delivery. The immobilizer causes no degradation or artifact on CT images; hence, the value of the images in radiation treatment planning is not compromised.
mesh_terms: D006258:Head and Neck Neoplasms / Q000000981:diagnostic imaging / Q000532:radiotherapy*; D006801:Humans; D007103:Immobilization; D014057:Tomography, X-Ray Computed / Q000295:instrumentation / Q000379:methods*