Abstract:
A patient immobilization device for radiotherapy includes a one-piece composite body having a core and a carbon fiber reinforced skin encapsulating the core. The composite body further includes a posterior surface configured for mounting the composite body upon a radiotherapy support table, and an anterior surface defining a cradle. Positioning a patient upon the immobilization device and supporting the patient with the cradle enables emitting therapeutic radiation towards a craniospinal treatment site of the patient from a posterior side of the immobilization device while the patient is supported in a supine position. The emitted radiation may include proton beam radiation.