title: Stereotactically guided fractionated radiotherapy: technical aspects.
abstract: A system for high precision radiotherapy in the head and neck region has been developed. The components of the system are a head mask connected to a stereotactic frame, a localization unit that can be used during CT- and MR-imaging and a stereotactic target positioner. Conformal precision radiotherapy is planned with a new treatment planning system (Voxelplan-Heidelberg). Three different multi-leaf collimator systems are used. An evaluation of the precision and accuracy of the head fixation system, which was performed with a photogrammetry system, is presented.
authors.affiliation: German Cancer Research Center, Research Program Radiological Diagnostics and Therapy, Heidelberg.
authors.forename: W
authors.initials: W
authors.lastname: Schlegel
authors.forename: O
authors.initials: O
authors.lastname: Pastyr
authors.forename: T
authors.initials: T
authors.lastname: Bortfeld
authors.forename: G
authors.initials: G
authors.lastname: Gademann
authors.forename: M
authors.initials: M
authors.lastname: Menke
authors.forename: W
authors.initials: W
authors.lastname: Maier-Borst
mesh_terms: D006257:Head; D006258:Head and Neck Neoplasms / Q000532:radiotherapy; D006801:Humans; D008279:Magnetic Resonance Imaging; D011879:Radiotherapy Dosage; D011881:Radiotherapy, Computer-Assisted / Q000379:methods*; D013238:Stereotaxic Techniques; D014057:Tomography, X-Ray Computed