title: Progress in 3-D treatment planning for photon beam therapy.
abstract: The purpose of this report is to study the feasibility of improving dose distributions using non-coplanar photon beams from a linear accelerator. Non-coplanar beams may enter the patient in any arbitrary configuration. This type of treatment technique requires a three-dimensional (3-D) planning system. Clinical examples are used to illustrate the general problems in 3-D treatment planning, and the potential improvement over coplanar beam treatments. Features of a treatment planning system for 3-D planning are discussed.
mesh_terms: D001932:Brain Neoplasms / Q000532:radiotherapy; D001943:Breast Neoplasms / Q000532:radiotherapy; D003201:Computers; D005260:Female; D006801:Humans; D010870:Pineal Gland; D010911:Pituitary Neoplasms / Q000532:radiotherapy; D011827:Radiation; D011879:Radiotherapy Dosage / Q000295:instrumentation*; D014057:Tomography, X-Ray Computed