Author/Editor | Podgoršak, EB; Pike, GB; Olivier, A; Pla, M; Souhami, L | |
Title | Radiosurgery with high energy photon beams: a comparison among techniques | |
Type | članek | |
Source | Int J Radiat Oncol Biol Phys | |
Vol. and No. | Letnik 16, št. 3 | |
Publication year | 1989 | |
Volume | str. 857-65 | |
Language | eng | |
Abstract | The presently known radiosurgical techniques with high energy photon beams are based either on the commercially available Gamma unit utilizing 201 stationary cobalt beams or on isocentric linear accelerators. The techniques using linear accelerators are divided into the single plane rotation, the multiple non-coplanar arcs, and the dynamic rotation. A brief description of these techniques is given, and their physical characteristics, such as precision of dose delivery, dose fall-off outside the target volume, and isodose distributions are discussed. It is shown that the multiple non-coplanar arcs technique and the dynamic rotation give dose distributions similar to those of the Gamma unit, which makes these two linear accelerator based techniques attractive alternatives to radiosurgery with the Gamma unit. | |
Descriptors | BRAIN DISEASES RADIOTHERAPY, HIGH-ENERGY BRAIN DISEASES COBALT RADIOISOTOPES PARTICLE ACCELERATORS RADIOTHERAPY, HIGH-ENERGY STEREOTAXIC TECHNIQUES |