Avtor/Urednik		Podgoršak, EB; Pike, GB; Olivier, A; Pla, M; Souhami, L
Naslov		Radiosurgery with high energy photon beams: a comparison among techniques
Tip		članek
Vir		Int J Radiat Oncol Biol Phys
Vol. in št.		Letnik 16, št. 3
Leto izdaje		1989
Obseg		str. 857-65
Jezik		eng
Abstrakt		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.
Deskriptorji		BRAIN DISEASES RADIOTHERAPY, HIGH-ENERGY BRAIN DISEASES COBALT RADIOISOTOPES PARTICLE ACCELERATORS RADIOTHERAPY, HIGH-ENERGY STEREOTAXIC TECHNIQUES