[Stereotactic irradiation using a linear accelerator with helmet-type shell].
A new method is proposed for external stereotactic and three-dimensional irradiation for a small target in the skull. In this method, we use a special long tube collimator, helmet-type shell (guiding rods are attached to the shell using the CT-stereotactic apparatus) and 10 MV linear accelerator. The patient's head is fixed conservatively by the helmet-type shell. In the phantom experiment, the 90% isodose area was 10 mm in diameter, and the error between the geometrical center of the target and the irradiated center was 2 mm.
Horikawa
Y
Y
Department of Radiology, Nagoya University, School of Medicine.
Ishigaki
T
T
Sakuma
S
S
D001932:Brain Neoplasms / Q000601:surgery*; D006801:Humans; D008961:Models, Structural; D016634:Radiosurgery / Q000295:instrumentation*