A new fixation aid for the radiotherapy of eye tumors.
A modified swim goggle holding a light spot as an optical guide for actively aligning the eye in a reproducible orientation has been constructed to perform radiotherapy of ocular tumors. This device is compatible with computed tomography (CT) and magnetic resonance imaging systems. Image fusion of these data sets yielded clinically acceptable results. The reproducibility of the eye's positioning is tested by repeated CT. The eye's alignment during radiotherapy is monitored by an infrared TV camera with individual markings of the eye's position on the TV-monitor screen. From 2003-2006, 50 patients were treated with this fixation aid by radiosurgery with good patient compliance.
Buchgeister
Markus
M
Department for Radiotherapy and Radiooncology, Eberhard-Karls University of Tübingen, Hoppe-Seyler-Strasse 3, 72076 Tübingen, Germany. markus.buchgeister@med.uni-tuebingen.de
Grisanti
Salvatore
S
Süsskind
Daniela
D
Bamberg
Michael
M
Paulsen
Frank
F
D005133:Eye Movements; D005135:Eye Protective Devices; D005403:Fixation, Ocular; D006801:Humans; D008027:Light; D008279:Magnetic Resonance Imaging; D010349:Patient Compliance; D016634:Radiosurgery; D015203:Reproducibility of Results; D014057:Tomography, X-Ray Computed; D014604:Uveal Neoplasms / Q000000981:diagnostic imaging / Q000532:radiotherapy* / Q000601:surgery