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A new fixation aid for the radiotherapy of eye tumors
Author(s) -
Buchgeister Markus,
Grisanti Salvatore,
Süsskind Daniela,
Bamberg Michael,
Paulsen Frank
Publication year - 2007
Publication title -
medical physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.473
H-Index - 180
eISSN - 2473-4209
pISSN - 0094-2405
DOI - 10.1118/1.2804750
Subject(s) - radiation therapy , fixation (population genetics) , magnetic resonance imaging , radiosurgery , medical imaging , medicine , image guided radiation therapy , nuclear medicine , medical physics , radiology , population , environmental health
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.