Daily positioning accuracy of frameless stereotactic radiation therapy with a fusion of computed tomography and linear accelerator (focal) unit: evaluation of z-axis with a z-marker

Authors
Uematsu, M Sonderegger, M Shioda, A Tahara, K Fukui, T Hama, Y Kojima, T Wong, JR Kusano, S
Citation
M. Uematsu et al., Daily positioning accuracy of frameless stereotactic radiation therapy with a fusion of computed tomography and linear accelerator (focal) unit: evaluation of z-axis with a z-marker, RADIOTH ONC, 50(3), 1999, pp. 337-339
Citations number
19
Categorie Soggetti
Radiology ,Nuclear Medicine & Imaging","Onconogenesis & Cancer Research
Journal title
RADIOTHERAPY AND ONCOLOGY
ISSN journal
01678140 → ACNP
Volume
50
Issue
3
Year of publication
1999
Pages
337 - 339
Database
ISI
SICI code
0167-8140(199903)50:3<337:DPAOFS>2.0.ZU;2-Q
Abstract
To evaluate quantitative positioning errors of frameless stereotactic radia tion therapy with a fusion of computed tomography (CT) and linear accelerat or unit, Z-type CT markers were attached to patients, and CT images were ob tained before and after daily treatment. In 40 verification tests, geometri cal errors were never more than 1 mm. (C) 1999 Elsevier Science Ireland Ltd . All rights reserved.