An evaluation of cine-mode 3D portal image dosimetry for volumetric modulated arc therapy | NOVA. The University of Newcastle's Digital Repository

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Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.13/935727

Title: An evaluation of cine-mode 3D portal image dosimetry for volumetric modulated arc therapy
Author/Creator: Ansbacher, W; Swift, C-L; Greer, P. B.
Institution: The University of Newcastle. Faculty of Science & Information Technology, School of Mathematical and Physical Sciences
Description: We investigated cine-mode portal imaging on a Varian Trilogy accelerator and found that the linearity and other dosimetric properties are sufficient for 3D dose reconstruction as used in patient-specific quality assurance for VMAT (RapidArc) treatments. We also evaluated the gantry angle label in the portal image file header as a surrogate for the true imaged angle. The precision is only just adequate for the 3D evaluation method chosen, as discrepancies of 2° were observed.
Relation: 6th International Conference on 3D Radiation Dosimetry (IC3DDose). Journal of Physics: Conference Series (South Carolina 22-26 August, 2010)
Publisher Link: http://dx.doi.org/10.1371/journal.pgen.1001184
Date: 2010
Publisher: Institute of Physics Publishing
Keyword(s): radiation treatments; dosimeters; cine-mode; Electronic Portal Image dosimeter (EPID); Volumetric Modulated Arc Therapy (VMAT)
Resource Type: conference paper
Identifier: http://hdl.handle.net/1959.13/935727
Identifier: ISBN:1742-6588

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