NDLI: The limitations of dose reconstruction without treatment imaging

Content Provider	IEEE Xplore Digital Library
Author	Kapatoes, J. Olivera, G. Ruchala, K. Reckwerdt, P. Smilowitz, J. Mackie, T.R.
Copyright Year	2000
Description	Author affiliation: Dept. of Med. Phys., Wisconsin Univ., Madison, WI, USA (Kapatoes, J.)
Abstract	Dose reconstruction (DR) is a radiotherapy process in which the full three-dimensional dose actually delivered to a patient is computed. The calculation is performed on a CT of the patient in the actual treatment position using the actual energy fluence obtained from delivery verification (DV). This provides valuable information regarding the efficacy of a treatment. Specifically, this is the basis for fraction-by-fraction adaptive radiotherapy. However, dose reconstruction is only as accurate as the inputs to the computation, namely the verified fluence and the CT. Studies were conducted regarding the effects of positional errors and internal anatomy changes for a canine nasopharyngeal treatment and a prostate treatment on an abdominal phantom, respectively. It was found that energy fluence errors may or may not be detected in DV. However, even if an error was detected, the authors show that the potential effects on outcome could not possibly be addressed without a CT at the time of delivery.
Starting Page	108
Ending Page	111
File Size	355838
Page Count	4
File Format	PDF
ISBN	0780364651
ISSN	1094687X
DOI	10.1109/IEMBS.2000.900681
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2000-07-23
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Image reconstruction Computed tomography Medical treatment Anatomy Imaging phantoms Detectors Abdomen Cadaver Dosimetry Quantum computing
Content Type	Text
Resource Type	Article

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