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Assessment of the dosimetric accuracies of CATPhan 504 and CIRS 062 using kV-CBCT for performing direct calculations.
- Source :
-
Journal of Medical Physics . Jul-Sep2014, Vol. 39 Issue 3, p133-141. 9p. - Publication Year :
- 2014
-
Abstract
- The dosimetric accuracies of CATPhan 504 and CIRS 062 have been evaluated using the kV-CBCT of Varian TrueBeam linac and Eclipse TPS. The assessment was done using the kV-CBCT as a standalone tool for dosimetric calculations towards Adaptive replanning. Dosimetric calculations were made without altering the HU-ED curves of the planning computed tomography (CT) scanner that is used by the Eclipse TPS. All computations were done using the images and dataset from kV-CBCT while maintaining the HU-ED calibration curve of the planning CT (pCT), assuming pCT was used for the initial treatment plan. Results showed that the CIRS phantom produces doses within ±5% of the CT-based plan while CATPhan 504 produces a variation of ±14% of the CT-based plan. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 09716203
- Volume :
- 39
- Issue :
- 3
- Database :
- Academic Search Index
- Journal :
- Journal of Medical Physics
- Publication Type :
- Academic Journal
- Accession number :
- 98040821
- Full Text :
- https://doi.org/10.4103/0971-6203.139001