Development of PDRESS (Patient Specific Dose Real Evaluation Systems) using a TENOMAG Gel and Optical CT (VISTA TM) in Clinical IMRT Prostate Case

The aims of this study, we present the preliminary results of 3 dimensional dose evaluation software (PDRESS, patient specific dose real evaluation systems). In this work, we compared planned 3D dose distribution with measured 3D dose distribution using a novel normoxic polymer gel dosimeter (TENOMA...

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Bibliographic Details
Published in:Journal of physics. Conference series 2010-11, Vol.250 (1), p.012005
Main Authors: Lee, Suk, Shim, Jang Bo, Chang, Kyung Hwan, Cao, Yuanjie, Yi, Jaeyoun, Park, Jinwoo, Cho, Sam Ju, Lee, Sang Hoon, Huh, HyunDo, Cho, Kwang Hwan, Min, Chul Kee, Yang, Dae Sik, Park, Young Je, Yoon, Won Seob, Kim, Chul Yong
Format: Article
Language:English
Subjects:
Computed tomography
Data analysis
Evaluation
Optical scanners
Physics
Polymer gels
Probability distribution functions
Prostate
Radiation dosage
Radiation therapy
Software
Systems analysis
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Summary:The aims of this study, we present the preliminary results of 3 dimensional dose evaluation software (PDRESS, patient specific dose real evaluation systems). In this work, we compared planned 3D dose distribution with measured 3D dose distribution using a novel normoxic polymer gel dosimeter (TENOMAG) and a commercial cone-beam optical CT scanner (VISTATM, Modus Medical Devices, Inc., London, ON, Canada) to verify the 3D dose distribution in intensity-modulated radiation therapy (IMRT) prostate case. And we developed PDRESS using the Xelis Flatform which is developed by INFINITT Corporation is used to display the 3D dose distribution by loading the DICOM RT Data which is exported from RTP and optical-CT reconstructed VFF file. Data analysis is achieved by comparing the RTP data with the VFF data using profile, gamma map, and DTA. The profiles showed good agreement between RTP data, gel dosimeter, and gamma distribution and the precision of the dose distribution is within ± 5%. The results from this study show that there are no significantly discrepancies between the calculated dose distribution from treatment plan and the measured dose distribution from a TENOMAG gel scanned with an optical CT scanner. The 3D dose evaluation software (PDRESS) which is developed in this study evaluates the accuracy of the three dimensional dose distributions.
ISSN:1742-6596
1742-6588
1742-6596
DOI:10.1088/1742-6596/250/1/012005