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Development of multi-planar dose verification by use of a flat panel EPID for intensity-modulated radiation therapy
- Source :
- Radiological Physics and Technology. 6:226-232
- Publication Year :
- 2012
- Publisher :
- Springer Science and Business Media LLC, 2012.
-
Abstract
- Our purpose in this study was to evaluate the accuracy of a new multi-planar dose measurement method. The multi-planar dose distributions were reconstructed at each depth by convolution of EPID fluence and dose kernels with the use of EPIDose software (SunNuclear). The EPIDose was compared with EPID, MapCHECK (SunNuclear), EDR2 (Kodak), and Monte Carlo-calculated dose profiles. The EPIDose profiles were almost in agreement with Monte Carlo-calculated dose profiles and MapCHECK for test plans. The dose profiles were in good agreement with EDR2 at the penumbra region. For dose distributions, EPIDose, EDR2, and MapCHECK agreed with that of the treatment-planning system at each depth in the gamma analysis. In comparisons of clinical IMRT plans, EPIDose had almost the same accuracy as MapCHECK and EDR2. Because EPIDose has a wide dynamic range and high resolution, it is a useful tool for the complicated IMRT verification. Furthermore, EPIDose can also evaluate the absolute dose.
- Subjects :
- Physics
Measurement method
Radiation
business.industry
Electrical Equipment and Supplies
Radiotherapy Planning, Computer-Assisted
High resolution
Radiotherapy Dosage
Physical Therapy, Sports Therapy and Rehabilitation
General Medicine
Dose distribution
Intensity-modulated radiation therapy
Radiation Dosage
Flat panel
Gamma analysis
Planar
Optics
Dose verification
Radiology, Nuclear Medicine and imaging
Radiotherapy, Intensity-Modulated
business
Nuclear medicine
Monte Carlo Method
Subjects
Details
- ISSN :
- 18650341 and 18650333
- Volume :
- 6
- Database :
- OpenAIRE
- Journal :
- Radiological Physics and Technology
- Accession number :
- edsair.doi.dedup.....a6568ece70b4cadf9cf989982e047294