2Department of Radiation Oncology, Erciyes University Faculty of Medicine, Kayseri
3Department of Radiation Oncology, Medicana Hospital, Istanbul OBJECTIVES
This study aims to application of the IAEA TRS-430 QA procedures of EclipseTM v7.5 TPS for electron energies. In addition, the trends of the deviations found in the conducted tests have been determined.
METHODS
The calculations of TPS and measurements irradiations of the
treatment device have been compared. As a result, the local
dose deviation values and their confidence limit values have
been obtained.
RESULTS
All confidence limit values were detected that it was increased
depending on expanding depth. But each confidence limit values
were found to show different change depending on expanding
field size. Results of CT based inhomogeneity corrections
and complex surface shapes tests were found outside
tolerances, especially δ3.
CONCLUSION
The QA of our clinic's TPS has been done and it has been
found that there aren't drawbacks in its use in treatment. Only
the errors found in our study for the parameters used in treatment
planning has to be considered.