SU-E-T-544: Commissioning and Clinical Evaluation of a Secondary Check Software for 3D Conformal and IMRT Treatment Plans

Medical Physics
P FoongB Poppe

Abstract

The increasing complexities of the geometry of 3D radiation treatment plans possess challengesto the monitor unit (MU) and dose verification in clinical routine. In this work, the commissioningof the DIAMOND software (PTW-Freiburg Germany) for two Siemens linear accelerators(Primus & Artiste) along with the evaluation of its performance is described. DIAMOND employs the modified Clarkson integration method for dose computation and a pointeye-view (PEV) method for scatter calculation on collimators by a geometrical back-projectinginto the collimation system from the view of the source. During the commissioning process, themachine data (geometrical set up) and dosimetry base data such as the percentage depth dose(PDD), head scatter factor Sc as well as total scatter factor Sc,p, off-axis profiles are entered into the software. A comprehensive validation process is performed following the provided protocol.For evaluation purposes, twelve 3D conformal treatment plans and two prostate IMRT plans arecalculated with DIAMOND and the results are compared to the values from the treatmentplanning system (TPS). The deviations of the MU for 3D conformal treatment plans computed with the DIAMONDsoftware are within ±3%. For IMRT plan verifica...Continue Reading

Related Concepts

Related Feeds

Buruli Ulcer

Buruli ulcer is a progressive disease of subcutaneous tissues caused by mycobacterium ulcerans. Here is the latest research.

Related Papers

Reports of Practical Oncology and Radiotherapy : Journal of Greatpoland Cancer Center in Poznań and Polish Society of Radiation Oncology
Vijayalakshmi KuppusamyLavanya Murugan
© 2022 Meta ULC. All rights reserved