Abstract:

In our study, it was aimed to compare the dose distributions of the virtual formed vertebra tumor (L1 level) created in TPS (Multiplan and Eclipse treatment planning systems) with the results of TLD dosimetry in CIRS ATOM phantom. For measurements, Computed tomography (CT) images were performed for CIRS ATOM Rando phantom planning. Right kidney, left kidney, spinal cord and heart volumes were formed as critical organs and CTV was created as a target volume. Treatment plans were created using the same criteria in Eclipse (version 8.9.17) and Multiplan (version 4.5.3) TPS. TLD places were identified on the TPS and the values on the plane were read. These values were compared to TLD values. The minimum and maximum differences between the average read value at the TLD measurement point and the dose reading at the same point in the Multiplan TPS were 4.4% to 8.5%, respectively. The minimum and maximum differences between the average read value at the TLD measurement point and the dose reading at the same point in the Eclipse TPS were found as 4.4% and 46.1%, respectively. As conclusion, similar results were obtained in terms of critical organ doses in both techniques. 

Keywords: