Open AccessComparison of Dose Volume Histogram (DVH) of Simulated Object Calculated by Analytically and Treatment Planning System (TPS): Preliminary Study
Author(s) -
Fitriyani Fitriyani,
Ariansyah Saputra,
Prawito Prajitno,
Djarwani Soeharso Soejoko
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1505/1/012024
Subject(s) - dose volume histogram , radiation treatment planning , voxel , object (grammar) , imaging phantom , interpolation (computer graphics) , mathematics , cube (algebra) , histogram , computer science , nuclear medicine , computer graphics (images) , computer vision , artificial intelligence , geometry , radiation therapy , medicine , image (mathematics) , animation
TPS is the key to the success of external radiotherapy medication, which directly affects the quality of treatment planning and accuracy of dose calculation within the plan. The output of TPS’s plan result is in form of DVH curve. DVH is the reference for dose dispersion on the target or healthy organ. Within this research, DVH result from the TPS and DVH result from analytical calculation were compared. The DVH comparison was started by creating a simulation object in form of virtual phantom using Matlab program in various geometrical shapes, which were sphere, cube, and cylinder. The planning on simulation object was conducted using TPS Eclipse. From the result of the plan using TPS Eclipse and analytical measurement, it can be concluded that the highest value difference was on the sphere object simulation. While for the D max and D min value comparison, the highest difference was in D min with the highest discrepancy. This was caused by the voxel size on each measurement. Besides, the dose value of interpolation and voxel determination on the surface of the geometrical simulation object also affected the value of analytical measurement, so it resulted in the higher value compared to the calculation result on each TPS.