The Comparison Study of Quadratic Infinite Beam Program on Optimization Instensity Modulated Radiation Therapy Treatment Planning (IMRTP) between Threshold and Exponential Scatter Method with CERR? In The Case of Lung Cancer

6th Asian Physics Symposium

Hardiyanti, Y.^1 ; Haekal, M.^1 ; Waris, A.^1 ; Haryanto, F.^1

Departement of Physics, Nuclear Physics and Biophysics, Institut Teknologi Bandung, Indonesia^1

关键词: Clinical target volumes;    Computational environments;    Exponential methods;    Gross tumor volume;    Intensity modulated radiation therapy;    Planning target volumes;    Quadratic optimization;    Radiation therapy treatment planning;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/739/1/012144/pdf
DOI  :  10.1088/1742-6596/739/1/012144

来源: IOP

【 摘 要 】

This research compares the quadratic optimization program on Intensity Modulated Radiation Therapy Treatment Planning (IMRTP) with the Computational Environment for Radiotherapy Research (CERR) software. We assumed that the number of beams used for the treatment planner was about 9 and 13 beams. The case used the energy of 6 MV with Source Skin Distance (SSD) of 100 cm from target volume. Dose calculation used Quadratic Infinite beam (QIB) from CERR. CERR was used in the comparison study between Gauss Primary threshold method and Gauss Primary exponential method. In the case of lung cancer, the threshold variation of 0.01, and 0.004 was used. The output of the dose was distributed using an analysis in the form of DVH from CERR. The maximum dose distributions obtained were on the target volume (PTV) Planning Target Volume, (CTV) Clinical Target Volume, (GTV) Gross Tumor Volume, liver, and skin. It was obtained that if the dose calculation method used exponential and the number of beam 9. When the dose calculation method used the threshold and the number of beam 13, the maximum dose distributions obtained were on the target volume PTV, GTV, heart, and skin.