Validation of in-house treatment planning system software for cobalt-60 teletherapy unit at two radiotherapy installations

13th South-East Asian Congress of Medical Physics 2015

物理学;医药卫生

Mu'Minah, I.A.S.^1 ; Toresano, L.O.H.Z.^1 ; Wibowo, W.E.^2 ; Sugiyantari^3 ; Pawiro, S.A.^1

Department of Physics, Faculty of Mathematics and Natural Sciences, Universitas Indonesia, Depok

16424, Indonesia^1

Department of Radiotherapy, Cipto Mangunkusumo National Center Hospital, Jakarta, Indonesia^2

Department of Radiotherapy, Persahabatan Center Hospital, Jakarta, Indonesia^3

关键词: Absorbed dose;    Beam conditions;    Field treatments;    Measurements of;    Medical physics;    Optimal planning;    Treatment planning;    Treatment planning systems;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/694/1/012029/pdf
DOI  :  10.1088/1742-6596/694/1/012029

学科分类：卫生学

来源: IOP

【 摘 要 】

DSSuperDose v.1.0 is an in-house treatment planning system (TPS) developed by Medical Physics and Biophysics Laboratory (LFMB) Universitas Indonesia as a treatment planning software for Cobalt-60 teletherapy unit. The main objective of this study was the validation of in-house TPS calculation as an essential part in quality assurance (QA) of radiotherapy. Validation of an in-house TPS was performed with two Cobalt-60 teletherapy units by comparison between in-house TPS and ISIS TPS and by measurements of absorbed dose. Mean dose deviations between in-house TPS and measurement were (1.97 ± 2.42)% for open field, (1.32 ± 1.30)% for tray field, and (2.91 ± 2.36)% for wedge field treatments. In-house TPS provide optimal planning for open and tray beam conditions with depth fewer than 10 cm (≤ 10 cm) and field sizes up to 20×20 cm2, while for wedge beam conditions with field sizes fewer than the physical size of the wedge. Comparison of in-house TPS and ISIS TPS demonstrated a good match of 96%. From the results, it is concluded that DSSuperDose v.1.0 is adequately accurate for treatment planning of radiotherapy.