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1 Polish Journal of Medical Physics and Engineering

1 2022

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Dosimetric verification of multi-tumor target cases treated with SRS HyperArc technique using EBT3 radiochromic films

Juda Aleksandra, Kukołowicz Paweł

Polish Journal of Medical Physics and Engineering

2022

Vol. 28, Iss. 1

13--18

Introduction: Dosimetric verification of Intensity Modulation Radiotherapy treatment plans is usually carried out before the start of treatment. It is of special importance in the case of highly modulated plans, such as plans for patients in whom many tumors are irradiated simultaneously. In this work, we present the results of the verification of multi-target plans performed with the stereotactic HyperArc technique. Material and methods: The results of dosimetric verification of 35 patient plans in the head are presented. The results are analyzed in terms of the number of tumors, and the distance of the tumor from the isocenter. Measurements were carried out with the film method. The gamma methodology was used (3%/2mm). Results: The results showed a very good agreement between measurements and calculations. Conclusions: No dependence of the verification result on the number of targets and the distance between the center of tumor and isocenter was found.