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

• Autorzy: Juda Aleksandra , Kukołowicz Paweł

Identyfikatory

DOI

10.2478/pjmpe-2022-0002

• Języki publikacji: EN

Abstrakty

EN

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.

Słowa kluczowe

EN

dosimetric verification; multi-tumor target SRS; HyperArc; EBT3 Gafchromic film

• Wydawca: Polskie Towarzystwo Fizyki Medycznej ; De Gruyter
• Czasopismo: Polish Journal of Medical Physics and Engineering
• Rocznik: 2022
• Tom: Vol. 28, Iss. 1
• Strony: 13--18
• Opis fizyczny: Bibliogr. 12 poz., rys.

Twórcy

autor

Juda Aleksandra

• Department of Medical Physics, Maria Sklodowska-Curie National Research Institute of Oncology (MSCNRIO) in Warsaw, Poland

autor

Kukołowicz Paweł

• Department of Medical Physics, Maria Sklodowska-Curie National Research Institute of Oncology (MSCNRIO) in Warsaw, Poland

Bibliografia

• 1. Shah AP, Meeks DT, Willoughby TR, et al. Intrafraction motion during frameless radiosurgery using Varian HyperArcTM and BrainLab ElementsTM immobilization systems. J Radiosurg SBRT. 2020;7(2):149-156
• 2. Ramakrishna N, Rosca F, Friesen S, Tezcanli E, Zygmanszki P, Hacker F. A clinical comparison of patient setup and intra-fraction motion using frame-based radiosurgery versus a frameless image-guided radiosurgery system for intracranial lesions. Radiother Oncol. 2010;95(1):109-15. https://doi.org/10.1016/j.radonc.2009.12.030
• 3. Bisht RK, Natanasabapathi G, Kale SS. Quantitative analysis of Gamma Knife stereotactic radiosurgery for uveal melanoma. Polish Journal of Medical Physics and Engineering. 2020;26(2):111-117. https://doi.org/10.2478/pjmpe-2020-0012
• 4. Trifiletti DM, Chao ST, Sahgal A, Sheehan JP. Stereotactic Radiosurgery and Stereotactic Body Radiation Therapy. A Comprehensive Guide. Springer Nature, Switzerland; 2019
• 5. Mamballikalam G, Senthilkumar S, Ahamed BPM, et al. Point dose verification of Cranial Stereotactic Radiosurgery using micro Ionization Chamber and EBT3 film for 6MV FF and FFF beams in Varian TrueBeam LINAC. Polish Journal of Medical Physics and Engineering. 2020;26(3):135-142. https://doi.org/10.2478/pjmpe-2020-0015
• 6. Niroomand-Rad A, Blackwell CR, Coursey BM, et al. Radiochromic film dosimetry: Recommendations of AAPM Radiation Therapy Committee Task Group 55. Med. Phys. 1998;25(11):2093-2115. https://doi.org/10.1118/1.598407
• 7. Niroomand-Rad A, Chiu-Tsao S-T, Grams MP, et al. Report of AAPM Task Group 235 Radiochromic Film Dosimetry: An Update to TG-55. Med. Phys. 2020;47(12):5986-6025. https://doi.org/10.1002/mp.14497
• 8. Bharati A, Mandal SR, Srivastava AK, et al. Evaluation of the effect of random setup errors on dose delivery in Intensity Modulated Radiotherapy. Polish Journal of Medical Physics and Engineering. 2020;26(1):55-60. https://doi.org/10.2478/pjmpe-2020-0006
• 9. HyperArc Training Plans Delivery Guide, www.myvarian.com
• 10. Film QA Pro Software and Gafchromic EBT3 Film Overview and Instructions for Use, Ashland, IAEA GAFChromic Film and FilmQAPro Workshop October 1, 2015
• 11. GAFChromic™ EBT3 film specifications, www.gafchromic.com
• 12. MickeA, Lewis DF, Yu X. Multichannel film dosimetry with nonuniformity correction. Med Phys. 2011;38(5):2523-34. https://doi.org/10.1118/1.3576105
• 12. Low DA, Harms WB, Mutic S, Purdy JA. A technique for the quantitative evaluation of dose distributions. Med Phys. 1998 May;25(5):656-61. https://doi.org/10.1118/1.598248

Uwagi

Opracowanie rekordu ze środków MEiN, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2022-2023).