دورية أكاديمية
Quality Assurance for Small-Field VMAT SRS and Conventional-Field IMRT Using the Exradin W1 Scintillator
| العنوان: | Quality Assurance for Small-Field VMAT SRS and Conventional-Field IMRT Using the Exradin W1 Scintillator |
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| المؤلفون: | Zike Huang MS, Jian Qiao PhD, Cui Yang MS, Ming Liu MD, Jiazhou Wang PhD, Xu Han MS, Weigang Hu PhD |
| المصدر: | Technology in Cancer Research & Treatment, Vol 20 (2021) |
| بيانات النشر: | SAGE Publishing, 2021. |
| سنة النشر: | 2021 |
| المجموعة: | LCC:Neoplasms. Tumors. Oncology. Including cancer and carcinogens |
| مصطلحات موضوعية: | Neoplasms. Tumors. Oncology. Including cancer and carcinogens, RC254-282 |
| الوصف: | Background: Plastic scintillator detector (PSD) Exradin W1 has shown promising performance in small field dosimetry due to its water equivalence and small sensitive volume. However, few studies reported its capability in measuring fields of conventional sizes. Therefore, the purpose of this study is to assess the performance of W1 in measuring point dose of both conventional IMRT plans and VMAT SRS plans. Methods: Forty-seven clinical plans (including 29 IMRT plans and 18 VMAT SRS plans with PTV volume less than 8 cm 3 ) from our hospital were included in this study. W1 and Farmer-Type ionization chamber Exradin A19 were used in measuring IMRT plans, and W1 and microchamber Exradin A16 were used in measuring SRS plans. The agreement between the results of different types of detectors and TPS was evaluated. Results: For IMRT plans, the average differences between measurements and TPS in high-dose regions were 0.27% ± 1.66% and 0.90% ± 1.78% ( P = 0.056), and were −0.76% ± 1.47% and 0.37% ± 1.34% in low-dose regions ( P = 0.000), for W1 and A19, respectively. For VMAT SRS plans, the average differences between measurements and TPS were −0.19% ± 0.96% and −0.59% ± 1.49% for W1 and A16 with no statistical difference ( P = 0.231). Conclusion: W1 showed comparable performance with application-dedicated detectors in point dose measurements for both conventional IMRT and VMAT SRS techniques. It is a potential one-stop solution for general radiotherapy platforms that deliver both IMRT and SRS plans. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 1533-0338 15330338 |
| Relation: | https://doaj.org/toc/1533-0338 |
| DOI: | 10.1177/15330338211036542 |
| URL الوصول: | https://doaj.org/article/f4d3b0f3c3664269ab15a2590dfd079d |
| رقم الأكسشن: | edsdoj.f4d3b0f3c3664269ab15a2590dfd079d |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 15330338 |
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| DOI: | 10.1177/15330338211036542 |