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Journal of Radioanalytical and Nuclear Chemistry

, Volume 322, Issue 3, pp 1287–1297 | Cite as

A study of dose verification and comparison for complex irradiation field with high dose rate radiation by using a 3D N-isopropylacrylamide gel dosimeter

  • Chun-Hsu Yao
  • Tung-Hao Chang
  • Chun-Ting Su
  • Yuan-Chun Lai
  • Shih-Ming Hsu
  • Chin-Hsing ChenEmail author
  • Yuan-Jen ChangEmail author
Article
  • 21 Downloads

Abstract

This study aimed to investigate dosimeter characteristics by using a photon beam with and without the flattening filter of intensity-modulated radiation therapy (IMRT) and volumetric modulated arc therapy (VMAT) by using a 3D N-isopropylacrylamide (NIPAM) polymer gel. A self-developed optical computed tomography scheme was used to measure the dose distribution. Gamma evaluation was performed between the dose distribution calculated by a treatment planning system and the measured dose distribution by using the criteria of 3% dose difference and 3 mm distance to agreement. Under these criteria, the passing rates showed no significant difference between IMRT and VMAT irradiation with and without the flattening filter. All these results revealed that the NIPAM gel dosimeter was for high-dose-rate radiation and clinical-pretreatment verifications.

Keywords

NIPAM gel dosimeter Optical CT Intensity-modulated radiation therapy (IMRT) Volumetric modulated arc therapy (VMAT) Flattening filter-free beam Gamma evaluation 

Notes

Acknowledgements

This study was supported by the Ministry of Science and Technology, Executive Yuan, Taipei, Taiwan (Grant No. MOST 106-2314-B-035-001, website: https://www.most.gov.tw/?l=en), China Medical University (Grant No. CMU107-S-12 and CMU106-S-04, website: http://english.cmu.edu.tw/), and Changhua Christian Hospital (Grant No. CTU106-CH-006, website: http://www2.cch.org.tw/cch_english/).

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Copyright information

© Akadémiai Kiadó, Budapest, Hungary 2019

Authors and Affiliations

  1. 1.Biomaterials Translational Research CenterChina Medical University HospitalTaichung CityTaiwan, ROC
  2. 2.Department of Biomedical Imaging and Radiological ScienceChina Medical UniversityTaichung CityTaiwan, ROC
  3. 3.School of Chinese MedicineChina Medical UniversityTaichung CityTaiwan, ROC
  4. 4.Department of Biomedical InformaticsAsia UniversityTaichung CityTaiwan, ROC
  5. 5.Department of Radiation OncologyChanghua Christian HospitalChanghua CityTaiwan, ROC
  6. 6.Department of Biomedical Imaging and Radiological ScienceNational Yang-Ming UniversityTaipei CityTaiwan, ROC
  7. 7.Department of Management Information SystemsCentral Taiwan University of Science and TechnologyTaichung CityTaiwan, ROC
  8. 8.Department of Aerospace and Systems EngineeringFeng-Chia UniversityTaichung CityTaiwan, ROC

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