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Feasibility Study of a Custom-made Film for End-to-End Quality Assurance Test of Robotic Intensity Modulated Radiation Therapy System

 Juhye Kim  ;  Kwangwoo Park  ;  Jeongmin Yoon  ;  Eungman Lee  ;  Samju Cho  ;  Sohyun Ahn  ;  Jeongeun Park  ;  Wonhoon Choi  ;  Ho Lee 
 Korean Journal of Medical Physics (의학물리), Vol.27(4) : 189-195, 2016 
Journal Title
 Korean Journal of Medical Physics (의학물리) 
Issue Date
This paper aims to verify the clinical feasibility of a custom-made film created by a laser cutting tool for End-to-End (E2E) quality assurance in robotic intensity modulated radiation therapy system. The custom-made film was fabricated from the Gafchromic EBT3 film with the size of 8"×10" using a drawing that is identical to the shape and scale of the original E2E film. The drawing was created by using a computer aided design program with the image file, which is obtained by scanning original E2E film. Beam delivery and evaluations were respectively performed with the original film and the custom-made film using fixed-cone collimator on three tracking modes: 6D skull (6DS), Xsight spine (XS), and Xsight lung (XL). The differences between total targeting errors of the original and custom-made films were recorded as 0.17 mm, 0.3 mm, and 0.17 mm at 6DS, XS, and XL tracking modes, respectively. This indicates that the custom-made film could yield nearly equivalent results to those of the original E2E film, given the uncertainties caused by distortions during film scanning and vibrations associated with film cutting. By confirming the clinical feasibility of a custom-made film for E2E testing, it can be expected that economic efficiency of the testing will increase accordingly.
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1. College of Medicine (의과대학) > Dept. of Radiation Oncology (방사선종양학교실) > 1. Journal Papers
Yonsei Authors
Park, Kwang Woo(박광우) ORCID logo https://orcid.org/0000-0002-9843-7985
Ahn, So Hyun(안소현)
Yoon, Jeongmin(윤정민)
Lee, Eung Man(이응만)
Lee, Ho(이호) ORCID logo https://orcid.org/0000-0001-5773-6893
Cho, Sam Ju(조삼주)
Choi, Won Hoon(최원훈)
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