한국의학물리학회지:의학물리 (Progress in Medical Physics)

  • 제28권3호
  • /
  • Pages.129-133
  • /
  • 2017
  • /
  • 2508-4445(pISSN)
  • /
  • 2508-4453(eISSN)
한국의학물리학회 (Korean Society of Medical Physics)
권호 표지
DOI QR코드

DOI QR Code

A Pilot Study of the Scanning Beam Quality Assurance Using Machine Log Files in Proton Beam Therapy

  • Chung, Kwangzoo (Department of Radiation Oncology, Samsung Medical Center, Sungkyunkwan University School of Medicine)
  • 투고 : 2017.09.25
  • 심사 : 2017.09.30
  • 발행 : 2017.09.30
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

The machine log files recorded by a scanning control unit in proton beam therapy system have been studied to be used as a quality assurance method of scanning beam deliveries. The accuracy of the data in the log files have been evaluated with a standard calibration beam scan pattern. The proton beam scan pattern has been delivered on a gafchromic film located at the isocenter plane of the proton beam treatment nozzle and found to agree within ${\pm}1.0mm$. The machine data accumulated for the scanning beam proton therapy of five different cases have been analyzed using a statistical method to estimate any systematic error in the data. The high-precision scanning beam log files in line scanning proton therapy system have been validated to be used for off-line scanning beam monitoring and thus as a patient-specific quality assurance method. The use of the machine log files for patient-specific quality assurance would simplify the quality assurance procedure with accurate scanning beam data.

키워드

참고문헌

  1. RR Wilson. Radiological use of fast protons. Radiology. 1946;47:487-91. https://doi.org/10.1148/47.5.487
  2. JK Kang, MS Kim, WI. Jang, et. al. The clinical utilization of radiation therapy in Korea between 2009 and 2013. Radiat Oncol J. 2016;34:88-95. https://doi.org/10.3857/roj.2016.01753
  3. M Jermann. Particle therapy statistics in 2014. Int J Particle Ther. 2015;2:50-4. https://doi.org/10.14338/IJPT-15-00013
  4. H Li, N Sahoo, F Poenisch et. al. Use of treatment log files in spot scanning proton therapy as part of patient-specific quality assurance. Med Phys. 2013;40:021703-1-11.
  5. D Scandurra, F Albertini, R Meer, et. al. Assessing the quality of proton PBS treatment delivery using machine log files: comprehensive analysis of clinical treatments delivered at PSI Gantry 2. Phys Med Biol. 2016;61:1171-81. https://doi.org/10.1088/0031-9155/61/3/1171
  6. K Chung, Y Han, J Kim et. al. The first private-hospital based proton therapy center in Korea: Status of the Proton Therapy Center at Samsung Medical Center. Radiat Oncol J. 2015;33:337-43. https://doi.org/10.3857/roj.2015.33.4.337
  7. K Chung, J Kim, DH Kim, S Ahn, Y Han. The proton therapy nozzles at Samsung Medical Center: A Monte Carlo simulation study using TOPAS. J Korean Phys Soc. 2015;67:170-4. https://doi.org/10.3938/jkps.67.170
  8. K Chung, Y Han, SH Ahn, JS Kim, H Nonaka. Commissioning and Validation of a Dedicated Scanning Nozzle at Samsung Proton Therapy Center. Prog Med Phys. 2016;27:267-71. https://doi.org/10.14316/pmp.2016.27.4.267
  9. $GAFChromic^{TM}$ EBT3 film specifications, Available at www.gafchromic.com.
  10. G Moliere. Theorie der Streuung schneller geladener Teilchen II. Mehrfach-und Vielfachstreuung. Z Naturforsch A:Phys Sci. 1948;3a:78-97.

피인용 문헌

  1. Assessment of the modulation degrees of intensity-modulated radiation therapy plans vol.13, pp.1, 2018, https://doi.org/10.1186/s13014-018-1193-9
  2. Highly efficient and sensitive patient-specific quality assurance for spot-scanned proton therapy vol.14, pp.2, 2017, https://doi.org/10.1371/journal.pone.0212412