Progress in Medical Physics (한국의학물리학회지:의학물리)

Korean Society of Medical Physics (한국의학물리학회)
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Development of DICOM Convert Program for the Geant4 Monte Carlo Simulation of the Radiotherapy

방사선치료의 Geant4 전산모사를 위한 DICOM 변환 프로그램 개발

  • Kang, Jeongku (Department of Radiation Oncology, Presbyterian Medical Center) ;
  • Lee, Dong Joon (Department of Neurosurgery, Ilsan Paik Hospital, College of Medicine, Inje University)
  • 강정구 (전주 예수병원 방사선종양학과) ;
  • 이동준 (인제대학교 의과대학 일산백병원 신경외과학교실)
  • Received : 2013.11.26
  • Accepted : 2013.12.09
  • Published : 2013.12.31
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Abstract

The DICOM converter program of the Geant4 Monte Carlo simulation code for the application of radiotherapy was developed. We analysis the header part of the DICOM file and find various parameters, such as matrix size, pixel size, stored data bits, high bit, and padding values. Especially we evaluate every pixel value of the DICOM files. To conform the exact convert of the pixel values, we developed the verify program. As a result, the DICOM formats generated from difference CT vendors can be converted and verified for Genat4 calculations.

방사선치료의 선량계산을 위해 Geant4 기반의 전산모사를 실행할 때 필요한 응용 프로그램을 개발 하였다. DICOM의 헤더 부분을 분석하여 각종 파라메터를 구하였다. 특히 배포 판에서의 문제점을 모두 해결하기 위해 클래스를 새로 정의하였다. 따라서 국내에 설치된 대부분의 DICOM 파일을 변환 할 수 있게 되었다. 픽셀 데이터의 변환 값을 확인하는 프로그램을 개발하여 정확성을 비교 하였다.

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References

  1. Joh YG, Kim HD, Kim BY, et al: Calculation of energy spectra for electron beam of medical linear accelerator using GEANT4. Korean Journal of Medical Physics 22(2):85-91 (2011)
  2. Park SH, Jung WG, Rah JE, Park S, Suh TS: Evaluation of the secondary particle effect in inhomogeneous media for proton therapy using Geant4 based MC simulation . Journal of Medical Physics 21(4):311-322 (2010)
  3. Kimura A, Tanaka S, Aso T, et al: DICOM interface and visulization tool for Geant4-based dose calculation. Nuclear Science Symposium Conference Record 2005 IEEE Volume 2:981-984 (2005)
  4. Agostinelli S, Allison J, Amako K, et al: Geant4 developments and applications. IEEE Transactions on Nuclear Science 53(1):270-278 (2006) https://doi.org/10.1109/TNS.2006.869826
  5. Kim BY, Kim HD, Kim SJ, Oh SA, Kang JK, Kim SK: Study on the 6MV photon beam characteristics and analysis method from medical linear accelerators using Geant4 medical Linac2 example. Journal of Medical Physics 22(2):79-84 (2011)
  6. GEANT4 Collaboration Version Geant4 9.6.0: Geant4 user's guide for application developers. CERN (2013)
  7. ICRU Report 46: Photon, Electron, Proton and Neutron Interaction data for Body Tissues. International Commission on Radiation Units and Measurement, bethesda, MD (1992)
  8. Agostinelli S, Allison J, Amako K, et al: Geant4 - a simulation toolkit. Nuclear Instruments and Methods A 506(3):250-303 (2003) https://doi.org/10.1016/S0168-9002(03)01368-8