Radiotherapy & Oncology
Volume 93, Issue 1 , Pages 45-49, October 2009

Initial validations for pursuing irradiation using a gimbals tracking system

  • Kenji Takayama

      Affiliations

    • Department of Radiation Oncology and Image Applied Therapy, Kyoto University, Kyoto, Japan
    • Institute of Biomedical Research and Innovation, Kobe, Japan
    • Mitsubishi Heavy Industries Ltd., Tokyo, Japan
    • ,
  • Takashi Mizowaki

      Affiliations

    • Department of Radiation Oncology and Image Applied Therapy, Kyoto University, Kyoto, Japan
    • Corresponding Author InformationCorresponding author. Address: Department of Radiation Oncology and Image Applied Therapy, Graduate School of Medicine, Kyoto University, 54 Kawahara-cho, Shogoin Sakyo-ku, Kyoto 606-8507, Japan.
    • ,
  • Masaki Kokubo

      Affiliations

    • Institute of Biomedical Research and Innovation, Kobe, Japan
    • ,
  • Noriyuki Kawada

      Affiliations

    • Mitsubishi Heavy Industries Ltd., Tokyo, Japan
    • ,
  • Hiroshi Nakayama

      Affiliations

    • Mitsubishi Heavy Industries Ltd., Tokyo, Japan
    • ,
  • Yuichiro Narita

      Affiliations

    • Department of Radiation Oncology and Image Applied Therapy, Kyoto University, Kyoto, Japan
    • ,
  • Kazuo Nagano

      Affiliations

    • Institute of Biomedical Research and Innovation, Kobe, Japan
    • ,
  • Yuichiro Kamino

      Affiliations

    • Mitsubishi Heavy Industries Ltd., Tokyo, Japan
    • ,
  • Masahiro Hiraoka

      Affiliations

    • Department of Radiation Oncology and Image Applied Therapy, Kyoto University, Kyoto, Japan

Received 29 October 2008; received in revised form 8 July 2009; accepted 16 July 2009. published online 25 August 2009.

Abstract 

Our newly designed image-guided radiotherapy (IGRT) system enables the dynamic tracking irradiation with a gimbaled X-ray head and a dual on-board kilovolt imaging subsystem for real-time target localization. Examinations using a computer-controlled three-dimensionally movable phantom demonstrated that our gimbals tracking system significantly reduced motion blurring effects in the dose distribution compared to the non-tracking state.

Keywords: Pursuing irradiation, Gimbals tracking, Organ motion, Movable phantom, Image-guided radiotherapy (IGRT)

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PII: S0167-8140(09)00428-9

doi:10.1016/j.radonc.2009.07.011

Radiotherapy & Oncology
Volume 93, Issue 1 , Pages 45-49, October 2009

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