Development of real-time tumor-tracking radiotherapy system with utilizing color X-ray image intensifier

• Project/Area Number: 22791163
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Radiation science
• Research Institution: Hokkaido University
• Principal Investigator: MIYAMOTO Naoki 北海道大学, 大学院・医学研究科, 特任助教 (00552879)
• Project Period (FY): 2010 – 2011
• Project Status: Completed (Fiscal Year 2011)
• Budget Amount: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000); Fiscal Year 2011: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000); Fiscal Year 2010: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
• Keywords: 放射線治療学 / 動体追跡放射線治療 / 放射線治療 / 動体追跡 / パターンマッチ / カラーX線画像 / 面像処理 / 画像処理

Research Abstract

The image processing that is combination of edge enhancement and subtraction was useful to extract the marker in the fluoroscopic image. This image processing can reduce the probability of marker lost and misidentification. And also, the imaging dose could be reduced while maintaining the equivalent image quality by applying the motion adaptive recursive image filter.

Research Products

• [Journal Article] Improvement of tracking accuracy and stability by recursive image processing in real-time tumor-tracking radiotherapy system (2012)
  • Author(s): Naoki Miyamoto, Kenneth Sutherland, Ryusuke Suzuki, Taeko Matsuura, Chie Toramatsu, Seishin Takao, Hideaki Nihongi, Rumiko Kinoshita, Shinichi Shimizu, Rikiya Onimaru, Kikuo Umegaki, Hiroki Shirato, Masayori Ishikawa
  • Journal Title: Proceedings of SPIE Volume: Vol.8316 Pages: 83160B-83160B
  • DOI: 10.1117/12.912734
• [Presentation] Improvement of tracking accuracy and stability by recursive image processing in real-time tumor-tracking radiotherapy system (2012)
  • Author(s): Naoki Miyamoto, Kenneth Sutherland, Ryusuke Suzuki, Taeko Matsuura, Chie Toramatsu, Seishin Takao, Hideaki Nihongi, Rumiko Kinoshita, Shinichi Shimizu, Rikiya Onimaru, Kikuo Umegaki, Hiroki Shirato, Masayori Ishikawa
  • Organizer: SPIE Medical Imaging
  • Place of Presentation: Town and Country Hotel and Convention Center San Diego(USA)
  • Year and Date: 2012-02-05
• [Presentation] Improvement of tracking accuracy and stability by recursive image processing in real-time tumor-tracking radiotherapy system (2012)
  • Author(s): Naoki Miyamoto
  • Organizer: SPIE Medical Imaging
  • Place of Presentation: Town and Country Hotel and Convention Center San Diego (USA)
  • Year and Date: 2012-02-05
• [Presentation] 動体追跡放射線治療における画像処理を応用したマーカ追跡精度の向上 (2010)
  • Author(s): 宮本直樹、石川正純、Kenneth Sutherland、Gerard Bengua、鈴木隆介、白土博樹
  • Organizer: 日本医学物理学会第100回学術大会
  • Place of Presentation: 学術総合センター(東京)
  • Year and Date: 2010-09-24
• [Presentation] 動体追跡放射線治療における画像処理を応用したマーカ追跡精度の向上 (2010)
  • Author(s): 宮本直樹
  • Organizer: 日本医学物理学会 第100回学術大会
  • Place of Presentation: 学術総合センター(東京)
  • Year and Date: 2010-09-24