Developing the coaching system using tumor tracking information

• Project/Area Number: 25461903
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Radiation science
• Research Institution: University of Tsukuba
• Principal Investigator: Terunuma Toshiyuki 筑波大学, 医学医療系, 助手 (40361349)
• Co-Investigator(Kenkyū-buntansha): SAKAE Takeji 筑波大学, 医学医療系, 教授 (60162278)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Project Status: Completed (Fiscal Year 2015)
• Budget Amount: ¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000); Fiscal Year 2015: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000); Fiscal Year 2014: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000); Fiscal Year 2013: ¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
• Keywords: 呼吸同期 / 腫瘍追跡 / 呼吸コーチング / 放射線治療 / 陽子線治療

Outline of Final Research Achievements

We proposed the new method that improves X-ray fluoroscopic tumor tracking accuracy. This proposed method learns the template image by masking bone structure in X-ray fluoroscopic tumor image. The tumor tracking accuracy was compared between the proposed method and the conventional template learning method. The proposed method had a good accuracy even though the difficult condition that the tumor shape was unclear due to overlapped bone structures. We also completed making the respiratory coaching system for feeding back a tumor tracking information by X-ray fluoroscopic image. However, clinical trials has not carry out because it is very complicated work for mask processing of bone structure information.

Research Products

• [Presentation] プロジェクションマッピングによるBNCT用患者位置合 わせの基本機能開発 (2015)
  • Author(s): 照沼利之
  • Organizer: 第110回日本医学物理学会学術大会
  • Place of Presentation: 北海道大学医学部学友会館フラテ
  • Year and Date: 2015-09-18
• [Presentation] 陽子線のSOBP中心におけるIP応答感度の角度依存性
  • Author(s): 神澤 聡、納冨 昭弘、照沼 利之、榮 武二
  • Organizer: 第106回日本医学物理学会学術大会
  • Place of Presentation: 大阪
• [Presentation] 陽子線治療における呼吸性移動の線量分布への影響 -スキャニングの方向依存性-
  • Author(s): 神澤 聡、榮 武二、照沼 利之、布施 拓
  • Organizer: 第105回日本医学物理学会学術大会
  • Place of Presentation: 横浜