Real-time tumor-tracking radiotherapy system with monoscocpic imaging system

2013 Fiscal Year Final Research Report

• Project/Area Number: 24791258
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Radiation science
• Research Institution: Hokkaido University
• Principal Investigator: MIYAMOTO Naoki 北海道大学, 医学(系)研究科(研究院), 特任助教 (00552879)
• Project Period (FY): 2012-04-01 – 2014-03-31
• Keywords: 4次元放射線治療 / 動体追跡放射線治療 / X線透視 / 被曝低減

Research Abstract

In this study, the novel monoscopic imaging system that can be utilized for gated-radiotherapy is proposed. The proposed system can reduce imaging dose due to pulsed fluoroscopy during treatment and can realize compact system. It was shown that the measurement error of the proposed technique was within acceptable level in most cases by performing the evaluations with actual marker positions and actual marker trajectories. In addition, the measurement error can be minimized by optimizing imaging geometry. As a result, the feasibility for clinical use was shown.

Research Products

• [Presentation] 3 点の体内マーカーを用いた患者セットアップの有効性評価 (2014)
  • Author(s): 加藤英斗, 宮本直樹, 大友加奈子, 鈴木隆介, 西岡健太郎, 清水伸一, 鬼丸力也, 石川正純, 白土博樹
  • Organizer: 第27回日本高精度外部照射研究会
  • Place of Presentation: 東京
  • Year and Date: 2014-02-22
• [Presentation] Evaluation of the measurement accuracy of a novel monoscopic x-ray imaging system for real-time tumor-tracking radiotherapy (2013)
  • Author(s): Naoki Miyamoto, Masayori Ishikawa, Kenneth Sutherland, Ryusuke Suzuki, Taeko Matsuura, Seishin Takao, Chie Toramatsu, Hideaki Nihongi, Shinichi Shimizu, Kikuo Umegaki, Hiroki Shirato
  • Organizer: 4D (Treatment Planning) workshop
  • Place of Presentation: PSI Switzerland
  • Year and Date: 20131128-29
• [Presentation] 動体迎撃照射の現状と未来 (2013)
  • Author(s): 宮本直樹
  • Organizer: 日本放射線腫瘍学会第26回学術大会 シンポジウム
  • Place of Presentation: 青森
  • Year and Date: 20131018-20
• [Presentation] Real-time tumor-tracking radiotherapy system with mono X-ray fluoroscopy (2013)
  • Author(s): Naoki Miyamoto, Masayori Ishikawa, Kenneth Sutherland, Ryusuke Suzuki, Taeko Matsuura, Seishin Takao, Chie Toramatsu, Hideaki Nihongi, Shinichi Shimizu, Kikuo Umegaki, Hiroki Shirato
  • Organizer: 第105回日本医学物理学会
  • Place of Presentation: 横浜
  • Year and Date: 20130411-14
• [Presentation] 一方向X 線透視による低被曝・省スペース型動体追跡装置の開発 (2012)
  • Author(s): 宮本直樹, 石川正純, Kenneth Sutherland, 鈴木隆介, 松浦妙子, 高尾聖心, 寅松千枝, 二本木英明, 清水伸一, 梅垣菊男, 白土博樹
  • Organizer: 第104回日本医学物理学会学術大会
  • Place of Presentation: つくば
  • Year and Date: 20120913-15