Development of 4D Monte Carlo dose calculation system for intensity modulated dynamic tumor-tracking radiotherapy

Research Project

Project/Area Number	25893110
Research Category	Grant-in-Aid for Research Activity Start-up
Allocation Type	Single-year Grants
Research Field	Radiation science
Research Institution	Kyoto University
Principal Investigator	ISHIHARA Yoshitomo 京都大学, 医学(系)研究科(研究院), 特定職員(医学物理) (60709351)
Project Period (FY)	2013-08-30 – 2015-03-31
Project Status	Completed (Fiscal Year 2014)
Budget Amount *help	¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000) Fiscal Year 2014: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000) Fiscal Year 2013: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywords	モンテカルロ法 / 動体追尾照射 / 強度変調照射 / 動体追尾 / 線量計算 / 4次元放射線治療
Outline of Final Research Achievements	The purpose of this study was to develop a new 4D dose calculation system for intensity modulated dynamic tumor-tracking radiotherapy (IM-DTRT). Dose calculation was performed using ten phase CT with the x-ray head rotated by the corresponding angle for pancreas IM-DTRT. The mean dose differences between the IM-DTRT and the conventional plans for stomach and duodenum were approximately 40% and 20%. The dynamic tumor-tracking plan can reduce organs at risk dose with high dose prescription for the target.

Report

(3 results)