Establishment of novel dose distribution analysis method considering dose gradient

2017 Fiscal Year Final Research Report

• Project/Area Number: 15H04767
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Medical Physics and Radiological Technology
• Research Institution: Hokkaido University
• Principal Investigator: Ishikawa Masayori 北海道大学, 保健科学研究院, 教授 (80314772)
• Co-Investigator(Renkei-kenkyūsha): SUZUKI Ryusuke 北海道大学病院, 助教 (00400052) ; HASHIMOTO Masatoshi がん研究会, 有明病院, 医学物理士 (40375845)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Keywords: Gradient法 / 統計学的判定基準 / 線量分布解析 / 高精度放射線治療

Outline of Final Research Achievements

The purpose of this study is to establish the Gradient method which is a new analysis method considering the dose gradient as a dose distribution evaluation method using film in radiation therapy. Generally, since radiation measurement follows Poisson statistics, we proposed a statistical based judgment criterion. In order to make statistical evaluation possible, we developed a method to evaluate uncertainty caused by measurement and misalignment, and verified by actual measurement at multiple facilities.

Free Research Field

放射線計測学