General-purpose modeling of CT radiation source and sophistication of organ exposure dose evaluation system WAZA-ARI

2017 Fiscal Year Final Research Report

• Project/Area Number: 16K19873
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Radiation science
• Research Institution: National Institutes for Quantum and Radiological Science and Technology
• Principal Investigator: Koba Yusuke 国立研究開発法人量子科学技術研究開発機構, 放射線医学総合研究所 放射線防護情報統合センター, 主任研究員(定常) (10583073)
• Project Period (FY): 2016-04-01 – 2018-03-31
• Keywords: 医療被ばく / CT / 線量評価 / WAZA-ARI

Outline of Final Research Achievements

Web system "WAZA-ARI" which can evaluate patient exposure dose in CT imaging is a free medical exposure assessment tool. However, in this system, it was a problem that the available CT apparatuses are limited. In this research, in order to calculate dose for arbitrary CT apparatus in WAZA-ARI system, we analyzed source model of many existing CT apparatus and developed general purpose source models and calculation method. By installing and disclosing the developed source model and calculation method in the WAZA-ARI system, it became possible for the WAZA-ARI system user to evaluate the patient exposure dose in an arbitrary CT apparatus.

Free Research Field

医学物理