Development of a system capable of managing the radiation dose for each CT scan protocol

2021 Fiscal Year Final Research Report

• Project/Area Number: 18K10017
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Review Section: Basic Section 58010:Medical management and medical sociology-related
• Research Institution: Kyoto College of Medical Science
• Principal Investigator: MORI Masato 京都医療科学大学, 医療科学部, 教授 (50378767)
• Co-Investigator(Kenkyū-buntansha): 田畑 慶人 京都医療科学大学, 医療科学部, 准教授 (20369656)
• Project Period (FY): 2018-04-01 – 2022-03-31
• Keywords: 医療被ばく管理 / 検査プロトコル / RDSR / SSDE / 始業点検

Outline of Final Research Achievements

This study has developed a system that can store and manage X-ray CT scans and their imaging doses in order to address the issue of medical radiation exposure associated with X-ray CT scans. The features of this system are as follows: (1) it can recognize a scan as long as it is able to ascertain that the details of the scan are the same, even if the names of the scan protocols are different under current circumstances where scan protocols have not been standardized; (2) it allows for the management of imaging doses for each scan protocol; and (3) it utilizes an index of radiation dose that varies depending on the size of the patient’s target region.

Free Research Field

医用画像情報学、医療情報学

Academic Significance and Societal Importance of the Research Achievements

本システムは、(1)RDSR(Radiation Dose Structured Report)未対応のX線CT装置であっても線量管理が可能なこと。(2)撮影線量にSSDEを用いることで体格指標として管理すること。(3)始業点検の管理値と一緒に撮影線量を管理することで撮影画像の品質を担保できることが特徴である。これは、X線CT検査における撮影線量の管理に必要な3つ要素を備えたシステムとしての標準モデルとなるものと確信している。