Study on a comprehensive radiation exposure management protocol for measuring patient entrance doses in cardiac interventional procedures and cardiac computed tomography.

2014 Fiscal Year Final Research Report

• Project/Area Number: 24601002
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: 医学物理学・放射線技術学
• Research Institution: Tohoku University
• Principal Investigator: KATO Mamoru 東北大学, 医学(系)研究科(研究院), 非常勤講師 (10595573)
• Co-Investigator(Kenkyū-buntansha): CHIDA Koichi 東北大学, 災害科学国際研究所, 教授 (20323123) ; MORITAKE Takashi 産業医科大学, 付置研究所, 准教授 (50450432)
• Research Collaborator: SATO Tadaya 会津中央病院, 循環器病センター, 所長 ; ABE Yosjihisa , 秋田県立脳血管研究センター, 副センター長
• Project Period (FY): 2012-04-01 – 2015-03-31
• Keywords: 放射線障害 / インターベンション / 冠動脈CT / 線量測定 / 被曝管理 / 最大皮膚線量 / 蛍光ガラス線量計 / 診断参考レベル

Outline of Final Research Achievements

Interventional cardiology, such as percutaneous coronary intervention (PCI), are increasingly being adopted in the treatments for coronary artery disease. Unfortunately, several cases of skin injury caused by radiation exposure are still being reported in association with PCIs. Furthermore, coronary computed tomography (CT), which is a promising non-invasive technique for the detection of coronary stenosis, is increasingly utilized for the preoperative examination and postoperative assessment of PCI. Compared to other CT examinations, coronary CT examinations deliver a higher dose. In addition, many CT protocols do not provide a method for evaluating the patient entrance skin dose. Thus, high radiation doses may have deterministic effects. Using multiple radiophotoluminescence glass dosimeters with a modified dosimetry gown to measuring the entrance skin doses in PCI and coronary CT, we developed a comprehensive radiation exposure management protocol to prevent radiation skin injuries.

Free Research Field

放射線防護