使用C型臂X射线系统测量骨科手术期间晶状体所受辐射剂量

MEASUREMENT OF RADIATION DOSES TO THE EYE LENS DURING ORTHOPEDIC SURGERY USING AN C-ARM X-RAY SYSTEM.

作者信息

Suzuki Akira, Matsubara Kosuke, Sasa Yuko

机构信息

Department of Radiology, Japanese Red Cross Sendai Hospital, 2-43-3 Yagiyama Honcho, Sendai, Miyagi 982-8501, Japan.

Department of Quantum Medical Technology, Faculty of Health Sciences, Kanazawa University, 5-11-80 Kodatsuno, Kanazawa, Ishikawa 920-0942, Japan.

出版信息

Radiat Prot Dosimetry. 2018 Apr 1;179(2):189-195. doi: 10.1093/rpd/ncx250.

DOI:10.1093/rpd/ncx250

PMID:29136218

Abstract

The present study aimed to determine doses delivered to the eye lenses of surgeons while using the inverted-C-arm technique and the protective effect of leaded spectacles during orthopedic surgery. The kerma in air was measured at five positions on leaded glasses positioned near the eye lens and on the neck using small optically stimulated luminescence (OSL) dosemeters. The lens equivalent dose was also measured at the neck using an OSL dosemeter. The maximum equivalent dose to the eye lens and the maximum kerma were 0.8 mSv/month and 0.66 mGy/month, respectively. The leaded glasses reduced the exposure by ~60%. Even if the surgeons are exposed to the maximum dose of X-ray radiation for 5 years, the equivalent doses to the eye lens will not exceed the present limit recommended by the ICRP.

摘要

本研究旨在确定外科医生在使用倒C形臂技术进行骨科手术时眼部晶状体所接受的剂量，以及含铅眼镜的防护效果。使用小型光激发发光（OSL）剂量仪在靠近眼部晶状体的含铅眼镜以及颈部的五个位置测量空气中的比释动能。还使用OSL剂量仪在颈部测量晶状体当量剂量。眼部晶状体的最大当量剂量和最大比释动能分别为0.8 mSv/月和0.66 mGy/月。含铅眼镜使辐射暴露降低了约60%。即使外科医生在5年内接受最大剂量的X射线辐射，眼部晶状体的当量剂量也不会超过国际辐射防护委员会（ICRP）目前推荐的限值。