Zagorska A, Romanova K, Hristova-Popova J, Vassileva J, Katzarov K
National Centre of Radiobiology and Radiation Protection, Sofia, Bulgaria; Medical University, Sofia, Bulgaria.
Military Medical Academy, Sofia, Bulgaria.
Phys Med. 2015 Nov;31(7):781-4. doi: 10.1016/j.ejmp.2015.03.011. Epub 2015 May 1.
The paper presents a study of the radiation doses to eye lens of medical staff during endoscopic retrograde cholangiopancreatography (ERCP) procedures performed in a busy gastroenterology department. For each procedure the dose equivalent to the eye, exposure time, dose rate, Kerma Area Product and fluoroscopy time were recorded. Measurements were performed for a period of two months in four main positions of the operating staff, and then extrapolated to estimate annual doses. The fluoroscopy time per ERCP procedure varied between 1.0 min and 28.8 min, with a mean value of 4.6 min. The calculated mean eye dose per procedure varied between 34.9 μSv and 93.3 μSv. The results demonstrated that if eye protection is not used, annual doses to the eye lens of the gastroenterologist performing the procedure and the anesthesiologist can exceed the dose limit of 20 mSv per year.
本文介绍了一项针对繁忙的胃肠病科进行内镜逆行胰胆管造影术（ERCP）时医护人员眼晶状体所受辐射剂量的研究。对于每一例手术，均记录了眼的剂量当量、照射时间、剂量率、比释动能面积乘积和透视时间。在两个月的时间里，对手术人员的四个主要位置进行了测量，然后外推以估算年剂量。每例ERCP手术的透视时间在1.0分钟至28.8分钟之间，平均值为4.6分钟。计算得出的每例手术平均眼剂量在34.9μSv至93.3μSv之间。结果表明，如果不使用眼部防护措施，进行该手术的胃肠病学家和麻醉师的眼晶状体年剂量可能超过每年20mSv的剂量限值。
