Kuipers Gerritjan, Velders Xandra L
Academic Medical Centre (AMC), Amsterdam, The Netherlands.
Radiat Prot Dosimetry. 2009 Sep;136(2):95-100. doi: 10.1093/rpd/ncp155. Epub 2009 Aug 17.
The exposure of 11 physicians performing interventional procedures was measured by means of two personal dosemeters. One personal dosemeter was worn outside the lead apron and an additional under the lead apron. The study was set up in order to determine the added value of a dosemeter worn under the lead apron. With the doses measured, the effective doses of the physicians were estimated using an algorithm for single dosimetry and two algorithms for double dosimetry. The effective doses calculated with the single dosimetry algorithm ranged from 0.11 to 0.85 mSv in 4 weeks. With the double dosimetry algorithms, the effective doses ranged from 0.02 mSv to 0.47 mSv. The statistical analysis revealed no significant differences in the accuracy of the effective doses calculated with single or double dosimetry algorithms. It was concluded that the effective dose cannot be considered a more accurate estimate when two dosemeters are used instead of one.
通过两个个人剂量计测量了11名进行介入操作的医生所接受的辐射剂量。一个个人剂量计佩戴在铅围裙外，另一个则佩戴在铅围裙下。开展这项研究是为了确定佩戴在铅围裙下的剂量计的附加价值。根据测量的剂量，使用单剂量测定算法和两种双剂量测定算法估算医生的有效剂量。用单剂量测定算法计算出的有效剂量在4周内为0.11至0.85毫希沃特。使用双剂量测定算法时，有效剂量范围为0.02毫希沃特至0.47毫希沃特。统计分析表明，单剂量测定算法和双剂量测定算法计算出的有效剂量准确性没有显著差异。得出的结论是，使用两个剂量计而非一个剂量计时，有效剂量并不能被认为是更准确的估计值。
