Pugliese Mariagabriella, Amatiello Antonia, Correra Marco, Stoia Vincenzo, Cerciello Vincenzo, Roca Vincenzo, Loffredo Filomena, Fiore Francesco, La Verde Giuseppe
Dipartimento di Fisica, Università degli Studi di Napoli Federico II.
Med Lav. 2018 Dec 20;109(6):471-477. doi: 10.23749/mdl.v110i6.7286.
Following recent epidemiological studies, which showed tissue reactions from ionizing radiation at significantly lower doses, the 2013/59 EURATOM Directive of 5th December 2013 lowered the limit on the equivalent dose to the eye lens from 150 mSv to 20 mSv per year. Therefore, as a precautionary measure, it is considered appropriate to perform a timely dose monitoring by using specific dosimeters.
Analysis of the current state of the eye lens exposures during interventional procedures. The survey aimed at assessing the degree of information available to the exposed workers as regards lowering the dose limit in Interventional Radiology departments of some hospitals in Campania (Southern Italy).
The equivalent dose was assessed, over a period of 90 days, using specific Hp dosimeters(3), placed sideways with regard to prescription eye glasses. The level of awareness of the new dose limit among operators was assessed using a questionnaire.
The values of the equivalent dose to the lens of the eye for the I and II Operators were found to be <150 mSv/year but for the I Operator a value of 54 mSv/year was obtained, ie higher than 20 mSv/year, that is the new limit of the equivalent dose according to 2013/59 EURATOM. The initial results of the questionnaire from 52 exposed workers, of which 46 (88%) were from exposure category A and 6 (12%) from category B, showed a low level of information (19%).
The results highlight not only the importance of using specific devices for individual protection but also the importance of the level of training and information the exposed medical staff are given concerning the new regulations.
近期流行病学研究表明，在显著更低剂量下就能出现电离辐射的组织反应，因此2013年12月5日的2013/59号欧盟原子指令将眼晶状体的当量剂量限值从每年150毫希沃特降至20毫希沃特。所以，作为一项预防措施，使用特定剂量计及时进行剂量监测被认为是恰当的。
分析介入操作过程中眼晶状体受照情况的现状。该调查旨在评估意大利南部坎帕尼亚大区一些医院介入放射科的受照工作人员在剂量限值降低方面所掌握的信息程度。
在90天的时间段内，使用特定的Hp剂量计（3）评估当量剂量，剂量计放置在与处方眼镜侧面相对的位置。通过问卷调查评估操作人员对新剂量限值的知晓程度。
发现I类和II类操作人员眼晶状体的当量剂量值<150毫希沃特/年，但I类操作人员的当量剂量值为54毫希沃特/年，即高于20毫希沃特/年，这是根据2013/59号欧盟原子指令的新当量剂量限值。对52名受照工作人员进行问卷调查的初步结果显示，其中46人（88%）属于A类受照人员，6人（12%）属于B类受照人员，知晓信息的比例较低（19%）。
结果不仅凸显了使用特定个体防护设备的重要性，还凸显了对受照医务人员进行有关新法规的培训和信息告知水平的重要性。
