Alcaraz M, Velasco F, Martínez-Beneyto Y, Alcaraz-Saura M, Velasco E, Achel G D, Canteras M
Department of Radiology and Physical Medicine, University of Murcia, Campus Espinardo, Murcia, Spain.
Radiat Prot Dosimetry. 2012 Aug;151(1):166-71. doi: 10.1093/rpd/ncr467. Epub 2012 Jan 20.
A total of 16 175 official reports of quality assurance on dental radiodiagnostic surgeries from 16 Spanish autonomous regions compiled during 2002-09 were studied to determine the evolution of diagnostic reference levels (DRLs) for obtaining a diagnostic image in the normal conditions of clinical practice in Spanish dental clinics. A DRL of 3.1 mGy was set in 2009, which represents a 35.4 % decrease compared with the dose determined in 2002 (4.8 mGy). During the same period, the mean dose fell by only 17.2 %. The DRL recommended by the European Union in 2004 for intraoral radiology is 4 mGy, and this study shows that 83.4 % of the installations used a dose below this. Of the installations using indirect or direct digital systems 1.1 and 1.2 %, respectively, used doses higher than those recommended, while 14.2 % of those using radiographic film exceeded this limit.
为了确定西班牙牙科诊所临床实践正常条件下获取诊断图像的诊断参考水平（DRL）的演变情况，研究人员对2002年至2009年期间从西班牙16个自治区收集的16175份牙科放射诊断手术质量保证官方报告进行了研究。2009年设定的DRL为3.1毫西弗，与2002年确定的剂量（4.8毫西弗）相比下降了35.4%。在同一时期，平均剂量仅下降了17.2%。欧盟2004年推荐的口腔放射学DRL为4毫西弗，这项研究表明，83.4%的设备使用的剂量低于此值。在使用间接或直接数字系统的设备中，分别有1.1%和1.2%使用的剂量高于推荐剂量，而使用X线胶片的设备中有14.2%超过了这一限制。
