Manousaridis G, Koukorava C, Hourdakis C J, Kamenopoulou V, Yakoumakis E, Tsiklakis K
Greek Atomic Energy Commission National and Kapodistrian University of Athens, Athens, Greece
Greek Atomic Energy Commission National and Kapodistrian University of Athens, Athens, Greece.
Radiat Prot Dosimetry. 2015 Jul;165(1-4):111-4. doi: 10.1093/rpd/ncv088. Epub 2015 Apr 1.
The purpose of the present study was to present the national diagnostic reference levels (DRL) established for panoramic dental examinations in Greece. The establishment of DRL, as a tool for the optimisation of radiological procedures, is a requirement of national regulations. Measurements performed by the Greek Atomic Energy Commission on 90 panoramic systems have been used for the derivation of DRL values. DRL values have been proposed for exposure settings of different patient types (child, small adult and standard adult), both for film and digital imaging. The DRLs for different patient types are grouped in three categories: children, small adults (corresponding to female) and average adults (corresponding to male). Proposed DRLs for these groups are 2.2, 3.3 and 4.1 mGy, respectively. In order to investigate the correlation of DRLs with the available imaging modalities (CR, DR and film), this parameter was taken into account. DR imaging DRL is the lowest at 3.5 mGy, CR imaging the highest at 4.2 mGy and film imaging at 3.7 mGy. In order to facilitate comparison with other studies, kerma-width product values were calculated from Ki, air and field size.
本研究的目的是介绍希腊为全景牙科检查制定的国家诊断参考水平（DRL）。作为优化放射程序的一种工具，制定DRL是国家法规的要求。希腊原子能委员会对90台全景系统进行的测量已用于推导DRL值。已针对不同患者类型（儿童、小个子成年人和标准成年人）的曝光设置提出了DRL值，包括胶片成像和数字成像。不同患者类型的DRL分为三类：儿童、小个子成年人（对应女性）和平均成年人（对应男性）。这些组的建议DRL分别为2.2、3.3和4.1毫戈瑞。为了研究DRL与可用成像模式（CR、DR和胶片）之间的相关性，考虑了该参数。DR成像的DRL最低，为3.5毫戈瑞，CR成像最高，为4.2毫戈瑞，胶片成像为3.7毫戈瑞。为便于与其他研究进行比较，根据空气比释动能率（Ki）、空气和射野大小计算了比释动能-宽度乘积值。
