Data were collected from 642 orthopaedic interventions during which the images produced by X-rays were recorded. By examining these images, it is possible to determine the time that the orthopaedic surgeons' hands were exposed to the direct radiation beam. The procedures with greater exposure to the direct beam were those involving the hand (median 15 s) and the wrist (median 13 s). Two surgeons wore a ring to measure the absorbed dose at the fingers: one on the dominant hand and the other on the non-dominant hand. The two surgeons performed 34 and 48 operations, respectively, in 14 months. The total doses measured with the rings were 2.30 and 1.04 mSv, respectively. The images of the interventions were examined, determining how much each individual hand was exposed. The interventional reference point (IRPeff (left or right)) was calculated by comparing the doses at the IRP with the exposure times of the right or the left hand. Summing the IRPeff of the two surgeons in 14 months, it is obtained the maximum values of 2.87 mGy for the left hand of one and 6.74 mGy for the right hand of the other, which are of the order of 1/100 of the annual dose limit for the extremities.

中文翻译：

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使用存储的图像在荧光检查过程中评估骨科手术患者的放射剂量。

从642例整形外科手术中收集数据，在此期间记录了X射线产生的图像。通过检查这些图像，可以确定骨科医生的手暴露于直接辐射束的时间。暴露于直射光下的程序较多，涉及手（中位15 s）和手腕（中位13 s）。两名外科医生戴着戒指测量手指吸收的剂量：一只在显性手上，另一只在非显性手上。两名外科医生在14个月内分别进行了34次和48次手术。用环测量的总剂量分别为2.30和1.04 mSv。检查干预的图像，确定每只手暴露了多少。干预参考点（IRPeff（左或右））是通过将IRP的剂量与右手或左手的暴露时间进行比较来计算的。总结两个医生在14个月内的IRPeff，得出一个左手的最大值为2.87 mGy，另一个右手的最大值为6.74 mGy，约为年剂量的1/100。四肢极限。