Serbian Institute of Occupational Health "Dr Dragomir Karajovic", Belgrade, Serbia.
Department of Kruševac, Shumadia Academy of Professional Studies, Kruševac, Serbia.
Dentomaxillofac Radiol. 2021 Dec 1;50(8):20210117. doi: 10.1259/dmfr.20210117. Epub 2021 Jul 20.
The aim of this paper is to determine the empirical formula for calculating the incident air kerma (Ki), used as a patient dose descriptor in the intraoral radiographic imaging.
The data for the formula were collected during the regular annual inspection of intraoral dental X-ray units in 2018, 2019 and early 2020. The measurement data of 50 X-ray units were processed to develop the formula. Exposure factors for imaging molars of the upper jaw of an average patient in a clinical setting were used in the measurement. The formula validity was statistically evaluated using coefficient of correlation, standard error of the fitted function and the mean relative percentage deviation.
The measurement values of the radiation doses and calculated values obtained by using the final formula showed good agreement - the mean relative percentage deviation values less than ±15%.
Although there are differences in X-ray units, voltages, manufacturers and device architectures (single-phase and high-frequency), the measurement data comply well with computed ones in all cases.
本文旨在确定用于口腔内放射成像的入射空气比释动能（Ki）的计算公式，该值可用作患者剂量描述符。
该公式的数据是在 2018 年、2019 年和 2020 年初对口腔牙科 X 射线设备进行常规年度检查期间收集的。对 50 个 X 射线设备的测量数据进行处理以开发公式。在测量中使用了在临床环境中对上颌磨牙成像的典型患者的成像参数。使用相关系数、拟合函数的标准误差和平均相对百分比偏差来对公式的有效性进行统计评估。
辐射剂量的测量值和使用最终公式计算的值显示出良好的一致性 - 平均相对百分比偏差值小于±15%。
尽管 X 射线设备、电压、制造商和设备架构（单相和高频）存在差异，但在所有情况下，测量数据都与计算数据很好地吻合。
