Jose Amal, Kumar A Saravana, Govindarajan K N, Manimaran P
Department of Medical Physics, PSG Institute of Medical Sciences and Research, Coimbatore, Tamil Nadu, India.
J Med Phys. 2020 Jul-Sep;45(3):182-186. doi: 10.4103/jmp.JMP_106_19. Epub 2020 Oct 13.
The current work aims to calculate dose area product (DAP) and to determine regional diagnostic reference level (DRL) for pediatric panoramic radiography in Tamil Nadu.
In this study, DAP was calculated after finding the product of air kerma on the detector side of scanner with the corresponding exposed area. The obtained DAP values were further analyzed, and DRL was calculated using Microsoft Excel. The study was carried out with routine pediatric exposure parameters.
The obtained mean, range, and third quartile values for pediatric panoramic radiography are found to be 65 mGycm, 11-148 mGycm, and 82 mGycm, respectively. The proposed DRL is comparable with the other countries' DRL.
Based on the results of the present study, it was observed that there exists a wide difference in mean doses among the panoramic scanners. The variation in radiation doses between the clinics/hospitals and similar scanners suggests a large potential for optimization of panoramic procedures.
当前工作旨在计算剂量面积乘积（DAP），并确定泰米尔纳德邦儿科全景X线摄影的区域诊断参考水平（DRL）。
在本研究中，通过将扫描仪探测器侧的空气比释动能与相应的照射面积相乘来计算DAP。对获得的DAP值进行进一步分析，并使用Microsoft Excel计算DRL。该研究采用常规儿科曝光参数进行。
儿科全景X线摄影获得的平均、范围和第三四分位数分别为65 mGycm、11 - 148 mGycm和82 mGycm。所提出的DRL与其他国家的DRL相当。
基于本研究结果，观察到全景扫描仪之间的平均剂量存在很大差异。诊所/医院与类似扫描仪之间辐射剂量差异表明全景检查程序有很大的优化潜力。
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