Département de Physique Médicale, Centre de Recherche Nucléaire d'Alger, Algiers, Algeria.
Konstantopoulio General Hospital, Medical Physics Department, Athens, Greece.
Radiat Prot Dosimetry. 2020 Oct 16;190(4):364-371. doi: 10.1093/rpd/ncaa116.
A pilot study has concerned the most frequent computed tomography examinations (CT). This represents the first results based on actual survey for diagnostic reference levels (DRLs) establishment in Algeria. A total number of 2540 patients underwent this survey that has included the recording of CT parameters, computed tomography dose index (CTDIvol) and dose-length product of the head, thorax, abdomen, abdomen-pelvis (AP), lumbar spine (LS) and thorax-abdomen-pelvis (TAP) performed on standard patients. The proposed DRLs are 71 mGy/1282 mGy.cm for head, 16 mGy/555 mGy.cm for thorax, 18 mGy/671 mGy.cm for abdomen, 21 mGy/950 mGy.cm for AP, 36 mGy/957 mGy.cm for LS and 18 mGy/994 mGy.cm for TAP. The rounded 75th percentile seems to be higher in some examinations compared to the literature. Our findings confirm the need to optimise our practice. These results provide a starting point for institutional evaluation of CT radiation doses.
一项初步研究涉及最常见的计算机断层扫描检查（CT）。这是根据在阿尔及利亚建立诊断参考水平（DRL）的实际调查得出的第一批结果。共有 2540 名患者接受了这项调查，包括记录 CT 参数、计算机断层扫描剂量指数（CTDIvol）以及头部、胸部、腹部、腹部-骨盆（AP）、腰椎（LS）和胸部-腹部-骨盆（TAP）的剂量长度乘积，这些都是在标准患者身上进行的。建议的 DRL 为头部 71 mGy/1282 mGy.cm、胸部 16 mGy/555 mGy.cm、腹部 18 mGy/671 mGy.cm、AP 21 mGy/950 mGy.cm、LS 36 mGy/957 mGy.cm 和 TAP 18 mGy/994 mGy.cm。与文献相比，某些检查中的四舍五入 75 百分位似乎更高。我们的发现证实了需要优化我们的实践。这些结果为机构对 CT 辐射剂量的评估提供了起点。
