PDF(Pubmed)
Abstract：
UNASSIGNED: X-ray Computed Tomography dose levels have been varying among modalities and scanning body regions due to the absence of incessant routine follow-up. Thus, the study aimed to compute the dose index discrepancies in Ethiopia for the most recurring scan protocols (head, chest, abdomen, and pelvis).
UNASSIGNED: A purposive sampling method was employed to select the hospitals due to the rare existence of functional CT scanners in Ethiopia. From the selected hospitals, a total of 1,385 (249 heads, 804 chests, 132 abdomens, and 200 pelvis) were collected in terms of standard dose metric values in the period of December 2019-March 2020. Patients\' DLP was computed into mean value using IBM SPSS Statistics 20 software. From the mean DLP, we can compute the effective dose.
UNASSIGNED: Patients\' dose level disparity was observed in this study though it is below the ICRP standard level for all body regions except for pelvis DLP (593.37 mGy-cm) at Black Lion. The dose level for the head and chest are computed within the recommended level at all hospitals. Effective doses for the pelvis at four hospitals (Teklehaimanot, Black Lion, ALERT, Paul\'s, and Ayder hospitals) were computed as 6.45, 8.90, 5.08, 6.54, and 6.84 mSv respectively, and the effective doses for abdomen at Ayder Hospital was obtained to be 8.90 mSv, which is above the recommended value.
UNASSIGNED: X-ray CT scanners are somewhat properly functioning although some sort of justification and optimization for pelvis and abdomen examinations are strongly recommended to implement as low as reasonably achievable principle.
UNASSIGNED: A purposive sampling method was employed to select the hospitals due to the rare existence of functional CT scanners in Ethiopia. From the selected hospitals, a total of 1,385 (249 heads, 804 chests, 132 abdomens, and 200 pelvis) were collected in terms of standard dose metric values in the period of December 2019-March 2020. Patients\' DLP was computed into mean value using IBM SPSS Statistics 20 software. From the mean DLP, we can compute the effective dose.
UNASSIGNED: Patients\' dose level disparity was observed in this study though it is below the ICRP standard level for all body regions except for pelvis DLP (593.37 mGy-cm) at Black Lion. The dose level for the head and chest are computed within the recommended level at all hospitals. Effective doses for the pelvis at four hospitals (Teklehaimanot, Black Lion, ALERT, Paul\'s, and Ayder hospitals) were computed as 6.45, 8.90, 5.08, 6.54, and 6.84 mSv respectively, and the effective doses for abdomen at Ayder Hospital was obtained to be 8.90 mSv, which is above the recommended value.
UNASSIGNED: X-ray CT scanners are somewhat properly functioning although some sort of justification and optimization for pelvis and abdomen examinations are strongly recommended to implement as low as reasonably achievable principle.
摘要：
■由于没有持续的常规随访，X射线计算机断层扫描剂量水平在不同的模式和扫描身体区域之间存在差异。因此，该研究旨在计算埃塞俄比亚最重复扫描协议的剂量指数差异(头部，胸部，腹部，和骨盆）。
■由于埃塞俄比亚很少存在功能性CT扫描仪，因此采用了有目的的抽样方法来选择医院。从选定的医院，总计1,385（249头，804个箱子,132腹部，和200骨盆）在2019年12月至2020年3月期间以标准剂量度量值收集。使用IBMSPSSStatistics20软件将患者的DLP计算为平均值。从平均DLP来看，我们可以计算出有效剂量。
在这项研究中观察到患者的剂量水平差异，尽管它低于所有身体区域的ICRP标准水平，但黑狮的骨盆DLP（593.37mGy-cm）除外。头部和胸部的剂量水平在所有医院的推荐水平内计算。四家医院的骨盆有效剂量(Teklehaimanot，黑狮子,警报,Paul\'s,和艾德医院)分别计算为6.45、8.90、5.08、6.54和6.84mSv，艾德医院的腹部有效剂量为8.90mSv，高于推荐值。
■X射线CT扫描仪在一定程度上正常运行，尽管强烈建议对骨盆和腹部检查进行某种证明和优化，以尽可能低的合理实现原则。
■由于埃塞俄比亚很少存在功能性CT扫描仪，因此采用了有目的的抽样方法来选择医院。从选定的医院，总计1,385（249头，804个箱子,132腹部，和200骨盆）在2019年12月至2020年3月期间以标准剂量度量值收集。使用IBMSPSSStatistics20软件将患者的DLP计算为平均值。从平均DLP来看，我们可以计算出有效剂量。
在这项研究中观察到患者的剂量水平差异，尽管它低于所有身体区域的ICRP标准水平，但黑狮的骨盆DLP（593.37mGy-cm）除外。头部和胸部的剂量水平在所有医院的推荐水平内计算。四家医院的骨盆有效剂量(Teklehaimanot，黑狮子,警报,Paul\'s,和艾德医院)分别计算为6.45、8.90、5.08、6.54和6.84mSv，艾德医院的腹部有效剂量为8.90mSv，高于推荐值。
■X射线CT扫描仪在一定程度上正常运行，尽管强烈建议对骨盆和腹部检查进行某种证明和优化，以尽可能低的合理实现原则。
