埃塞俄比亚成人腹部盆腔计算机断层扫描检查的国家推荐诊断参考水平。

Recommended National diagnostic reference levels for adult abdomino-pelvic computed tomography examinations in Ethiopia.

作者信息

Mekonnen Solomon Getachew, Dellie Seife Teferi, Nguse Teklehaimanot Mezgebe, Solomon Daniel Zewdneh

机构信息

Department of Technology and Innovation Management Office of Graduate Studies, Adama Science and Technology University, Adama, Ethiopia.

Department of Radiology, College of Health Sciences, Addis Ababa University, Addis Ababa, Ethiopia.

出版信息

BMC Med Imaging. 2025 May 19;25(1):172. doi: 10.1186/s12880-025-01702-4.

DOI:10.1186/s12880-025-01702-4

PMID:40389862

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC12090618/

Abstract

BACKGROUND

Computed Tomography (CT) plays a crucial role for diagnostic purpose; however, delivering optimal radiation dose to patients is the common challenge.

OBJECTIVE

The main objective of this study was to establish abdomino-pelvic national diagnostic reference levels (NDRL) in Ethiopia.

METHODS

A quantitative cross-sectional study design was employed in 23 health facilities. A total of 800 abdomino-pelvic CT scans of patients were evaluated from January, 2023 to March, 2024. Scan parameters, patient profile and CT dose describers were collected using a structured data collection format. Third quartile median values of the volumetric CT dose index (CTDI) and total dose length product (TDLP) were calculated using Microsoft Excel 2016 and SPSS software version 26. Finally, the results were compared with national, regional, and international DRL.

RESULT

The third quartile values obtained from the median values of TDLP and CTDI that were used as NDRL were 1387 mGy.cm and 10.5 mGy, respectively. This study found the highest and lowest median TDLP values of 3370mGy.cm and 273.7mGy.cm respectively.

CONCLUSION

The authors of this manuscript recommend that the NDRLs presented in this document can be used as a baseline against which hospitals future CT abdomino-pelvic median dose describers in Ethiopia can be compared.

摘要

背景

计算机断层扫描（CT）在诊断中起着至关重要的作用；然而，为患者提供最佳辐射剂量是一个常见的挑战。

目的

本研究的主要目的是在埃塞俄比亚建立腹部盆腔国家诊断参考水平（NDRL）。

方法

在23家医疗机构采用定量横断面研究设计。从2023年1月至2024年3月，共评估了800例患者的腹部盆腔CT扫描。使用结构化数据收集格式收集扫描参数、患者资料和CT剂量描述符。使用Microsoft Excel 2016和SPSS软件版本26计算容积CT剂量指数（CTDI）和总剂量长度乘积（TDLP）的第三四分位数中位数。最后，将结果与国家、地区和国际DRL进行比较。