苏丹人群行胸部-腹部-骨盆计算机断层扫描检查的辐射风险评估和诊断参考水平的建立。

ESTIMATION OF RADIATION RISK AND ESTABLISHMENT OF DIAGNOSTIC REFERENCE LEVELS FOR PATIENTS UNDERGOING COMPUTED TOMOGRAPHY CHEST-ABDOMEN-PELVIC EXAMINATIONS IN SUDAN.

机构信息

Radiologic Science Department, National Ribat University, PO Box 407, Khartoum 55, Sudan.

Diagnostic Radiology Department, College of Medical Radiological Sciences, Sudan University of Science and Technology, PO Box 407, Khartoum, Sudan.

出版信息

Radiat Prot Dosimetry. 2021 Nov 3;196(1-2):104-109. doi: 10.1093/rpd/ncab136.

DOI:10.1093/rpd/ncab136

PMID:34528102

Abstract

Establishment of diagnostic reference levels (DRLs) is an essential radiation optimization tool used to indicate optimum practice and radiation protection. This study aimed to report the current computed tomography (CT) of the chest-abdomen-pelvis radiation practice in Sudan as a part of the DRL establishment effort and dose optimization. CT radiation doses were collected from 530 patients of age ranging between 28 and 85 y and body weight ranging between 65 and 120 kg. DRLs were calculated based on the 75th percentile of dose length product (DLP) and CT dose index volume (CTDIvol). Effective and organ doses were calculated using the National Cancer Institute dosimetry system for the CT programme. The proposed DRLs are CTDIvol, 6 mGy, and DLP, 970 mGy.cm, and an effective dose of 9.9 mSv. Organ dose estimation showed that the thyroid received the highest dose during the scan.

摘要

建立诊断参考水平（DRLs）是一种重要的放射优化工具，用于指示最佳实践和放射防护。本研究旨在报告苏丹目前胸部-腹部-骨盆 CT 的放射实践情况，作为建立 DRL 和剂量优化的一部分。从年龄在 28 至 85 岁、体重在 65 至 120 公斤的 530 名患者中收集 CT 辐射剂量。DRLs 是根据剂量长度乘积（DLP）和 CT 剂量指数体积（CTDIvol）的第 75 百分位数计算的。使用国家癌症研究所的 CT 程序剂量系统计算有效剂量和器官剂量。建议的 DRL 是 CTDIvol，6mGy 和 DLP，970mGy.cm，有效剂量为 9.9mSv。器官剂量估计显示，在扫描过程中甲状腺接受的剂量最高。