Evaluation of fetal absorbed doses from computed tomography examinations of pregnant patients: A systematic review

A. Vodovatov, Olga A. Golchenko, I. Mashchenko, Darya V. Alekseeva, L. Chipiga, I. V. Khutornoy, P. V. Kozlova, G. E. Trufanov, P. S. Druzhinina, S. Ryzhov, I. V. Soldatov
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Abstract

BACKGROUND: Currently, no systematic data are available on fetal radiation exposure as a result of radiographic studies during pregnancy. Consequently, there are no approved methods of its calculation that can be used in clinical practice. It is especially relevant for computed tomography scans as it is a widely used and highly informative method of diagnostic imaging associated with high exposure levels. AIM: to systematize currently available data on radiation dose absorbed by the fetus from computed tomography scans in pregnant women. MATERIALS AND METHODS: The search for publications in Russian and English was conducted in PubMed/Medline, Google Scholar and еLibrary. The final analysis included 12 papers including 8 studies using human body phantoms, 3 retrospective studies and one prospective clinical study. RESULTS: Abdominal and pelvic computed tomography scans as well as whole-body scans were found to be associated with the highest fetal radiation exposure. However, in none of the publications the fetal exposure limit was exceeded. CONCLUSION: Clinically indicated non-contrast-enhanced computed tomography scans in pregnant women are not likely to be associated with the fetal absorbed doses that exceed the limit of 100 mGy regardless of the scanned area. However, this limit might be exceeded in case of performing multiple studies or if multiphase abdominal or pelvic computed tomography scans, or whole-body computed tomography scans are performed in patients with multiple trauma. In these cases, a decision regarding the need for these investigations should be made by a multi-disciplinary team (including radiation safety specialists, diagnostic radiologists and clinicians) based on the results of additional risk assessment.
评估胎儿吸收剂量的计算机断层扫描检查孕妇:一个系统的回顾
背景:目前,由于妊娠期间的放射学研究,没有关于胎儿辐射暴露的系统数据。因此,没有可用于临床实践的经批准的计算方法。它与计算机断层扫描特别相关,因为它是一种广泛使用且信息量大的与高暴露水平相关的诊断成像方法。目的:系统化目前可获得的孕妇计算机断层扫描胎儿吸收辐射剂量的数据。材料和方法:在PubMed/Medline、Google Scholar和еLibrary中搜索俄语和英语出版物。最终分析包括12篇论文,包括8项使用人体模型的研究、3项回顾性研究和一项前瞻性临床研究。结果:腹部和骨盆计算机断层扫描以及全身扫描被发现与最高的胎儿辐射暴露有关。然而,没有一份出版物超过了胎儿暴露限值。结论:无论扫描区域如何,孕妇的非造影增强计算机断层扫描不太可能与超过100 mGy限制的胎儿吸收剂量有关。然而,在进行多项研究的情况下,或者如果对多发性创伤患者进行多期腹部或骨盆计算机断层扫描或全身计算机断层扫描,则可能会超过这一限制。在这些情况下,应由多学科团队(包括辐射安全专家、诊断放射科医生和临床医生)根据额外风险评估的结果,决定是否需要进行这些调查。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
CiteScore
1.30
自引率
0.00%
发文量
44
审稿时长
5 weeks
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