A systematic review of radiation dose to the eye lens from pediatric brain computed tomography scans.

IF 2.3 3区医学 Q2 PEDIATRICS

Pediatric Radiology Pub Date : 2025-08-15 DOI:10.1007/s00247-025-06371-7

Amanda Alison Perdomo, Jake Cameron Forster, Mohamed Khaldoun Badawy

{"title":"A systematic review of radiation dose to the eye lens from pediatric brain computed tomography scans.","authors":"Amanda Alison Perdomo, Jake Cameron Forster, Mohamed Khaldoun Badawy","doi":"10.1007/s00247-025-06371-7","DOIUrl":null,"url":null,"abstract":"Background: With the increasing use of pediatric brain computed tomography (CT) and the International Commission on Radiological Protection's revised threshold for radiation-induced lens opacities, concerns have grown regarding cumulative radiation exposure to the eye lens.Objective: This review examines the magnitude of lens doses reported in pediatric brain CT and the methodologies used to estimate these doses.Methods: A systematic literature search of MedLine, Embase, and PubMed (2012-2024) identified 18 eligible studies, including direct patient measurements, phantom-based experiments, and computational modeling.Results: Reported lens doses varied widely across studies. Software-based tools generally estimate higher doses than those measured directly on patients or phantoms. Multiple dose-reduction strategies such as gantry tilting, organ-based tube current modulation, and protocol optimization were effective in significantly lowering lens exposure without compromising diagnostic quality.Conclusion: In all cases, individual scan doses remain below the cataractogenic threshold. However, children undergoing repeated imaging may exceed this limit over time. Cumulative lens dose tracking and routine implementation of orbit-sparing techniques are recommended to reduce long-term radiation risk in vulnerable pediatric populations.","PeriodicalId":19755,"journal":{"name":"Pediatric Radiology","volume":" ","pages":""},"PeriodicalIF":2.3000,"publicationDate":"2025-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Pediatric Radiology","FirstCategoryId":"3","ListUrlMain":"https://doi.org/10.1007/s00247-025-06371-7","RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"PEDIATRICS","Score":null,"Total":0}

引用次数: 0

Abstract

Background: With the increasing use of pediatric brain computed tomography (CT) and the International Commission on Radiological Protection's revised threshold for radiation-induced lens opacities, concerns have grown regarding cumulative radiation exposure to the eye lens.

Objective: This review examines the magnitude of lens doses reported in pediatric brain CT and the methodologies used to estimate these doses.

Methods: A systematic literature search of MedLine, Embase, and PubMed (2012-2024) identified 18 eligible studies, including direct patient measurements, phantom-based experiments, and computational modeling.

Results: Reported lens doses varied widely across studies. Software-based tools generally estimate higher doses than those measured directly on patients or phantoms. Multiple dose-reduction strategies such as gantry tilting, organ-based tube current modulation, and protocol optimization were effective in significantly lowering lens exposure without compromising diagnostic quality.

Conclusion: In all cases, individual scan doses remain below the cataractogenic threshold. However, children undergoing repeated imaging may exceed this limit over time. Cumulative lens dose tracking and routine implementation of orbit-sparing techniques are recommended to reduce long-term radiation risk in vulnerable pediatric populations.

查看原文本刊更多论文

儿童脑部计算机断层扫描对眼晶状体辐射剂量的系统回顾。

背景：随着儿童脑部计算机断层扫描（CT）的使用越来越多，以及国际放射防护委员会修订了辐射引起的晶状体混浊的阈值，人们越来越关注对晶状体的累积辐射暴露。目的：本综述探讨了在儿童脑CT中报道的晶状体剂量的大小以及用于估计这些剂量的方法。方法：系统检索MedLine、Embase和PubMed（2012-2024）的文献，确定了18项符合条件的研究，包括直接患者测量、基于幻影的实验和计算建模。结果：不同研究报告的晶状体剂量差异很大。基于软件的工具估计的剂量通常比直接在病人或幽灵身上测量的剂量高。多种剂量降低策略，如龙门倾斜、基于器官的管电流调制和方案优化，在不影响诊断质量的情况下有效地显著降低透镜暴露。结论：在所有病例中，个体扫描剂量保持在白内障诱发阈值以下。然而，随着时间的推移，反复接受影像检查的儿童可能会超过这个限制。建议使用累积晶状体剂量跟踪和常规保留眼窝技术来降低易受辐射影响的儿童群体的长期辐射风险。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Pediatric Radiology 医学-核医学

CiteScore

4.40

自引率

17.40%

发文量

300

审稿时长

3-6 weeks

期刊介绍： Official Journal of the European Society of Pediatric Radiology, the Society for Pediatric Radiology and the Asian and Oceanic Society for Pediatric Radiology Pediatric Radiology informs its readers of new findings and progress in all areas of pediatric imaging and in related fields. This is achieved by a blend of original papers, complemented by reviews that set out the present state of knowledge in a particular area of the specialty or summarize specific topics in which discussion has led to clear conclusions. Advances in technology, methodology, apparatus and auxiliary equipment are presented, and modifications of standard techniques are described. Manuscripts submitted for publication must contain a statement to the effect that all human studies have been reviewed by the appropriate ethics committee and have therefore been performed in accordance with the ethical standards laid down in an appropriate version of the 1964 Declaration of Helsinki. It should also be stated clearly in the text that all persons gave their informed consent prior to their inclusion in the study. Details that might disclose the identity of the subjects under study should be omitted.