Department of Radiology, University of Washington, Redmond, WA, USA.
AJR Am J Roentgenol. 2013 May;200(5):950-6. doi: 10.2214/AJR.12.9026.
The introduction of MDCT has increased the utilization of CT in pediatric radiology along with concerns for radiation sequelae. This article reviews general principles of lowering radiation dose, the basic physics that impact radiation dose, and specific CT integrated dose-reduction tools focused on the pediatric population.
The goal of this article is to provide a comprehensive review of the recent literature regarding CT dose reduction methods, their limitations, and an outlook on future developments with a focus on the pediatric population. The discussion will initially focus on general considerations that lead to radiation dose reduction, followed by specific technical features that influence the radiation dose.
随着对辐射后遗症的担忧,多层螺旋 CT 的引入增加了儿科放射学中 CT 的应用。本文回顾了降低辐射剂量的一般原则、影响辐射剂量的基本物理学原理,以及专门针对儿科人群的特定 CT 综合剂量降低工具。
本文的目的是全面回顾关于 CT 剂量降低方法的最新文献,包括其局限性,以及对儿科人群的未来发展展望。讨论将首先集中在导致辐射剂量降低的一般考虑因素上,然后是影响辐射剂量的具体技术特点。