Discipline of Medical Imaging, Department of Imaging and Applied Physics, Curtin University of Technology, Perth 6845, Australia.
Singapore Med J. 2010 May;51(5):374-80.
With the introduction of 64- or more-slice computed tomography (CT) technology, multislice CT angiography has been increasingly used as a non-invasive modality for the diagnosis of coronary artery disease. Despite its potential advantages and promising clinical results, multislice CT angiography suffers from high radiation dose which contributes to radiation-induced malignancy in patients undergoing cardiac CT examinations. This has raised serious concerns in clinical practice. A number of strategies have been recommended and implemented to reduce the radiation dose associated with multislice CT angiography in cardiac imaging. The aim of this review is to present an overview of the various approaches used for radiation dose reduction. Future directions of multislice CT angiography with regard to the judicious use of this promising technique and increased awareness of the radiation risk are highlighted.
随着 64 排或以上多层螺旋 CT 技术的引进，多层螺旋 CT 血管造影已越来越多地被用作诊断冠状动脉疾病的一种非侵入性手段。尽管多层螺旋 CT 血管造影具有潜在的优势和有前景的临床结果，但它存在着高辐射剂量的问题，这会导致接受心脏 CT 检查的患者发生辐射诱发的恶性肿瘤。这在临床实践中引起了严重关注。已经推荐并实施了许多策略来降低心脏成像中与多层螺旋 CT 血管造影相关的辐射剂量。本综述的目的是介绍用于降低辐射剂量的各种方法。强调了多层螺旋 CT 血管造影在明智使用这种有前途的技术和提高对辐射风险的认识方面的未来方向。
