Division of Diagnostic Radiology, Department of Diagnostic and Therapeutic Radiology, Faculty of Medicine, Ramathibodi Hospital, Mahidol University, Bangkok, Thailand.
Eur J Radiol. 2013 Jul;82(7):1067-82. doi: 10.1016/j.ejrad.2011.11.042. Epub 2011 Dec 22.
Cardiac imaging plays an important role in both congenital and acquired heart diseases. Cardiac computed tomography (angiography) cCT(A) is a non-invasive, increasingly popular, complementary modality to echocardiography in evaluation of congenital heart diseases (CHD) in children. Despite radiation exposure, cCT(A) is now commonly used for evaluation of the complex CHD, giving information of both intra-cardiac and extra-cardiac anatomy, coronary arteries, and vascular structures. This review article will focus on the fundamentals and essentials for performing cCT(A) in children, including radiation dose awareness, basic techniques, and strengths and weaknesses of cCT(A) compared with cardiac magnetic resonance imaging (cMRI), and applications. The limitations of this modality will also be discussed, including the CHD for which cMRI may be substituted.
心脏影像学在先天性和后天性心脏病的诊断中均发挥着重要作用。心脏计算机断层扫描（血管造影）cCT(A) 是一种非侵入性的、日益普及的方法，在评估儿童先天性心脏病 (CHD) 方面，可作为超声心动图的补充手段。尽管存在辐射暴露，cCT(A) 现在常用于评估复杂的 CHD，可以提供心脏内外解剖结构、冠状动脉和血管结构的信息。本文综述重点介绍了在儿童中进行 cCT(A)的基本原理和要点，包括辐射剂量意识、基本技术，以及 cCT(A)与心脏磁共振成像 (cMRI) 的优缺点和应用。还讨论了该方法的局限性，包括可能需要替代 cMRI 的 CHD 类型。
