心血管CT检查在小儿复杂先天性心脏病中的应用进展

Usefulness of cardiac computed tomography in pediatric complex congenital heart diseases

近年来随着CT检查设备的更新和扫描方法的改进,心血管CT检查在小儿复杂先天性心脏病中的应用越来越广泛。心血管CT作为一项无创检查,既安全、简便又相对廉价,与超声优势互补,其图像质量能够满足诊断的需求,辐射剂量进一步降低,安全性大为提高。CT具有的较高空间分辨率和强大的三维后处理技术,弥补了超声对心腔外和冠状动脉畸形的诊断缺陷,其作为小儿复杂先天性心脏病的术前检查日益受到重视。本文结合近年来国内外的相关研究成果,简要总结心血管CT检查在小儿复杂先天性心脏病中的应用价值,旨在为临床提供参考,为临床进一步的推广应用提供依据。

We have witnessed major advances in cardiac CT technology with updated equipments and improved scan protocols over the last decade, and cardiac CT has been widely used in the diagnosis of pediatric complex congenital heart diseases. As a non-invasive tool, cardiac CT has high image spatial resolution and powerful 3-dimensional post-processing image reconstruction, with improvement of the image quality and reduction of radiation dose. It has been considered as a complementary modality to echocardiography in evaluation of extra-cardiac anatomy, coronary arteries and vascular structures. Role of cardiac CT in preoperative examinations of pediatric complex congenital heart diseases has been emphasized. This review focused on recent results of using cardiac CT in the evaluation of pediatric complex congenital heart diseases, aim at providing guidance for clinical application and pointing out direction for further investigation.