双能 CT 在心脏成像中的应用。
Dual-Energy Computed Tomography in Cardiac Imaging.
机构信息
Division of Cardiothoracic Imaging, Department of Radiology and Imaging Sciences, Emory University Hospital, 1364 Clifton Road NE, Suite D112, Atlanta, GA 30322, USA; Institute of Diagnostic and Interventional Radiology, Pediatric Radiology and Neuroradiology, University Medical Centre Rostock, Ernst-Heydemann-Strasse 6, 18057 Rostock, Germany.
Division of Cardiovascular Imaging, Department of Radiology and Radiological Science, Medical University of South Carolina, Clinical Science Building, 96 Jonathan Lucas Street, Suite 210, MSC 323 Charleston, SC 29425, USA; MTA-SE Cardiovascular Imaging Research Group, Medical Imaging Center, Semmelweis University, Üllői út 26, 1085 Budapest, Hungary.
出版信息
Radiol Clin North Am. 2023 Nov;61(6):995-1009. doi: 10.1016/j.rcl.2023.05.004. Epub 2023 Jun 18.
Dual-energy computed tomography (DECT) acquires images using two energy spectra and offers a variation of reconstruction techniques for improved cardiac imaging. Virtual monoenergetic images decrease artifacts improving coronary plaque and stent visualization. Further, contrast attenuation is increased allowing significant reduction of contrast dose. Virtual non-contrast reconstructions enable coronary artery calcium scoring from contrast-enhanced scans. DECT provides advanced plaque imaging with detailed analysis of plaque components, indicating plaque stability. Extracellular volume assessment using DECT offers noninvasive detection of myocardial fibrosis. This review aims to outline the current cardiac applications of DECT, summarize recent literature, and discuss their findings.
双能 CT（DECT）使用两个能谱采集图像，并提供了多种重建技术，以改善心脏成像。虚拟单能量成像可减少伪影，改善冠状动脉斑块和支架的可视化。此外，对比衰减增加，允许显著减少对比剂量。虚拟非对比重建可从增强扫描中进行冠状动脉钙化评分。DECT 提供了先进的斑块成像，可详细分析斑块成分，指示斑块稳定性。使用 DECT 进行细胞外容积评估可无创检测心肌纤维化。本文旨在概述 DECT 的当前心脏应用，总结近期文献，并讨论其研究结果。
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