From the Division of Cardiovascular Imaging, Department of Radiology and Radiological Science, Medical University of South Carolina, Charleston.
Heart and Vascular Center, Semmelweis University, Budapest, Hungary.
Invest Radiol. 2023 Jul 1;58(7):505-514. doi: 10.1097/RLI.0000000000000956. Epub 2023 Feb 22.
Noninvasive cardiac imaging has rapidly evolved during the last decade owing to improvements in computed tomography (CT)-based technologies, among which we highlight the recent introduction of the first clinical photon-counting detector CT (PCD-CT) system. Multiple advantages of PCD-CT have been demonstrated, including increased spatial resolution, decreased electronic noise, and reduced radiation exposure, which may further improve diagnostics and may potentially impact existing management pathways. The benefits that can be obtained from the initial experiences with PCD-CT are promising. The implementation of this technology in cardiovascular imaging allows for the quantification of coronary calcium, myocardial extracellular volume, myocardial radiomics features, epicardial and pericoronary adipose tissue, and the qualitative assessment of coronary plaques and stents. This review aims to discuss these major applications of PCD-CT with a focus on cardiac and myocardial characterization.
由于基于计算机断层扫描（CT）的技术得到了改进，非侵入性心脏成像在过去十年中得到了迅速发展，其中我们重点介绍了首个临床光子计数探测器 CT（PCD-CT）系统的最新应用。PCD-CT 具有多项优势，包括提高了空间分辨率、降低了电子噪声和减少了辐射暴露，这可能进一步改善诊断，并可能对现有的管理途径产生影响。从 PCD-CT 的初步应用中获得的益处是很有希望的。该技术在心血管成像中的应用可实现冠状动脉钙、心肌细胞外容积、心肌放射组学特征、心外膜和冠状周围脂肪组织的定量评估，以及冠状动脉斑块和支架的定性评估。本综述旨在讨论 PCD-CT 的这些主要应用，重点是心脏和心肌特征。
