Sakuma Hajime
Department of Diagnostic Radiology, Mie University Hospital, Mie, Japan.
J Magn Reson Imaging. 2007 Jul;26(1):3-13. doi: 10.1002/jmri.20976.
Cardiac MRI has long been recognized as an accurate and reliable means of evaluating cardiac anatomy and ventricular function. Considerable progress has been made in the field of cardiac MRI, and cardiac MRI can provide accurate evaluation of myocardial ischemia and infarction (MI). Late gadolinium (Gd)-enhanced MRI can clearly delineate subendocardial infarction, and the assessment of transmural extent of infarction on late enhanced MRI has been shown to be useful in predicting functional recovery of dysfunctional myocardium in patients after MI. Stress first-pass contrast-enhanced (CE) myocardial perfusion MRI can be used to detect subendocardial ischemia, and recent studies have demonstrated the high diagnostic accuracy of stress myocardial perfusion MRI for detecting significant coronary artery disease (CAD). Free-breathing, whole-heart coronary MR angiography (MRA) was recently introduced as a method that can provide visualization of all three major coronary arteries within a single three-dimensional (3D) acquisition. With further improvements in MRI techniques and the establishment of a standardized study protocol, cardiac MRI will play a pivotal role in managing patients with ischemic heart disease.
心脏磁共振成像（MRI）长期以来一直被认为是评估心脏解剖结构和心室功能的准确且可靠的方法。心脏MRI领域已取得了相当大的进展，并且心脏MRI能够对心肌缺血和心肌梗死（MI）进行准确评估。延迟钆（Gd）增强MRI能够清晰勾勒出心内膜下梗死灶，并且已表明在延迟增强MRI上评估梗死的透壁范围有助于预测心肌梗死后功能失调心肌的功能恢复。负荷首过对比增强（CE）心肌灌注MRI可用于检测心内膜下缺血，并且最近的研究已证明负荷心肌灌注MRI对检测显著冠状动脉疾病（CAD）具有较高的诊断准确性。自由呼吸全心冠状动脉磁共振血管造影（MRA）最近作为一种能够在单次三维（3D）采集中实现对所有三支主要冠状动脉进行可视化的方法被引入。随着MRI技术的进一步改进以及标准化研究方案的建立，心脏MRI将在缺血性心脏病患者的管理中发挥关键作用。
