Sueyoshi E, Sakamoto I, Uetani M
Department of Radiology, Nagasaki University School of Medicine, Nagasaki, Japan.
Br J Radiol. 2009 Aug;82(980):691-7. doi: 10.1259/bjr/23291589. Epub 2008 Dec 19.
The concentration of MR contrast agents is relatively high in abnormal myocardial tissue, with increased extravascular space and/or abnormal contrast wash-in and wash-out characteristics. Based on this mechanism, myocardial delayed contrast-enhanced MRI has been increasingly used to detect myocardial damage. Delayed enhancement (DE) can be seen in various components, such as fibrosis, protein infiltration or possibly myocardial disarray with disorganized myocardial fibre packing. Therefore, DE can be seen in various myocardial diseases, each of which has a characteristic DE pattern. Knowledge of the relationships among various DE patterns and myocardial diseases is useful for differential diagnosis and management.
磁共振成像（MR）造影剂在异常心肌组织中的浓度相对较高，其血管外间隙增加和/或具有异常的造影剂注入和洗脱特征。基于这一机制，心肌延迟对比增强磁共振成像越来越多地用于检测心肌损伤。在各种成分中都可以看到延迟强化（DE），如纤维化、蛋白质浸润或可能存在的心肌纤维排列紊乱导致的心肌排列紊乱。因此，在各种心肌疾病中都可以看到DE，每种疾病都有其特征性的DE模式。了解各种DE模式与心肌疾病之间的关系有助于鉴别诊断和治疗。
