心脏磁共振对隐匿性心源性栓塞的诊断价值

Diagnostic value of cardiac magnetic resonance in occult cardiac embolism

心脏磁共振(CMR)广泛应用于心脏疾病的诊断与治疗,但在缺血性卒中领域的应用尚不明确。CMR作为一种无创性检查方法,在明确缺血性卒中病因机制方面发挥重要作用,可以识别隐匿性心源性栓塞。本文综述CMR在隐匿性心源性栓塞诊断中的应用,即对缺血性卒中潜在病因如心脏血栓、左心房增大、左心房纤维化、左心耳形态及罕见心肌病等的识别,以及其优劣性,以为临床早期识别隐匿性心源性栓塞提供参考。

Cardiac magnetic resonance(CMR)is widely used in the diagnosis and treatment of cardiac diseases,but its application in the field of ischemic stroke is unclear.As a noninvasive test,CMR plays an important role in clarifying the etiological mechanisms of ischemic stroke and can identify occult cardiac embolism.This article reviews the application of CMR in the diagnosis of occult cardiac embolism,the identification of potential etiologies of ischemic stroke such as cardiac thrombus,left atrial enlargement,left atrial fibrosis,left auricular morphology and rare cardiomyopathies,as well as advantages and disadvantages of CMR,which will in turn provide a reference for the early identification of occult cardiac embolism in the clinic.