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二尖瓣反流(mitral regurgitation,MR)是由于二尖瓣叶关闭不全所致的血液自左心室回流入左心房的一种常见的心血管疾病病理生理现象,其临床意义不仅取决于病因与病变性质,更与反流量的大小密切相关。反流量的准确评估对于患者病情程度的判断及进一步治疗方式的选择起着至关重要的作用[1]。目前,MR程度的准确评估尚无理想的统一标准。作为临床上确定MR程度的重要依据,超声心动图直观提供了对反流束和反流量的观察与检测[2]。
Mitral regurgitation (MR) is a common cardiovascular pathophysiology of blood flow from the left ventricle into the left atrium due to incomplete mitral valve regurgitation. Its clinical significance depends not only on the etiology and The nature of the disease, but also closely related to the size of the reflux. The accurate assessment of reflux rate plays a crucial role in judging the severity of patients and the choice of further treatment modalities [1]. At present, there is no ideal uniform standard for the accurate assessment of MR degree. As an important basis for clinically determining the degree of MR, echocardiography provides an intuitive view and detection of backflow and backflow [2].