Prakash R, King J, Aronow W S
Angiology. 1976 Apr;27(4):219-22. doi: 10.1177/000331977602700403.
Echocardiographic examination in a patient with IHSS, mitral insufficiency, and cardiomegaly suggested the possibility of a pericardial effusion. Echocardiographic M-mode scanning documented the continuity of the space posterior to the pericardium with an enlarged left atrium. Subsequent cineangiographic studies confirmed an enlarged left atrium and the absence of pericardial effusion. Left atrial enlargement may cause a false positive echocardiographic diagnosis of pericardial effusion.
对一名患有特发性肥厚性主动脉瓣下狭窄（IHSS）、二尖瓣关闭不全和心脏扩大的患者进行的超声心动图检查提示可能存在心包积液。超声心动图M型扫描记录了心包后方的间隙与扩大的左心房之间的连续性。随后的心血管造影研究证实左心房扩大且不存在心包积液。左心房扩大可能导致心包积液的超声心动图诊断出现假阳性。
