Spindola-Franco H, Kronacher N
Radiology. 1978 Apr;127(1):29-34. doi: 10.1148/127.1.29.
Left ventricular pseudoaneurysms represent intrapericardial ruptures contained by adherent pericardium and fibrous tissue, forming an avascular wall; in contrast, the wall of a true aneurysm is formed of fibrous elements of the infarcted myocardium and contains coronary vessels. Prior myocardial infarction and/or aneurysmectomy may predispose to pseudoaneurysm formation. Plain radiographs, echocardiography, gated cardiac blood pool imaging, and left ventriculography are helpful, and the combination of left ventriculography and selective coronary arteriography is diagnostic. A uni- or multiloculated chamber communicating with the left ventricle by a relatively small orifice without draping of coronary vessels is diagnostic of pseudoaneurysm.
左心室假性动脉瘤是指心包内破裂，由粘连的心包和纤维组织包裹，形成无血管壁；相比之下，真性动脉瘤的壁由梗死心肌的纤维成分构成，并含有冠状动脉血管。既往心肌梗死和/或动脉瘤切除术可能易引发假性动脉瘤形成。胸部X线平片、超声心动图、门控心血池显像和左心室造影检查均有帮助，左心室造影和选择性冠状动脉造影联合检查具有诊断意义。通过一个相对较小的孔口与左心室相通且无冠状动脉血管垂落的单腔或多腔腔室可诊断为假性动脉瘤。
