title: [Differentiation of true from false left ventricular aneurysm with magnetic resonance imaging in patients after myocardial infarction].
abstract: OBJECTIVE
  To observe the value of cardiac magnetic resonance imaging (MRI) for differentiation of true from false left ventricular aneurysm in patients after myocardial infraction (MI).
  
  
  METHODS
  Twenty-six patients [22 males/4 females, mean age (59.3 ± 9.3) years] with left ventricular aneurysm after MI were imaged with MRI, echocardiography and coronary angiography. The respective findings were compared with surgical pathology results.
  
  
  RESULTS
  There were 24 patients with dyspnea and 15 patients with hypertension. LVEF measured by echocardiography was 36.9% ± 9.1% in this patient cohort. Cardiac MRI showed that the left ventricular end diastolic wall thickness was thinner than 5.5 mm in 24 cases, and between 5.5 to 8 mm in 2 cases. The dimension of left ventricle was (67.8 ± 9.3) mm. Dyskinesia presented in 24 cases, and akinesia in 2 cases. Delayed enhancement was shown in all cases by MRI. Cardiac MRI detected left ventricular true aneurysm in 23 cases, false aneurysm in 3 case and left ventricular thrombi in 7 cases. The diagnosis by magnetic resonance imaging corresponded well to pathological findings. Echocardiography misdiagnosed pseudoaneurysm in 1 patient, and failed to detected left ventricular thrombi in 2 cases.
  
  
  CONCLUSIONS
  Cardiac MRI could correctly differentiate true from false left ventricular aneurysm in patients after MI.
authors.affiliation: Department of Radiology, Chinese Academy of Medical Sciences, Beijing 100037, China.
authors.forename: Chao-wu
authors.initials: CW
authors.lastname: Yan
authors.forename: Hua
authors.initials: H
authors.lastname: Li
authors.forename: Shi-hua
authors.initials: SH
authors.lastname: Zhao
authors.forename: Shi-liang
authors.initials: SL
authors.lastname: Jiang
authors.forename: Min-jie
authors.initials: MJ
authors.lastname: Lu
authors.forename: Yan
authors.initials: Y
authors.lastname: Zhang
authors.forename: Jian
authors.initials: J
authors.lastname: Ling
authors.forename: Yun-qing
authors.initials: YQ
authors.lastname: Wei
authors.forename: Min-fu
authors.initials: MF
authors.lastname: Yang
authors.forename: Wei
authors.initials: W
authors.lastname: Fang
authors.forename: Hong
authors.initials: H
authors.lastname: Zhao
mesh_terms: D000368:Aged; D017023:Coronary Angiography; D003937:Diagnosis, Differential; D004452:Echocardiography; D005260:Female; D006322:Heart Aneurysm / Q000175:diagnosis* / Q000209:etiology; D006352:Heart Ventricles / Q000473:pathology; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D009203:Myocardial Infarction / Q000150:complications / Q000175:diagnosis*