Differentiation of true from false left ventricular aneurysm with magnetic resonance imaging in patients after myocardial infarction
10.3760/cma.j.issn.0253-3758.2011.01.009
- VernacularTitle:磁共振成像在鉴别心肌梗死后左心室室壁瘤中的应用
- Author:
Chao-Wu YAN
1
;
Hua LI
;
Shi-Hua ZHAO
;
Shi-Liang JIANG
;
Min-Jie LU
;
Yan ZHANG
;
Jian LING
;
Yun-Qing WEI
;
Min-Fu YANG
;
Wei FANG
;
Hong ZHAO
Author Information
1. 中国医学科学院,北京协和医学院,心血管病研究所,阜外心血管病医院
- Keywords:
Myocardial infarction;
Magnetic resonance imaging;
Heart aneurysm
- From:
Chinese Journal of Cardiology
2011;39(1):45-48
- CountryChina
- Language:Chinese
-
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 15patients 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 24cases, 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. Conclusion Cardiac MRI could correctly differentiate true from false left ventricular aneurysm in patients after MI.
