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• Clinical Article •
Comparing cardiac magnetic resonance with echocardiogram on diagnosis of apical hypertrophic cardiomyopathy
YUAN Si-shu  LI Zhi-wei  XIA Li-ming 

DOI:10.3969/j.issn.1674-8034.2015.03.006.


[Abstract] Objective: To discuss the character of cardiac magnetic resonance and echocardiogram findings of apical hypertrophic cardiomyopathy (AHCM), and evaluate the diagnostic value of CMR and echocardiogram in AHCM.Materials and Methods: Twenty-one patients (male 16, female 5) with AHCM underwent Cardiac Magnetic Resonance, echocardiogram, ECG and coronary angiography.Results: The cardiac magnetic resonance revealed apical hypertrophic in all the patients. Among them, 13 patients were pure form P-AHCM, 1 patient was pure form T-AHCM, 1 patient was mixed form P-AHCM, and 6 patients were mixed form T-AHCM. Magnetic resonance imaging showed "ace of spades" morphology of the left ventricle in all the T-AHCM patients. Four patients underwent myocardial contrast enhancement MR scanning: 3 patients presented LGE, 2 patients presented myocardial ischemia, and 2 patients presented myocardial infarction. Echocardiography provided correct diagnoses in 6/21 patients (28.6%), while in 10 patients echocardiographic results were normal. All of our patients showed electrocardiographic alterations of the ventricular repolarization: 14 patients (67.7%) with LV high voltage. Seventeen patients (80.9%) with giant negative T waves. Sixteen patients (76.2%) with a significant descending ST segment. Four patients had arrhythmia in different degrees.Conclusions: MR has higher sensitivity in diagnosing AHCM than echocardiogram. The ECG is a helpful tool to screen AHCM. To the patients who is suspected of AHCM, cardiac magnetic resonance could make a definite diagnosis.
[Keywords] Magnetic resonance imaging；Echocardiogram；Apical hypertrophic；Cardiomyopathy

YUAN Si-shu Department of Radiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430000, China

LI Zhi-wei Department of Radiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430000, China

XIA Li-ming* Department of Radiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430000, China

*Correspondence to: Xia LM, E-mail: cjr.xialiming@vip.163.com

Conflicts of interest   None.

Received  2014-10-07
Accepted  2014-12-01
DOI: 10.3969/j.issn.1674-8034.2015.03.006
DOI:10.3969/j.issn.1674-8034.2015.03.006.

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