Keywords: Heart, Cardiovascular, Cardiac magnetic resonance; Obstructive sleep apnea-hypopnea syndrome; Dilated cardiomyopathyThe obstructive sleep apnea-hypopnea syndrome (OSAHS) patients with heart failure and dilated cardiomyopathy (DCM) patients all show left ventricular dilatation and systolic dysfunction as the main phenomenon. Still, there are very few reports on identifying the two diseases. Herein cardiac magnetic resonance (CMR) myocardial strain technology was used to evaluate the cardiac function and myocardial structure of the OSAHS and DCM patients. The results showed that the global peak circumferential and longitudinal strains and the left ventricular myocardial mass of the DCM group were lower than the OSAHS group. This research provides reference for the identification of these two diseases.
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