Patients with Fontan circulation nowadays have a well long-term survival with the improvement of post-surgery care and follow-up examination techniques. However, ventricular dysfunction and heart failure may occur in a couple years after surgery. To evaluate the risk of cardiac events in an early disease stage is important for patient managements. In this study, we measured myocardial motion velocity by tissue phase mapping. Fontan patients presented significantly decreased systolic and diastolic longitudinal velocity. In conclusion, evaluation of myocardial motion velocity could provide helpful information in detecting myocardial remodeling of functional ventricle in Fontan patients.
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