Determination of right ventricular function with adjusted systolic to diastolic duration ratio after transannular patch repair of tetralogy of Fallot.

Background: Early detection of right ventricular dysfunction after transannular patch for tetralogy of Fallot (TOF-TAP) is essential for management.

Objectives: To evaluate echocardiographic metrics of ventricular function correlate with functional MRI measurements, in patients with TOF-TAP.

Methods: A retrospective review of patients with TOF-TAP between 2007 and 2017 who had an echocardiogram and MRI within six months were analyzed.