Abstract
Objective To compare tissue-velocity MRI (TV-MRI) and tissue Doppler imaging (TDI) to assess regional right ventricular (RV) diastolic performance at the RV free wall (RVFW) and at the RV outflow tract (RVOT) in patients with corrected Tetralogy of Fallot (cToF) and in healthy controls. To compare regional diastolic velocities and performance of the RV between cToF patients and controls. To investigate the relation between RV regional diastolic performance and RV dilatation.
Highlights
The exact pathophysiological mechanism leading to right ventricular (RV) dilatation in corrected Tetralogy of Fallot (cToF) patients with pulmonary regurgitation (PR) is not fully understood
Strong correlations were observed between tissue-velocity MRI (TV-MRI) and tissue Doppler imaging (TDI) at both regions of the RV (RVFW E’: r=0.92, p
Regional diastolic performance at the RVOT was significantly related to RV end-diastolic volume, even after correction for pulmonary regurgitation fraction (Table 2)
Summary
To compare tissue-velocity MRI (TV-MRI) and tissue Doppler imaging (TDI) to assess regional right ventricular (RV) diastolic performance at the RV free wall (RVFW) and at the RV outflow tract (RVOT) in patients with corrected Tetralogy of Fallot (cToF) and in healthy controls. To compare regional diastolic velocities and performance of the RV between cToF patients and controls. To investigate the relation between RV regional diastolic performance and RV dilatation
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