Key result
Ventricular remodeling in repaired tetralogy of Fallot is related to hemodynamic force magnitude and direction, global and regional functional parameters, and exercise intolerance.
Why the study?
To elucidate the interplay between RV shape, hemodynamic forces, and clinical dysfunction in patients with repaired tetralogy of Fallot.
Does statistical shape modeling combined with 4D flow data analysis identify relationships between right ventricular shape, hemodynamic forces, and clinical dysfunction in patients with repaired tetralogy of Fallot?
Observational
Does statistical shape modeling combined with 4D flow data analysis identify relationships between right ventricular shape, hemodynamic forces, and clinical dysfunction in patients with repaired tetralogy of Fallot?
Statistical shape modeling of 4D flow data can identify shape variations in repaired tetralogy of Fallot that correlate with hemodynamic forces and exercise intolerance, potentially identifying patients at risk for irreversible dysfunction.
May identify at-risk repaired TOF patients; hypothesis-generating for shape-hemodynamic biomarkers pending validation.
We combine statistical shape modeling with physics-based analysis of 4D flow data to elucidate the interplay between RV shape, hemodynamic forces, and clinical dysfunction in repaired tetralogy of Fallot. We are the first to show that ventricular remodeling is related to hemodynamic force magnitude and direction, global and regional functional parameters, and exercise intolerance. Identification of patients based on the shape variations described in this study could help identify those at risk for irreversible dysfunction.
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Kollar et al. (2022) conducted an observational in Repaired tetralogy of Fallot. Right ventricular shape variations and ventricular remodeling was evaluated on Interplay between RV shape, hemodynamic forces, and clinical dysfunction. Ventricular remodeling in repaired tetralogy of Fallot is related to hemodynamic force magnitude and direction, global and regional functional parameters, and exercise intolerance.
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