Diffuse Myocardial Fibrosis in Children After Heart Transplantations: A Magnetic Resonance T1 Mapping Study.

BackgroundIt is unclear whether the myocardium undergoes accelerated fibrotic remodeling in children after heart transplantation (HTx).MethodsIn this prospective study, cardiac magnetic resonance (CMR) studies in 17 patients 1.3 years (median, range 0.03-12.6 years) after HTx (mean age, 9.8 ± 6.2 ye