The importance of cardiac MRI (CMR) in pediatric acute myocarditis, and it’s correlation with high sensitivity troponin

Pediatric myocarditis is associated with major morbidity and mortality. Biomarkers are needed to predict clinical outcomes. High-sensitivity troponin (hs-TnT) and late gadolinium enhancement (LGE) have been shown to correlate with poor outcomes in adult populations. We found that LGE and hs-TnT linearly correlated with each other in our pediatric population, and that children with myocarditis were more likely to be male, have a higher LGE score, higher hs-TnT values, and increased T2 signal intensity than those who did not. A cut-off of 1200 ms for native T1 global mean was significantly associated with the need for inotropic support.