- Etiology: inflammation of myocardial tissue, myocardial dysfunction leads to pulmonary venous return obstruction, most commonly due to infection – coxsackie virus most common infectious cause in newborn, less commonly due to toxic / ischemic / mechanical injury or drug related inflammation or transplant rejection
- Imaging: pericardial effusion in 33%-50%, global left ventricular dysfunction in severe cases
- MRI: edema and fibrosis with T2WI being a biomarker of edema with increased signal intensity of myocardium and T1WI being a biomarker of fibrosis with delayed enhancement of myocardium due to focal fibrosis on post contrast imaging, need abnormalities on both T1WI and T2WI to make the diagnosis
- Treatment: heart transplant
Pediatric Imaging 