Cor Triatriatum on Cardiac MRI - Dr. Anthon Fuisz, MD @DrFuisz Cor Triatriatum (or triatrial heart) is a congenital heart defect where the left atrium (cor triatriatum sinistrum) or right atrium (cor triatriatum dextrum) is subdivided by a thin membrane, resulting in three atrial chambers (hence the name). #CorTriatriatum #Triatrial #Heart #CardiacMRI #Clinical #Congenital #Cardiology