Figure 1From: Cor triatriatum presenting as heart failure with reduced ejection fraction: a case report MR of the heart cine 4-chamber view (left) showing a fibro muscular septum into the left atrium dividing it into two compartments which communicate via a central orifice (left). Mid-esophageal (ME) 4-chamber view (right) showing the membrane coursing transversely into the left atrium (right).Back to article page