Transesophageal Echocardiographic Imaging of the Left Atrium Behind the Ascending Aorta Mimicking Aortic Dissection Validation by Contrast Echocardiography.

We describe the presence of a localized echo-free space behind the ascending aorta, which could mimic an aortic dissection. This space was confirmed to be the left atrium by intraoperative contrast echocardiography.

Mirror Image from a Left Atrial Line Mimicking a Catheter in the Left Ventricle During Transesophageal Echocardiography.

We describe a case report where a left atrial catheter inserted intraoperatively produced an artifact, which mimicked a catheter in the left ventricle during transesophageal echocardiographic examination.