fig27

Figure 27. Transesophageal echocardiographic studies of the atrial septum demonstrating aortic (ARim), mitral (MRim), superior vena caval (SVC Rim), and inferior vena caval (IVC Rim) rims in sort axis (A) four-chamber (B) and bi-caval (C, D) views, respectively. Aorta (Ao), atrial septal defect (ASD), inferior vena cava (IVC), left atrium (LA), left ventricle (LV), right atrium (RA), right ventricle (RV), and superior vena cava (SVC) are labeled.