Figure 6From: Three-dimensional transesophageal echocardiography of the atrial septal defectsFour chamber view of a heart with CA and tricuspid atresia as seen in a 3D TEE study (A) and an analogous anatomic specimen (B). 1 and 2 indicate the two portions of the CA separated by a small prominence in its posterior wall (discontinuous arrow). Arrow heads indicate the absence of right AV connection. 3.- A large ventricular septal defect.Back to article page