Figure 3. Atrial septal defect in the septum secundum in a 45-year-old man with dyspnea on exertion. Axial ECG-gated cine MR image shows a defect (arrow) in the middle of the atrial septum. LA = left atrium, RA = right atrium.
Figure 3. Atrial septal defect in the septum secundum in a 45-year-old man with dyspnea on exertion. Axial ECG-gated cine MR image shows a defect (arrow) in the middle of the atrial septum. LA = left atrium, RA = right atrium.