Figure 031_0133. Transthoracic echocardiography (TTE) (4-chamber view): secundum atrial septal defect (ASD). Color Doppler imaging shows a left-to-right shunt (arrow). LA, left atrium; LV, left ventricle; RA, right atrium; RV, right ventricle. - McMaster Textbook of Internal Medicine

Figure 031_0133.
Transthoracic echocardiography (TTE) (4-chamber view): secundum atrial septal defect (ASD). Color Doppler imaging shows a left-to-right shunt (arrow). LA, left atrium; LV, left ventricle; RA, right atrium; RV, right ventricle.

Figure 031_0133. Transthoracic echocardiography (TTE) (4-chamber view): secundum atrial septal defect (ASD). Color Doppler imaging shows a left-to-right shunt (arrow). LA, left atrium; LV, left ventricle; RA, right atrium; RV, right ventricle.