1. Volume 107, Issue 1, Pages 8-13 (January 1995)
Detection of Cardiovascular Shunts by Transesophageal Echocardiography in Patients With Pulmonary Hypertension of Unexplained Cause 
Wei-Jan Chen, MD, Jin-Jer Chen, MD, Shen-Chang Lin, MD, Juey-Jen Hwang, MD, Wen-Pin Lien, MD, FCCP 
CHEST 
Volume 107, Issue 1, Pages 8-13 (January 1995)
DOI: /chest
Copyright © 1995 The American College of Chest Physicians Terms and Conditions

2. FIGURE 1
Echocardiography in atrial septal defect. A, B, and C, Ostium secundum atrial septal defect. A, top, shows a patient with an atrial septal “dropout” (arrowhead) in the apical four-chamber view of transthoracic echocardiography. No characteristic shunt jet through the defect was depicted by color flow mapping. B, center. A defect (arrowhead) in the middle of the atrial septum was visualized from transesophageal approach, indicating that this patient had a secundum atrial septal defect. C, bottom. Transesophageal pulsed Doppler spectral tracing of the jet through the defect in the atrial septum displayed a pattern of bidirectional shunt. LA=left atrium; LV=left ventricle; BA=right atrium; RV=right ventricle.
CHEST  , 8-13DOI: ( /chest )
Copyright © 1995 The American College of Chest Physicians Terms and Conditions

3. FIGURE 2
Transesophageal Doppler color flow mapping in patent ductus arteriosus. Transthoracic echocardiography did not disclose the lesion. Right, a shunt jet (arrowhead) across the ductus arteriosus; left, pulsed Doppler spectral tracing of the jet revealed a pattern of bidirectional shunt. AO=aorta; MPA=main pulmonary artery.
CHEST  , 8-13DOI: ( /chest )
Copyright © 1995 The American College of Chest Physicians Terms and Conditions