Pulsed Doppler Echocardiography in Patients with Aorto‐pulmonary Connection

Abstract

ABSTRACT. The pulsed Doppler principle enables us to study the bloodflow velocity at specific points in the heart and great vessels. In such aorto‐pulmonary connections as patent dnctus arteriosus, aorto‐pulmonary window and truncus arteriosus the bloodflow velocity patterns are typical of the malformation. Based on knowledge of these abnormal flow patterns the diagnoses of these malformations can be made.

Diagnostic Accuracy of Transesophageal Echocardiography for Detecting Patent Ductus Arteriosus in Adolescents and Adults

“…This is not diagnostic of PDA because a mo¬ saic flow in the pulmonary artery can occur in many other disorders such as aortopulmonary septal defect, rupture of the sinus of Valsalva into the pulmonary artery, pulmonary stenosis, and coronary artery fistula draining into the pulmonary artery. 21,22 Although the diagnosis of PDA could not be confirmed in these pa¬ tients, this finding was compatible with PDA and im¬ plied the need for further study.…”