No abstract

No abstract

No 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.

SUmmARY The width of the jet flow in the pulmonary artery was measured using a multigate pulsed Doppler system in a baby with severe pulmonary valve stenosis. The degree of stenosis estimated before operation agreed with the result obtained during surgery.