Detecting intrapulmonary right-to-left shunt with contrast echocardiography. Observations in a patient with diffuse pulmonary arteriovenous fistulas.
Contrast echocardiography has been useful in detecting intracardiac right-to-left shunts. In a patient with hereditary hemorrhagic telangiectasia and diffuse pulmonary arteriovenous fistulas, we have demonstrated the feasibility of detecting intrapulmonary right-to left shunting using this technique. After venous injection of indocyanine green dye, the characteristic contrast flow pattern consisted of a markedly delayed appearance of echoes in the left ventricle.
D000328:Adult; D001164:Arteriovenous Fistula / Q000175:diagnosis*; D004452:Echocardiography; D005260:Female; D006343:Heart Septal Defects / Q000175:diagnosis; D006801:Humans; D007208:Indocyanine Green; D011651:Pulmonary Artery; D011652:Pulmonary Circulation; D011667:Pulmonary Veins; D013683:Telangiectasia, Hereditary Hemorrhagic / Q000150:complications
D007208:Indocyanine Green