Pulmonary vein stenosis: pre-operative diagnosis by angiography using the "blocked catheter" technique.
D002404:Catheterization; D002675:Child, Preschool; D003251:Constriction, Pathologic / Q000000981:diagnostic imaging; D006801:Humans; D008297:Male; D008722:Methods; D011300:Preoperative Care; D011651:Pulmonary Artery / Q000000981:diagnostic imaging*; D011667:Pulmonary Veins / Q000002:abnormalities* / Q000000981:diagnostic imaging; D011859:Radiography