title: Retrograde pulmonary vein wedge angiography: a new technique.
abstract: A new technique of pulmonary vein wedge angiography to delineate pulmonary artery anatomy is described. Conventional pulmonary vein wedge angiography requires an interatrial communication--natural or created by a transseptal puncture. In retrograde pulmonary vein wedge angiography, the left atrium and pulmonary veins are entered from arterial route using a specially designed catheter. This technique can be specially utilized for patients in whom there is no interatrial communication.
mesh_terms: D000293:Adolescent; D000792:Angiography / Q000295:instrumentation*; D006328:Cardiac Catheterization / Q000295:instrumentation*; D002404:Catheterization / Q000295:instrumentation; D003287:Contrast Media; D003974:Diatrizoate Meglumine; D006801:Humans; D008297:Male; D008946:Mitral Valve Stenosis / Q000000981:diagnostic imaging / Q000628:therapy; D011183:Postoperative Complications / Q000000981:diagnostic imaging / Q000628:therapy; D011651:Pulmonary Artery / Q000000981:diagnostic imaging*; D011667:Pulmonary Veins / Q000000981:diagnostic imaging*; D013771:Tetralogy of Fallot / Q000000981:diagnostic imaging* / Q000601:surgery
chemical_list: D003287:Contrast Media; D003974:Diatrizoate Meglumine