title: Low-frequency intracardiac ultrasonographic imaging before and after balloon pulmonary valvuloplasty.
authors.affiliation: Hans Hecht Hemodynamics Laboratory, Department of Medicine, University of Chicago Medical Center, IL 60637.
authors.forename: D F
authors.initials: DF
authors.lastname: Follman
authors.forename: T N
authors.initials: TN
authors.lastname: Levin
authors.forename: R M
authors.initials: RM
authors.lastname: Lang
authors.forename: T
authors.initials: T
authors.lastname: Feldman
authors.forename: J D
authors.initials: JD
authors.lastname: Carroll
mesh_terms: D000328:Adult; D002404:Catheterization / Q000295:instrumentation / Q000379:methods; D004452:Echocardiography / Q000295:instrumentation / Q000379:methods*; D005260:Female; D006801:Humans; D011664:Pulmonary Valve / Q000000981:diagnostic imaging; D011666:Pulmonary Valve Stenosis / Q000151:congenital / Q000000981:diagnostic imaging* / Q000628:therapy