title: Transesophageal echocardiographic findings of quadricuspid aortic valve.
abstract: We report a case of a 40-year-old man who had a quadricuspid aortic valve associated with aortic regurgitation. The anomaly was revealed by transesophageal echocardiography (TEE), and confirmed by cardiac surgery. TEE is a useful noninvasive method for identifying the quadricuspid aortic valve.
authors.affiliation: Research Institute of Angiocardiology and Cardiovascular Clinic, Faculty of Medicine, Kyushu University, Fukuoka, Japan.
authors.forename: C P
authors.initials: CP
authors.lastname: Lai
authors.forename: S
authors.initials: S
authors.lastname: Koyanagi
authors.forename: J
authors.initials: J
authors.lastname: Sadoshima
authors.forename: A
authors.initials: A
authors.lastname: Takeshita
authors.forename: K
authors.initials: K
authors.lastname: Tokunaga
mesh_terms: D000328:Adult; D001021:Aortic Valve / Q000002:abnormalities* / Q000000981:diagnostic imaging / Q000473:pathology; D004452:Echocardiography; D006801:Humans; D008297:Male