title: Lack of relation between imaging and physiology in ostial coronary artery narrowings.
abstract: This study compared ostial lesion angiographic severity with physiologic assessment and showed that, for diameter narrowings >70%, fractional flow reserves were >0.75 in 20 of 25 lesions and >0.75 in 30 of 30 lesions with <70% diameter narrowings. Using fractional flow reserve in all ostial narrowings > or =70% may prevent patients from undergoing unnecessary interventions.
authors.affiliation: J. Gerard Mudd Cardiac Catheterization Laboratory, St. Louis University Health Sciences Center, 3635 Vista Avenue at Grand Boulevard, St. Louis, MO 63110-0250, USA.
authors.forename: Ali
authors.initials: A
authors.lastname: Ziaee
authors.forename: Walter A
authors.initials: WA
authors.lastname: Parham
authors.forename: Steven C
authors.initials: SC
authors.lastname: Herrmann
authors.forename: Richard E
authors.initials: RE
authors.lastname: Stewart
authors.forename: Michael J
authors.initials: MJ
authors.lastname: Lim
authors.forename: Morton J
authors.initials: MJ
authors.lastname: Kern
mesh_terms: D000241:Adenosine; D006328:Cardiac Catheterization; D002637:Chest Pain / Q000000981:diagnostic imaging / Q000503:physiopathology; D017023:Coronary Angiography; D003326:Coronary Circulation / Q000502:physiology*; D023921:Coronary Stenosis / Q000000981:diagnostic imaging* / Q000503:physiopathology*; D005080:Exercise Test; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged
chemical_list: D000241:Adenosine