title: Understanding the catheter-Doppler pressure gradient discrepancy in aortic stenosis.
authors.forename: Ramdas G
authors.initials: RG
authors.lastname: Pai
authors.forename: Ajit D
authors.initials: AD
authors.lastname: Pai
mesh_terms: D001021:Aortic Valve / Q000000981:diagnostic imaging* / Q000503:physiopathology*; D001024:Aortic Valve Stenosis / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000503:physiopathology; D001783:Blood Flow Velocity; D001794:Blood Pressure; D006328:Cardiac Catheterization / Q000295:instrumentation; D057785:Catheters; D015150:Echocardiography, Doppler; D006439:Hemodynamics; D006801:Humans; D011237:Predictive Value of Tests; D012039:Regional Blood Flow; D012720:Severity of Illness Index