title: Large ductal flow may cause high velocity in the descending aorta without coarctation: improved diagnosis using the continuity equation.
abstract: Large ductal flow will increase the flow through the aortic isthmus and may falsely suggest coarctation of the aorta when the Bernoulli equation is applied. The continuity equation (A1 x V1 = A2 x V2) does not depend on unwarranted assumptions, and its use should avoid misdiagnosis.
authors.affiliation: Department of Pediatrics,  University of Washington, Seattle 98195-6320, USA. wgg@u.washington.edu
authors.forename: W G
authors.initials: WG
authors.lastname: Guntheroth
authors.forename: F K
authors.initials: FK
authors.lastname: Forster
mesh_terms: D001013:Aorta, Thoracic / Q000502:physiology; D001017:Aortic Coarctation / Q000000981:diagnostic imaging* / Q000503:physiopathology; D001783:Blood Flow Velocity / Q000502:physiology; D003937:Diagnosis, Differential; D015150:Echocardiography, Doppler; D006801:Humans; D007231:Infant, Newborn; D007234:Infant, Premature; D007235:Infant, Premature, Diseases / Q000000981:diagnostic imaging* / Q000503:physiopathology