Application of the Continuity Equation and Valve Resistance to the Evaluation of St. Jude Medical Prosthetic Aortic Valve Dysfunction

Application of the Continuity Equation and Valve Resistance to the Evaluation of St. Jude Medical Prosthetic Aortic Valve Dysfunction

Doppler echocardiography was applied to the assessment of patients with surgically documented St. Jude medical aortic valve dysfunction. Derivation of effective orifice area and Doppler velocity index with the continuity equation and calculation of valve resistance accurately differentiated stenotic...

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Veröffentlicht in:The American journal of cardiology 1997-11, Vol.80 (9), p.1239-1242
Hauptverfasser: Saad, Robert M, Barbetseas, John, Olmos, Leopoldo, Rubio, Nelly, Zoghbi, William A
Format: Artikel
Sprache:eng
Schlagworte:
Aortic Valve
Aortic Valve Insufficiency - diagnostic imaging
Aortic Valve Stenosis - diagnostic imaging
Blood Flow Velocity
Coronary vessels
Diagnosis, Differential
Echocardiography, Doppler
Female
Heart
Heart Valve Prosthesis
Humans
Male
Medical imaging
Middle Aged
Prosthesis Design
Prosthesis Failure
Reoperation
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Beschreibung
Zusammenfassung:Doppler echocardiography was applied to the assessment of patients with surgically documented St. Jude medical aortic valve dysfunction. Derivation of effective orifice area and Doppler velocity index with the continuity equation and calculation of valve resistance accurately differentiated stenotic from regurgitant and normal valves.
ISSN:0002-9149
1879-1913
DOI:10.1016/S0002-9149(97)00652-8