char = A;code = 65
A hybrid approach for quantification of aortic valve stenosis using cardiac magnetic resonance imaging and echocardiography: comparison to right heart catheterization and standard echocardiography.char = W;code = 87
Publication: Clin Res Cardiol 2006 Mar ;95(3)::162-7.
Publication Date: 2006 Mar
Study Author(s): Haghi, D;Suselbeck, T;Fluechter, S;Kalmar, G;Schroder, M;Kaden, J J;Poerner, T;Borggrefe, M;Papavassiliu, T;
Institution: I. Medizinische Klinik, Universitätsklinikum Mannheim, 68167, Mannheim, Germany.
[email protected]
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We replaced Doppler-derived stroke volume in the continuity equation (method A) by either right heart catheterization-derived stroke volume (method B) or cardiovascular magnetic resonance-derived stroke volume (method C) to calculate aortic valve area in 20 consecutive patients with moderate or severe aortic stenosis. Comparison of both hybrid methods (methods B and C) by Bland-Altman analysis showed a mean difference near zero, a spread within two standard deviations and very similar limits of agreement. More importantly, all patients were classified into the same category of severity by both methods.
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