Validation of fourier amplitude ratio to quantitate valvular regurgitation
| Autor: | P.Todd Makler, David M. McCarthy, Joseph P. Kleaveland, John U. Doherty, Michael G. Velchik |
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| Rok vydání: | 1984 |
| Předmět: |
Adult
Male Cardiac Catheterization medicine.medical_specialty medicine.medical_treatment Aortic Valve Insufficiency Hemodynamics Regurgitation (circulation) Scintigraphy symbols.namesake Heart Rate Internal medicine Humans Medicine cardiovascular diseases Radionuclide Imaging Aged Cardiac catheterization Fourier Analysis medicine.diagnostic_test business.industry Mitral Valve Insufficiency Valvular regurgitation Stroke Volume Stroke volume Middle Aged Fourier transform Fourier analysis cardiovascular system symbols Cardiology Female Cardiology and Cardiovascular Medicine business |
| Zdroj: | Journal of the American College of Cardiology. 3:1482-1487 |
| ISSN: | 0735-1097 |
| DOI: | 10.1016/s0735-1097(84)80287-9 |
| Popis: | It has previously been shown that patients with valvular regurgitation can be identified by the ratio of left and right ventricular amplitude values obtained from first harmonic Fourier analysis of the gated blood pool scan. The present study was designed to validate the accuracy of this technique for quantifying the amount of valvular regurgitation. In a blinded analysis of 19 patients who underwent cardiac catheterization, there was a close correlation between the radionuclide and hemodynamic determination of the amount of regurgitation (r = 0.84). The interobserver agreement for calculating the radionuclide data was also high (r = 0.88). These results suggest that the Fourier ventricular amplitude ratio is an accurate and reproducible technique for quantifying valvular regurgitation by gated blood pool scanning. |
| Databáze: | OpenAIRE |
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