Determination of Effective Orifice Area in Mitral Stenosis from Non-invasive Ultrasound Doppler Data and Mitral Flow Rate
| Autor: | Rune Aaslid, Knud Landmark, Jarle Holen, Svein Simonsen, Tønnes østrem |
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| Rok vydání: | 2009 |
| Předmět: |
Cardiac Catheterization
medicine.medical_specialty medicine.medical_treatment Blood Pressure Fick method Internal medicine Internal Medicine medicine Humans Mitral Valve Stenosis cardiovascular diseases Cardiac Output Mitral flow Pressure gradient Cardiac catheterization business.industry Effective orifice area Ultrasound Doppler Effect medicine.disease Stenosis Echocardiography cardiovascular system Cardiology Mitral Valve business Blood Flow Velocity Body orifice |
| Zdroj: | Acta Medica Scandinavica. 201:83-88 |
| ISSN: | 0001-6101 |
| DOI: | 10.1111/j.0954-6820.1977.tb15660.x |
| Popis: | Ten patients with mitral stenosis, but without mitral insufficiency, have been studied during cardiac catheterization. The mitral orifice blood velocities, the mitral pressure gradient, and the mitral flow rate were determined with ultrasound, manometry, and the direct Fick method, respectively. The effective orifice area was calculated from the ultrasound data and the mitral flow rate. The geometric orifice area was calculated from the pressure gradient and the mitral flow rate, using a revised Gorlin formula. A comparison of the two methods showed a correlation coefficient of 0.975. The investigation demonstrated that the ultrasound method represents an alternative to the conventional catheterization methods used for the quantification of mitral flow obstruction. |
| Databáze: | OpenAIRE |
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