Noninvasive apparatus and method for the determination of cardiac valve function
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United States of America Patent
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Nov 21, 2000
Grant Date -
N/A
app pub date -
Jul 2, 1998
filing date -
Jul 2, 1998
priority date (Note) -
Expired
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Abstract
A method and device for determining a plurality of cardiovascular parameters are described, wherein the parameters are determined from noninvasively obtained data, thereby obviating the need for invasive procedures such as cardiac catheterization. These determinations are enabled by incorporating fluid dynamics and thermodynamics equations with nonivasively obtained mechanical cardiac event data to estimate a desired cardiovascular parameter. Exemplary parameters obtainable with the method and device include aortic and mitral valve areas, cardiac left ventricular stroke volume, and aortic and mitral valve pressure gradients.
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