Beyond Bernoulli: improving accuracy and precision of non-invasive peak pressure drops
Background—Transvalvular peak pressure drops are routinely assessed non-invasively by echocardiography using the Bernoulli principle. However, the Bernoulli principle relies on a number of approximations, that may not be appropriate, including that the majority of the pressure drop is due to the spatial acceleration of the blood flow, and the ejection jet is a single streamline (single peak velocity value).
Methods and Results—We assessed the accuracy of Bernoulli principl...Expand abstract
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