ISSN:
1615-2573
Keywords:
Aorta
;
Waves
;
Flow deceleration
;
Energy flux
;
Left ventricle
Source:
Springer Online Journal Archives 1860-2000
Topics:
Medicine
Notes:
Summary The determinants of aortic pressure and flow are generally studied using impedance methods, the results of which indicate that reflected waves are important, particularly during aortic flow deceleration. An alternative analysis of measured aortic pressure and velocity, using the method of characteristics to calculate the energy flux per unit area of the waves, suggests a different conclusion. We suggest that aortic deceleration is caused by a discrete expansion wave propagating from the left ventricle, and that energy thus recovered by the ventricle may be coupled to early filling of the ventricle.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF02058593
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