Forward and backward waves in the arterial system: impedance or wave intensity analysis?
Both impedance analysis and wave intensity analysis are used to separate measured pressure and flow waveforms into their forward and backward components. The separation is sensitive to the characteristic impedance or wave speed determined from the data. In all other aspects, the results are identical.
Hughes
A D
AD
International Centre for Circulatory Health, NHLI, Imperial College, London, UK. a.hughes@imperial.ac.uk
Parker
K H
KH
D001783:Blood Flow Velocity / Q000502:physiology; D001794:Blood Pressure / Q000502:physiology; D003627:Data Interpretation, Statistical; D006801:Humans; D008955:Models, Cardiovascular; D011673:Pulsatile Flow / Q000502:physiology*; D014655:Vascular Resistance / Q000502:physiology