PMID: 9160910Jan 1, 1997Paper

Deconvolution process in measurement of arterial velocity profiles via an ultrasonic pulsed Doppler velocimeter for evaluation of the wall shear rate

Ultrasound in Medicine & Biology
P FlaudP Peronneau

Abstract

A numerically based simulation of pulsed Doppler ultrasound convolution and deconvolution of theoretical hemodynamic velocity profiles yields two major conclusions on performing a deconvolution process. First, the most important parameter to be accounted for is the size of the sample volume. Second, a deconvolution process with an overestimated sample volume size is revealed by high-frequency noise on the resulting profile. A deconvolution process is presented for in vivo arterial velocity profiles, which has the advantage of being systematic and not needing experimental testing for determining the size or the shape of the sample volume. It is also independent of the observation angle. Finally, an example of an application to in vivo human velocity profiles is given. Evaluation of the wall shear rate from the corrected deconvolved profiles shows a noticeable improvement with respect to that using the directly convolved Doppler profiles.

References

Aug 1, 1992·Journal of Biomechanical Engineering·R M Nerem
Nov 1, 1990·Journal of Biomechanical Engineering·D N KuH Engels
Feb 16, 1971·Proceedings of the Royal Society of London. Series B, Containing Papers of a Biological Character·C G CaroR C Schroter
Aug 1, 1981·Journal of Biomechanical Engineering·C F DeweyP F Davies
May 1, 1993·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·J BittounP Peronneau

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Citations

Feb 14, 2004·Ultrasound in Medicine & Biology·Valérie RouffiacPierre Peronneau
Feb 5, 2000·European Journal of Ultrasound : Official Journal of the European Federation of Societies for Ultrasound in Medicine and Biology·P TortoliR Muchada
Jun 14, 2000·AJR. American Journal of Roentgenology·A M Shaaban, A J Duerinckx
Feb 26, 2008·Ultrasound in Medicine & Biology·James R BlakePeter R Hoskins
Dec 8, 2004·Ultrasound in Medicine & Biology·Aaron H SteinmanRichard S C Cobbold

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