Estimation of urinary flow velocity in models of obstructed and unobstructed urethras by decorrelation of ultrasound radiofrequency signals

Muhammad Arif, Tim Idzenga, Ron Mastrigt, CL (Chris) de Korte

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9 Citations (Scopus)

Abstract

The feasibility of estimating urinary flow velocity from the decorrelation of radiofrequency (RF) signals was investigated in soft tissue-mimicking models of obstructed and unobstructed urethras. The decorrelation was studied in the near field, focal zone and far field of the ultrasound beam. Furthermore, the effect of beam width was investigated. The results of this study suggest that it is feasible to estimate flow velocity in models of the urethra by quantifying the decorrelation of RF ultrasound signals. The decorrelation slope increased more rapidly and more linearly with increasing velocity in the focal zone than in the near and far field. A preliminary example of an in vivo measurement in a healthy volunteer illustrated that this method has potential for clinical use in the future. (E-mail: a.muhammad@erasmusmc.nl) (C) 2014 World Federation for Ultrasound in Medicine & Biology.
Original languageUndefined/Unknown
Pages (from-to)938-946
Number of pages9
JournalUltrasound in Medicine and Biology
Volume40
Issue number5
DOIs
Publication statusPublished - 2014

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