Model-based estimation of urethral resistance and elasticity using urodynamic pressure-flow data

O. Barnea*, G. Gillon

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

A lumped parameter model of the urethra was developed to assess urethral resistance and changes in urethral elasticity during voiding using pressure and flow measurements. The model includes a pressure drop due to rapid velocity change in the constricted flow-controlling zone and urethral elasticity relating cross-sectional area with pressure. Using real pressure-flow data sets, the model was used to estimate urethral resistance and changes in urethral elasticity during voiding. Results show that it is possible to obtain resistance and estimate changes in elasticity during voiding from the pressure and flow. Estimations of elasticity show that in the normal patient relaxation of the urethra is a process that continues until end of voiding. This has important implications regarding present methods that are used in the clinic to assess urethral obstruction or constriction.

Original languageEnglish
Title of host publicationAnnual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings
PublisherIEEE
Pages873
Number of pages1
ISBN (Print)0780356756
StatePublished - 1999
EventProceedings of the 1999 IEEE Engineering in Medicine and Biology 21st Annual Conference and the 1999 Fall Meeting of the Biomedical Engineering Society (1st Joint BMES / EMBS) - Atlanta, GA, USA
Duration: 13 Oct 199916 Oct 1999

Publication series

NameAnnual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings
Volume2
ISSN (Print)0589-1019

Conference

ConferenceProceedings of the 1999 IEEE Engineering in Medicine and Biology 21st Annual Conference and the 1999 Fall Meeting of the Biomedical Engineering Society (1st Joint BMES / EMBS)
CityAtlanta, GA, USA
Period13/10/9916/10/99

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