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Related Experiment Video

Updated: May 31, 2026

Ultrasonography of the Adult Male Urinary Tract for Urinary Functional Testing

Ultrasonography of the Adult Male Urinary Tract for Urinary Functional Testing

Published on: August 14, 2019

Recording urinary flow and lower urinary tract symptoms using sonouroflowmetry.

Katarina Zvarova¹, Michal Ursiny, Timothy Giebink

¹Department of Surgery, University of Vermont College of Medicine, Burlington, USA.

The Canadian Journal of Urology

|June 28, 2011

Summary

Sonouroflow (SUF) offers accurate at-home urinary flow rate assessment, comparable to standard uroflowmetry. This portable system shows reduced test-to-test variability, indicating potential for clinical use in managing lower urinary tract symptoms.

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Published on: January 30, 2018

Area of Science:

Urology
Medical Devices
Diagnostic Technology

Background:

Lower urinary tract symptoms (LUTS) and urinary flow rate are key indicators of bladder function.
Conventional uroflowmetry is the standard diagnostic method but requires clinic visits.
There is a need for accurate, convenient at-home monitoring solutions.

Purpose of the Study:

To evaluate the accuracy of the at-home, wireless sonouroflow (SUF) system.
To compare the test-to-test variability of SUF with conventional uroflowmetry.
To assess the feasibility of integrating LUTS recording with flow parameters.

Main Methods:

A pilot study assessed the technical feasibility of the SUF system.
Test-to-test variability was compared between SUF recordings (SUFm) and standard uroflowmetry.
SUF tests were conducted at home by subjects, while uroflowmetry was performed in a clinical setting.

Main Results:

94% of male SUF recordings showed normal flow curves; female results showed variability.
SUFm had significantly lower test-to-test variability for voiding time (p < 0.001).
Maximum flow rate and time to maximum flow showed reduced variability in a majority of subjects using SUF.

Conclusions:

The sonouroflow system is user-friendly and provides results comparable to standard uroflowmetry.
SUF demonstrates lower test-to-test variability for key flow parameters.
The system's ability to integrate LUTS and flow data suggests significant clinical potential for remote patient monitoring.