Mobile sonouroflowmetry using voiding sound and volume

Uroflowmetry (UF) is a common clinic-based non-invasive test to diagnose Lower Urinary Tract Dysfunction (LUTD). Accurate home-based uroflowmetry methods are needed to conveniently conduct repeated uroflowmetries when patients are physiologically ready to urinate. To this end, we propose and evaluat...

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Bibliographic Details
Published in:Scientific reports 2021-05, Vol.11 (1), p.11250-11250, Article 11250
Main Authors: El Helou, Elie, Naba, Joy, Youssef, Karim, Mjaess, Georges, Sleilaty, Ghassan, Helou, Samar
Format: Article
Language:English
Subjects:
692/4025
692/4025/1334
Humanities and Social Sciences
multidisciplinary
Science
Science (multidisciplinary)
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Summary:Uroflowmetry (UF) is a common clinic-based non-invasive test to diagnose Lower Urinary Tract Dysfunction (LUTD). Accurate home-based uroflowmetry methods are needed to conveniently conduct repeated uroflowmetries when patients are physiologically ready to urinate. To this end, we propose and evaluate a novel mobile sonouroflowmetry (SUF) method that estimates the urinary flow rate from a sound signal recorded using a mobile phone. By linearly mapping the total sound energy to the total voided volume, the sound energy curve is transformed to a flow rate curve allowing the estimation of the flow rate over time. An evaluation using data from 44 healthy young men showed high similarity between the UF and SUF flow rates with a mixed-effects model correlation coefficient of 0.993 and a mean root mean square error of 2.37 ml/s. Maximum flow rates were estimated with an average absolute error of 2.41 ml/s. Future work on mobile uroflowmetry can use these results as an initial benchmark for flow rate estimation accuracy.
ISSN:2045-2322
2045-2322
DOI:10.1038/s41598-021-90659-9