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A Prospective Comparative Study of Mobile Acoustic Uroflowmetry and Conventional Uroflowmetry

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Abstract
Purpose: The aim of this study was to assess the performance of a mobile acoustic Uroflowmetry (UFM) application compared
with standard UFM in the pediatric population.
Methods: A mobile acoustic UFM application represents a noninvasive method to estimate the urine flow rate by recording
voiding sounds with a smartphone. Male pediatric patients who were undergoing UFM testing were prospectively recruited,
and the voiding sounds were recorded and analyzed. The intraclass correlation coefficient (ICC) was used to compare the
maximum flow rate (Qmax), average flow rate (Qavg), voiding time (VT), and voiding volume (VV) as estimated by acoustic
UFM with those calculated by standard UFM. Differences in Qmax, Qavg, VT, and VV between the 2 UFM tests were determined
using 95% Bland-Altman limits of agreement.
Results: A total of 16 male patients were evaluated. Their median age was 9 years. With standard UFM, the median Qmax,
Qavg, VT, and VV were 18.7 mL/sec, 11.1 mL/sec, 15.2 seconds, and 157.8 mL, respectively. Strong correlations were observed
between the 2 methods for Qmax (ICC=0.755, P=0.005), VT (ICC=0.974, P<0.001), and VV (ICC=0.930, P<0.001), but
not for Qavg (ICC=0.442, P=0.135). The Bland-Altman plot showed good agreement between the 2 UFM tests. Flow patterns
recorded by acoustic UFM and conventional UFM showed good visual correlations.
Conclusions: Acoustic UFM was comparable to standard UFM for male pediatric patients. Further validation of its performance
in different toilet settings is necessary for broader use.
Author(s)
송상훈이동기Chester J. KohJonathan GerberNicolette JanzenPaul F. Austin
Issued Date
2021
Type
Article
Keyword
UrodynamicsMobile applicationsSoundSoftware
DOI
10.5213/inj.2142154.077
URI
https://oak.ulsan.ac.kr/handle/2021.oak/7493
https://ulsan-primo.hosted.exlibrisgroup.com/primo-explore/fulldisplay?docid=TN_cdi_nrf_kci_oai_kci_go_kr_ARTI_9906211&amp;context=PC&amp;vid=ULSAN&amp;lang=ko_KR&amp;search_scope=default_scope&amp;adaptor=primo_central_multiple_fe&amp;tab=default_tab&amp;query=any,contains,A%20Prospective%20Comparative%20Study%20of%20Mobile%20Acoustic%20Uroflowmetry%20and%20Conventional%20Uroflowmetry&amp;offset=0&amp;pcAvailability=true
Publisher
International Neurourology Journal
Location
대한민국
Language
영어
ISSN
2093-4777
Citation Volume
25
Citation Number
4
Citation Start Page
355
Citation End Page
363
Appears in Collections:
Medicine > Medicine
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