Correlation of ultrasound bladder vibrometry assessment of bladder compliance with urodynamic study results

The objective of this study is to assess correlation between bladder wall mechanical properties obtained by ultrasound bladder vibrometry (UBV) and urodynamic study (UDS) measurements in a group of patients undergoing clinical UDS procedure. Concurrent UBV and UDS were performed on 70 patients with...

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Bibliographic Details
Published in:PloS one 2017-06, Vol.12 (6), p.e0179598-e0179598
Main Authors: Bayat, Mahdi, Kumar, Viksit, Denis, Max, Webb, Jeremy, Gregory, Adriana, Mehrmohammadi, Mohammad, Cheong, Mathew, Husmann, Douglas, Mynderse, Lance, Alizad, Azra, Fatemi, Mostafa
Format: Article
Language:English
Subjects:
Adult
Aged
Biology
Biology and Life Sciences
Biomedical engineering
Bladder
Correlation
Correlation analysis
Engineering
Female
Ferroelectrics
Group velocity
Humans
Male
Mathematical analysis
Mechanical properties
Medicine and Health Sciences
Middle Aged
Models, Biological
Modulus of elasticity
Patients
Physical Sciences
Physiological aspects
Physiology
Pressure
Pressure measurement
Research and Analysis Methods
Standard deviation
Thyroid gland
Ultrasonic imaging
Ultrasonography
Ultrasound
Urinary bladder
Urinary Bladder - diagnostic imaging
Urinary Bladder - physiopathology
Urinary Bladder, Neurogenic - diagnostic imaging
Urinary Bladder, Neurogenic - physiopathology
Urinary tract physiology
Urine
Urodynamics
Urology
Velocity
Viscoelasticity
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Summary:The objective of this study is to assess correlation between bladder wall mechanical properties obtained by ultrasound bladder vibrometry (UBV) and urodynamic study (UDS) measurements in a group of patients undergoing clinical UDS procedure. Concurrent UBV and UDS were performed on 70 patients with neurogenic bladders (56 male and 14 female). Bladder wall mechanical properties measured by UBV at different filling volumes were correlated with recorded detrusor pressure (Pdet) values. Mean, median and standard deviation of correlation values were calculated and the significance of these observations was tested. Bladder wall mechanical properties obtained by UBV as group velocity squared and elasticity showed high correlations with Pdet measured at different volumes (median correlation 0.73, CI: 0.64-0.80 and 0.72, CI: 0.56-0.82 respectively). The correlation of group velocity squared and elasticity with Pdet were both significantly higher than 0.5. The results of this study suggest that UBV can closely monitor changes in bladder wall mechanical properties at different volumes in a group of patients undergoing UDS. The high correlation between UBV parameters and detrusor pressure measurements suggests that UBV can be utilized as a reliable and cost-effective tool for assessment of the bladder wall mechanical changes in a noninvasive fashion.
ISSN:1932-6203
1932-6203
DOI:10.1371/journal.pone.0179598