Related Experiment Video
Updated: May 19, 2026

Evaluation of Biomaterials for Bladder Augmentation using Cystometric Analyses in Various Rodent Models
Published on: August 9, 2012
Traces: making sense of urodynamics testing--Part 11: quantitative analysis of micturition via the voiding pressure
1Department of Urology University of Virginia, Charlottesvile, USA.
Abstract:
The voiding pressure flow study is the gold standard for evaluating micturition. Part 10 of the Traces series described techniques for evaluating micturition via the voiding pressure flow study; it focused on interpretation of results qualitatively via inspection and classification of flow pattern, detrusor contraction amplitude and duration, pelvic floor muscle response to voiding, and urethral resistance. This article discusses quantitative analysis of the voiding pressure flow study using nomograms that measure the magnitude of urethral resistance (bladder outflow obstruction) and/or detrusor contraction strength.
Related Concept Videos
Urodynamic Studies: Uroflowmetry
Imaging Studies VI: Voiding Cystourethrography and Cystography
The Micturition Reflex
The process begins with bladder filling, where the bladder wall stretches as urine accumulates. This stretching activates the urine storage reflex, mediated by the sacral spinal segments and the pontine storage center. Efferent sympathetic impulses stimulate the detrusor muscle to relax and the internal urethral sphincter to contract, facilitating urine...
Physiology of the Genitourinary System III: Urine Concentration and Dilution
Anatomy of the Genitourinary System II: Bladder and Urethra
Imaging Studies II: Ultrasonography

