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Related Experiment Video

Updated: Jun 16, 2026

Optimizing Mouse Urodynamic Techniques for Improved Accuracy

Optimizing Mouse Urodynamic Techniques for Improved Accuracy

Published on: June 7, 2024

Continuous uroflow cystometry in the urethane-anesthetized mouse.

Phillip P Smith¹, George A Kuchel

¹Department of Surgery, University of Connecticut Health Center, Farmington, CT 06030, USA. ppsmith@uchc.edu

Neurourology and Urodynamics

|February 4, 2010

Summary

This summary is machine-generated.

A new non-gravimetric method allows continuous urine collection during mouse cystometry. This technique reliably measures voided volume and flow rate, enhancing lower urinary tract research.

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Area of Science:

Urology
Physiology
Animal Models

Background:

In vivo animal cystometry is crucial for studying lower urinary tract physiology.
Mouse models offer genetic diversity for research but face challenges with small voided volumes.
Gravimetric methods are unreliable for precise pressure-flow data due to discontinuous urine release.

Purpose of the Study:

To assess the feasibility of a non-gravimetric continuous urine collection system during mouse cystometry.
To compare cystometry data between urethane-anesthetized and awake female mice.
To improve the reliability of pressure-flow data in mouse models.

Main Methods:

Cystometry performed in awake and urethane-anesthetized female mice via a suprapubic tube.
A novel non-gravimetric system for continuous urine collection and flow rate calculation.
Comparison of pressure and time-related variables between anesthetic conditions.

Main Results:

The non-gravimetric system provided complete and continuous urine collection.
Mean voided volume was 0.09 mL with an average flow rate of 0.029 mL/sec.
Urethane anesthesia minimally impacted micturition reflexes but delayed pressure/volume responses.

Conclusions:

Suprapubic voiding cystometry with non-gravimetric collection is feasible in mice under urethane anesthesia.
This method integrates voided volumes with pressure and time data for enhanced analysis.
The improved mouse model aids in in vivo assessment of detrusor and sphincteric function.