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Updated: Apr 21, 2026

Ultrasonography of the Adult Male Urinary Tract for Urinary Functional Testing
Published on: August 14, 2019
Introduction to a new technology for measuring urethral pressures: 3D high-resolution manometry
Anna C Kirby1, Jasmine Tan-Kim, Charles W Nager
1Department of Obstetrics and Gynecology, Division of Urogynecology, University of Washington Medical Center, 1959 NE Pacific St, Box 356460, Seattle, WA, 98195, USA, akirby@uw.edu.
This study introduces a 3D high-resolution manometry system for evaluating urethral pressures in urogynecology. The technology offers new insights into continence mechanisms for women before and after surgery.
Area of Science:
- Urogynecology
- Medical Imaging
- Physiology
Background:
- Urethral pressure measurement is crucial for understanding female continence.
- Current methods may not fully capture dynamic urethral function.
- 3D high-resolution manometry (HRM) offers a novel approach.
Purpose of the Study:
- Introduce a 3D HRM system for urogynecology.
- Demonstrate the acquisition and interpretation of dynamic urethral pressures.
- Evaluate pre- and postoperative women using 3D HRM.
Main Methods:
- Utilized a 3D HRM catheter with circumferentially distributed pressure sensors.
- Constructed 3D pressure maps from individual sensor measurements.
- Demonstrated system output and pressure measurement patterns.
Main Results:
- Presented 3D pressure maps for women with stress urinary incontinence (SUI).
- Showcased results from women post-midurethral sling insertion.
- Analyzed 3D pressure profiles of 44 women to understand urethral physiology.
Conclusions:
- Advanced 3D HRM provides novel insights into urethral pressure dynamics.
- This technology enhances understanding of continence mechanisms in various patient groups.
- Applicable for evaluating women with and without incontinence, and post-surgical outcomes.
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