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Updated: Jun 6, 2026

Ultrasonography of the Adult Male Urinary Tract for Urinary Functional Testing
Published on: August 14, 2019
[Diagnosis of lower urinary tract voiding dysfunction with video-urodynamic studies]
Peng Zhang1, Zhi-Jin Wu, Yong Yang
1Department of Urology, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China. seabottlezp@126.com
Video-urodynamics (VUD) precisely diagnoses lower urinary tract voiding dysfunction by combining pressure-flow data and real-time imaging. This aids in accurate diagnosis and effective treatment planning for various bladder conditions.
Area of Science:
- Urology
- Diagnostic Imaging
- Functional Urology
Context:
- Lower urinary tract voiding dysfunction affects numerous patients.
- Accurate diagnosis is crucial for effective management.
- Traditional diagnostic methods may have limitations.
Purpose:
- To evaluate the diagnostic role of video-urodynamics (VUD) in lower urinary tract voiding dysfunction.
- To assess the effectiveness of VUD in differentiating various voiding dysfunctions.
Summary:
- 115 patients with voiding dysfunction underwent VUD.
- Diagnoses included neurogenic bladder (37 patients) and non-neurogenic dysfunction (59 patients).
- VUD identified specific conditions like detrusor areflexia, overactive bladder, bladder outlet obstruction, and detrusor-external sphincter dyssynergia.
Impact:
- VUD provides precise diagnostic evidence for lower urinary tract voiding dysfunction.
- The combination of pressure-flow data and real-time imaging enhances diagnostic accuracy.
- Findings support VUD's utility in guiding treatment strategies for bladder dysfunction.
Related Concept Videos
Urodynamic Studies: Uroflowmetry
Imaging Studies VI: Voiding Cystourethrography and Cystography
Imaging Studies V: Intravenous Urography and Retrograde Pyelography
Imaging Studies II: Ultrasonography
Urine Studies I: Urinalysis
Anatomy of the Genitourinary System II: Bladder and Urethra

