Ultrasonography in stress urinary incontinence.

Evaluation of the urethrovesical junction in stress urinary incontinence is essential. For this reason the Q-tip test, a clinical test with debatable specificity; lateral cystourethrography, a conventional method; and videourethrocystography, a sophisticated method, have been in use. Because ultrasonography is inexpensive, reliable, easy to apply and free of any contrast material and X-ray exposure, it has practically replaced all the former methods in the evaluation of the urethrovesical junction in stress urinary incontinence patients within the last decade.