Agreement between simple catheter method and 3D transperineal ultrasound for assessing urethral length measurement before stress urinary incontinence treatment.

Findings of this study, reveal an excellent agreement between a simple catheter technique and ultrasound assessment for measuring urethral length, with a small mean bias and clinically acceptable limits of agreement. This provides relevant information in clinical practice for determining optimal placement of periurethral material or mid-urethral tape for SUI treatment.