ABSTRACT
I. INTRODUCTION Fleming Mattox (1), in an editorial published in 1994 in Ultrasound in Obstetrics and Gynecology, noted that almost all gynecologists and obstetricians use ultrasonography in their everyday practice, but only a few academic centers apply this imaging modality to study stress urinary incontinence (SUI) and pathology of the pelvic floor. He estimated that this was probably because ultrasound could give little additional information, except for postvoid residual determination (which can also easily be done by catheterization) and the position and mobility of the bladder neck (which can be documented with a much better cost/benefit ratio by the Q-tip test).
