[Perineal sonography: using time modulated 2D-ultrasound in a freehand 3D technique]

The employment of a new transperineal ultrasound technique, which demonstrates the dynamics of the temporal change in the positions of the urethra and bladder under standardized Valsalva pressure, was evaluated with regards to the possibility of diagnosing and classifying the various types of descension.

Transperineal ultrasound using a 3 - 5 MHz Curved array transducer was performed on 21 female patients with urinary incontinence. The results were compared with the clinical examinations and the urodynamic measurements.

17 of 21 profiles could be clearly classified as either rotatory or vertical descension types. 2 of the profiles could not be classified due to lack of patient cooperation, and 2 could not be classified due to technical problems.

This new method allows a safe diagnosis of the descension types in most cases. All dynamics of the examination can be documented.