[Dynamics of the measurement of urethral pressure in the evaluation of the urethral stress profile].

To obtain exact recordings of the urethral stress profile a pressure rise rate greater than 150 kPa/s is necessary. In this point of view Micro-transducers are advantageous. The different perfusion methods can be improved by the aid of pneumatic-hydraulic infusion systems and low-compliance catheters. Membrane Catheters are involved with some difficulties.