Rigidity of the Resting Female Urethra. Part I. Static Measurements

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Abstract
A new probe was used to examine 16 female volunteers.The probe makes possible recording of related values of induced increasing and decreasing urethral pressures, and cross-sectional area in the resting female urethra. From diagrams showing these relationships urethral rigidity, defined as the change in urethral pressure divided by the change in cross-sectional area, and urethral hysteresis can be calculated. The study demonstrates the quantitities and the significance of urethral rigidity and hysteresis during pressure measurements in the urethra.