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  • Title: [Echographic investigation of normal and pathological voiding (author's transl)].
    Author: Bergmann H, Sutter A, Bergmann M.
    Journal: Urologe A; 1980 Jan; 19(1):50-3. PubMed ID: 6153481.
    Abstract:
    A new urodynamic method is described which is based upon the principle of measuring the anteroposterior diameter of the urinary bladder during micturition by ultrasound. A 4 MHz transducer is placed vertically on the abdominal wall 6 to 7 cm above the symphysis and kept in a constant position by means of a special device. The continuously decreasing bladder diameter during micturition is recorded by M-mode echography (Echopan K, Siemens) and plotted as a diameter-time curve. Normals can be differentiated from patients with a subvesical outflow obstruction or a neurogenic disturbance of bladder emptying. For quantification the mean velocity of bladder diameter shortening during the first 30 seconds of micturition is calculated and correlated with the maximal uroflow (r = 0,77). Therefore a rough quantitative measurement of micturition seems to be possible.
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