Experience with a newly developed automatic uroflowmeter.

An automatic cabin uroflowmeter was developed in order to guarantee the privacy of the patient, to simplify the measurement, and in particular, for screening. The meter is based on the method of von Garrelts, and the registration is performed with a music cassette. After an extensive calibration, 76 measurements from 22 persons without urologic complaints and 42 measurements from patients were analyzed. The obtained values of the control group, as well as those of the patient group were comparable to the data mentioned in literature. A normogram is presented correlating maximum flow rate and voided volume.