Urodiagrams: A New Method of Uroflow Pattern Analysis

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Abstract
Uroflow diagrams, obtained by plotting the mean flow rate at 1-s intervals for controls and patients with bladder outflow obstruction, were studied in 60 healthy controls and 100 patients. Standard patterns were obtained for male and female controls in 3 different age groups and for patients with various types of lower urinary tract obstruction. Outflow diagrams in age- and sex-matched controls were compared to those obtained from patients, indicating the nature and the site of obstruction.