Abstract
The merits of radiological examination for functional evaluation of urethral strictures of the anterior male urethra were studied by comparing the results of combined retro- and antegrade urethrography with the patient's maximum urinary flow-rate. A correlation was found between stricture diameter and maximum flow-rate (r=0.67) and a still higher correlation between the ratio stricture diameter-prestenotic urethral diameter and the flow-rate (r=0.73). A low but significant (p less than 0.05) negative correlation was obtained between the prestenotic urethral diameter and the flow-rate (r=0.25).
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