[Double contrast retrograde urethrography using viscous and gaseous contrast media in men].

The authors present the literature and their own data on the use of a double contrast study of the urethra in 38 male patients with dysuria of various etiology. The investigations were performed with roentgeno-television control using viscid contrast substances (propyliodone) and gel-like triiodinated liquid contrast media (verografin, urografin, triombrast, etc.). A high informative value of the method in the detection of pathological changes in the urethra and the neck of the urinary bladder, lesser risk of the development and lesser severity of urethro-venous refluxes were noted.