[Five-minute urogram: is it sufficient for a diagnosis?].

It has been demonstrated, studying in retrospect a great number of urographies, that the most reliable urogram is the 5 minute urogram (5-U) after the end of the infusion of ionic contrast medium. The authors therefore, in order to save costs and dose to the population, suggest to simplify the urographical routine examination executing only 5-U. This is suggested especially in urographical evaluation of urolithiasis, urinary tract infections, prostate pathology, pelvic masses, pathologies in which 5-U is highly reliable. Very important is the immediate evaluation of 5-U, that allows to complete the urographical examination when necessary.