泌尿器科領域におけるrapid sequence intravenous urographyの応用について(第1報)

Abstract

Intravenous urography has been used primarily as a screening procedure for the examination of the urinary tract. It is well known that intravenous urography is only one clinical examination for bringing about the morphological and functional information at the same time. Although many modifications in the method of intravenous urography have been reported and their morphology have been mainly discussed. Therefore, we have been trying to find the usefulness of rapid sequence intravenous urography (RS-IVU) in urological practice. For this study, the result of 158 RS-IVUs of 153 healthy cases was investigated. These cases were classified into two groups; the lower age group (from 15 years to 59 years old) and the upper age group (over 60 years old). The results were as follows; 1. Nephrograms with diagnostic qualities were obtained in 94% (lower age group-96% and per age group-9l %) at 30 seconds films. Nephrographic density in the upper age group was much upless than that in the lower age group. 2. The appearance of contrast material into the calyceal system during the first minute was quicker in the upper age group (10%) than in the lower age group (2%). 3. Collecting systems of diagnostic quality were obtained in 98% of the cases (lower age group-99% and upper age group-96%l at 3 minutes. Urographic density in the upper age group was less than that in the lower age group.