Drip infusion pyelography-valuable supplement to the inconclusive intravenous pyelogram.

By comparative studies of films, the superiority of infusion pyelography over conventional intravenous pyelography was confirmed.The technique is shown to be safe, even in the presence of uremia, diabetes, cardiovascular disease and advanced age.It is well suited for outpatient use, and should reduce the need for retrograde uretero-pyelography to supplement the diagnostically inconclusive intravenous pyelogram.