COMPARATIVE-STUDY OF INTRAVENOUS UROGRAPHIC BOLUS (IUB) AND INTRAVENOUS UROGRAPHIC INFUSION (IUI) IN DOGS

Two urographic methods were compared: the intravenous urographic bolus (i.u.b.) and the intravenous urographic infusion (i.u.i.). In both me thods, two groups of seven healthy adult dogs of both sexes, weighing 7.0 to 16.5 kg were used and were anaesthesized with 2% thiopentone so dium in doses of 20 mg/kg via cephalica. In the i.u.b., meglumine diat rizoate (Hypaque-M, 60%) was injected via saphena with a concentration of 282 mg of iodine per mi in doses of 564 mg of iodine per kg. In th e i.u.i., meglumine diatrizoate was injected via saphena by drip infus ion with a concentration of 200 mg of iodine per mi in doses of 500 mg of iodine per kg. Three series of two X-rays each were taken in ventr odorsal projection 1, 4 and 8 min and left lateral recumbency 30 sec a fter administering the contrast medium. The X-ray plates obtained were analyzed and compared intra and inter group considering the advance s peed of the contrast medium, the radiographic density and outline, and kidney size. The advance speed of the contrast medium was higher in t he i.u.i., reaching the kidney, ureter and bladder 1 min after adminis tration in both projections; in ventrodorsal projections in the i.u.b. only the kidneys were reached while in the left lateral recumbency, t he kidney and ureters were reached.