KAFKAS UNIVERSITESI VETERINER FAKULTESI DERGISI, cilt.16, sa.5, ss.735-741, 2010 (SCI-Expanded)
The aim of this study was to compare diagnostic efficiency of excretory urography (EU), ultrasonography-guided percutaneous
antegrade pyelography (UGPAP), and renal Doppler ultrasonography (DUS) in New Zealand rabbits (n= 20) experimentally induced
unilateral partial ureteral obstruction. The resistive index (RI) value was obtained from all rabbits prior to the induction. A partial
ureteral obstruction was created on the left ureter by laparotomy in all rabbits. Applications of direct renal DUS and renal DUS after
furosemide administration were performed on days 1 and 10 post-operation. Rabbits were divided into two groups. Rabbits in the
first group were subjected to EU, whereas those in the second group were subjected to UGPAP. The obstructive point was successfully
determined all rabbits in the EU group on both days 1 and 10 post-operation, whereas in 8 rabbits on day 1 post-operation and all
rabbits on day 10 post-operation in the UGPAP group. On both measurements, the mean RI values of the obstructed and nonobstructed kidneys were different (0.567 vs. 0.494; P<0.001). The RI value of non-obstructed kidneys decreased further with
furosemide administration. The mean RI difference (RIΔ) after furosemide administration increased. In conclusion, in addition to EU
and UGPAP, commonly used imagining methods in veterinary medicine, renal DUS after diuretic administration should be performed
as a non-invasive technique to increase diagnostic efficiency of unilateral partial ureteral obstruction.