Correlations between Nephrosonographic Measurements and Some Urinary Component Levels in Canine Unilateral Hydronephrosis

The left ureters of eight adult mongrel dogs were surgically obstructed for 6 weeks. Renal length, width, parenchymal thickness, cortical thickness and pelvic width of the left hydronephrotic kidney were sonographed and measured on a kidney middorsal image before obstruction and one week interval after obstruction. Pelvic urine of the left hydronephrotic kidney were collected simultaneously and the concentrations of urinary components including creatinine, urea-N and potassium were measured. The results revealed that nephrosonographic measurements were significantly related to the levels of each urinary component (P＜0.001). This simple non-invasive imaging technique seems to be clinically useful for assessing renal recovery potential in completely obstructed canine kidney.