Influence of Early Bladder Imaging in Experimental Rabbits on the Quantitative Determination of Glomerular Filtration Rate by the Gates Method

Table 3

Comparison between renal GFR corrected by bladder radioactivity and uncorrected renal GFR.

Obstruction	Kidney	GFR based on 1-2 min (ml/min)					GFR based on 2-3 min (ml/min)
			Uncorrected	Corrected				Uncorrected	Corrected
No obstruction	Total	40			1.776	0.084	35			3.421	0.002
	Left	40			1.776	0.084	35			3.340	0.002
	Right	40			1.776	0.084	35			3.489	0.001
Right ureteral obstruction	Total	165			1.803	0.073	123			7.004	<0.001
	Left	165			1.842	0.067	123			7.001	<0.001
	Right	165			1.000	0.319	123			1.000	0.319

Notes: GFR—glomerular filtration rate; —number of dynamic renal scintigraphy scans presenting the partial or entire bladder in the field of view and having no bladder radiotracer uptake in 1-2 min plus those presenting the entire bladder in the field of view and having bladder radiotracer uptake at 1-2 min; —number of dynamic renal scintigraphy scans presenting the partial or entire bladder in the field of view and having no bladder radiotracer uptake at 2-3 min plus those presenting the entire bladder in the field of view and having bladder radiotracer uptake in 2-3 min.