TABLE 1

Frequency and Ranking of Rules for RENEX and Expert Agreement in Determining That Furosemide Was Needed and That Kidney Was Obstructed

Kidney	Parameter	Frequency (plotted by rank)	n
Left (n = 9)	Furosemide prevoid–to–baseline maximum ratio	111111112	9
	Furosemide renal pelvis T_1/2	122222233	9
	Furosemide 1 min–to–baseline maximum ratio	2233	4
	Baseline 1–2.5 min relative uptake	334	3
Right (n = 5)	Furosemide prevoid–to–baseline maximum ratio	11111	5
	Furosemide renal pelvis T_1/2	2223	4
	Furosemide 1 min–to–baseline maximum ratio	23	2
	Baseline MAG3 clearance	34	2
	Furosemide whole-kidney T_1/2	2	1