TABLE 4.

Eighteen renogram variables (4 clinical and 14 pharmacokinetic variables)

Index	Variable	Description
1	Age	Range: 18 to 87 years
2-4	Expert’s Score (from 3 experts)	Ranges from −1.0 to 1.0 with higher scores indicating higher likelihood of obstruction
5	Cortical AUC-d1	Area under the first derivative of cortical renogram
6	BL AUC-d1	Area under the first derivative of BL renogram
7	Cortical mv	Minimum velocity (mv) of the cortical renogram
8	BL mv	Minimum velocity (mv) of BL renogram
9	Cortical tminv	Time to minimum velocity (tminv) of cortical renogram
10	BL tminv	Time to minimum velocity (tminv) BL renogram
11	Cortical tmax	Time to maximum (tmax) of cortical renogram
12	BL tmax	Time to maximum (tmax) of BL renogram
13	PF AUC	Area under the PF renogram
14	Pelvis AUC	Area under the renogram of the pelvis region
15	PF max	Maximum (max) of the PF renogram
16	Pelvis max	Maximum (max) of the pelvis renogram
17	lastPF/maxBL	Ratio of PF renogram at last time point to BL max
18	flrstPF/maxBL	Ratio of PF renogram at first time point to BL max

Abbreviations: BL, Baseline; PF, post-furosemide.