Table 3. Comparison of GFR values obtained by MRI and FITC-sinistrin techniques in UNX SD rats.

UNX SD	GFR [ml/min]
	transcutaneous FITC-sinistrin clearance	DCE-MRI
1	2.30	0.59
2	2.78	1.33
3	1.16	0.84
4	1.40	1.21
5	3.11	1.55
6	3.32	1.50
Mean (sd)	2.34 (± 0.9)	1.17 (± 0.38)

Mean GFR between methods differ by a factor of two.