Table 2.

Functional magnetic resonance results and derived parameters.

	wo F		with F		wo/with F
	Neutral	Flexion	Neutral	Flexion	Neutral	Flexion
	R2* [1/s]
Cortex	17.7 ± 1.8	18.5 ± 1.4	17.3 ± 2.3	17.5 ± 2.2	1.03 ± 0.11	1.04 ± 0.10
p	0.14		0.77		0.53
Medulla	28.3 ± 2.9	27.6 ± 3.6	24.0 ± 3.3	25.1 ± 4.1	1.22 ± 0.17	1.11 ± 0.22
p	0.22		0.23		0.00077
MCR R2*	1.60 ± 0.27	1.48 ± 0.15	1.40 ± 0.20	1.44 ± 0.22	1.17 ± 0.16	1.03 ± 0.14
p	0.015		0.39		0.0036
	ASL [mL/100g/min]
Cortex	299.5 ± 60.1	332.0 ± 66.4	277.6 ± 80.6	336.7 ± 69.8	1.10 ± 0.22	0.98 ± 0.16
p	0.051		0.027		0.16
Medulla	99.2 ± 35.5	139.9 ± 59.8	81.7 ± 22.1	147.6 ± 68.5	1.23 ± 0.59	1.14 ± 0.54
p	0.011		0.0052		0.41
MCR ASL	0.34 ± 0.09	0.44 ± 0.15	0.32 ± 0.11	0.48 ± 0.21	1.10 ± 0.39	1.04 ± 0.42
p	0.026		0.033		0.37
	ADCD [*10−5 mm2/s]
Cortex	208 ± 13	210 ± 13	206 ± 12	211 ± 14	1.01 ± 0.07	0.99 ± 0.05
p	0.5		0.163		0.42
Medulla	208 ± 15	206 ± 15	202 ± 13	208 ± 15	1.03 ± 0.07	0.99 ± 0.07
p	0.95		0.022		0.39
MCR ADC D	1.01 ± 0.06	0.99 ± 0.05	0.98 ± 0.05	0.99 ± 0.07	1.03 ± 0.07	1.01 ± 0.09
p	0.62		0.77		0.8
	FP [%]
Cortex	11.7 ± 3.3	12.9 ± 3.6	11.3 ± 4.2	11.1 ± 4.9	1.06 ± 0.42	1.34 ± 0.50
p	0.5		0.34		0.076
Medulla	5.9 ± 4.6	7.4 ± 4.5	10.1 ± 3.6	10.7 ± 4.0	0.64 ± 0.48	0.80 ± 0.64
p	0.51		0.78		0.66
MCR F P	0.60 ± 0.51	0.54 ± 0.27	0.93 ± 0.35	1.11 ± 0.62	0.72 ± 0.52	0.67 ± 0.53
p	0.63		0.16		0.6

Values are given as mean ± standard deviation. p-values are calculated according to Student's t-test. Wo, without; F, furosemide; neutral/flexion denotes hip position; R2^*, transverse relaxation rate; MCR, medullary to cortical ratio; ASL, arterial spin labeling; ADC_D, pure diffusion coefficient; F_P, fraction of perfusion.