. Author manuscript; available in PMC: 2014 Nov 1.

Published in final edited form as: Magn Reson Med. 2012 Nov 28;70(5):10.1002/mrm.24561. doi: 10.1002/mrm.24561

Table 1.

Measurements of off-resonance and artery-to-vein and artery-to-muscle CNRs.

	Off-resonance (Hz)		A/V CNR		A/M CNR

	Mean ±SD	95% CI	Reference	Proposed	Reference	Proposed
Subject 1	−4.9 ± 38.5	[−80.4, 70.6]	58.0 ± 25.1	68.8 ± 9.3	63.4 ± 25.2	77.9 ± 14.7
Subject 2	−13.9 ± 40.5	[−93.3, 65.5]	69.0 ± 27.1	77.1 ± 12.9	57.5 ± 31.7	75.0 ± 11.9
Subject 3	1.7 ± 35.0	[−67.9, 71.3]	53.1 ± 19.2	74.2 ± 10.8	66.1 ± 29.6	82.4 ± 17.3
Subject 4	4.4 ± 35.5	[−65.2, 74.0]	52.3 ± 18.8	61.0 ± 10.9	52.2 ± 21.6	69.7 ± 9.4

All	−3.2 ± 38.2	[−78.1, 71.7]	61.7 ± 22.7	71.0 ± 11.4	58.5 ± 27.8	75.3 ± 12.1
P-value			0.0017		< 0.001

Note: A/V = artery-to-vein, A/M = artery-to-muscle, SD = standard deviation, CI = confidence interval. 95% CI was computed as [mean-1.96×SD, mean+1.96×SD].