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. Author manuscript; available in PMC: 2016 Aug 17.
Published in final edited form as: J Magn Reson Imaging. 2008 May;27(5):970–977. doi: 10.1002/jmri.21320

Table 2.

Perfusion Signal Difference using θ = ±60°

Subject Perfusion Signal Difference (%)
θ = +60° θ = −60°
GM
WM
GM
WM
Left Right Left Right Left Right Left Right
1 0.10 0.75 −0.07 0.07 0.84 0.09 0.03 0.02
2 −0.05 1.51 −0.03 0.28 1.31 0.04 0.20 0.13
3 0.03 0.71 −0.02 0.11 0.81 0.01 0.33 0.05
4 −0.02 0.68 0.03 0.19 0.73 0.05 0.05 −0.03
5 0.08 0.66 0.05 0.20 0.80 0.12 0.17 0.04
6 0.13 0.85 −0.07 0.12 1.09 0.08 0.18 0.04
7 0.12 1.46 0.04 0.11 1.22 0.28 0.17 0.05
8 0.08 0.83 0.03 0.09 0.75 0.11 0.13 0.01
9 0.02 0.74 0.00 0.10 0.92 0.12 0.13 0.02
10 0.14 0.76 0.04 0.14 0.77 0.24 0.05 −0.04
11 0.14 0.61 0.03 0.04 0.81 0.21 0.14 −0.02
12 0.06 0.92 0.06 0.14 1.04 0.52 0.06 −0.02
13 0.08 0.93 0.04 0.21 0.99 0.20 0.14 0.03
14 0.03 0.42 0.11 0.06 0.44 0.18 0.00 −0.02
Mean±SD 0.07±0.06 0.85±0.30 0.02±0.05 0.13±0.07 0.89±0.22 0.16±0.13 0.13±0.08 0.02±0.04

All values were derived from equally-sized ROIs placed either in the left or the right brain hemisphere. Negative values are due to small perfusion signal relatively to noise level.