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. Author manuscript; available in PMC: 2020 May 1.
Published in final edited form as: Neuroimage. 2019 Mar 3;191:537–548. doi: 10.1016/j.neuroimage.2019.02.059

Table 2.

Quantification, tissue fractions and (TE = 68 ms) water data quality metrics, displayed by site and by vendor (shown as mean ± 1 standard deviation (CV)).

Site ID GABA+ (i.u.) MM-s GABA (i.u.) Cr (i.u.) fGM,vol fWM,vol fCSF,vol Water fit error (%) Water linewidth (Hz)
G1 3.33 ± 0.20 (6.1%) 4.40 ± 0.61 (13.9%) 11.69 ± 1.00 0.60 ± 0.05 0.26 ± 0.04 0.14 ± 0.03 0.95 ± 0.09 9.43 ± 0.48
G2 3.70 ± 0.26 (7.1%) 4.04 ± 0.78 (19.3%) 11.19 ± 0.61 0.56 ± 0.02 0.29 ± 0.03 0.15 ± 0.03 0.57 ± 0.11 9.98 ± 0.73
G3 2.92 ± 0.26 (9.0%) DE 10.16 ± 0.69 0.60 ± 0.03 0.29 ± 0.02 0.11 ± 0.03 0.43 ± 0.09 9.46 ± 0.76
G4 3.31 ± 0.39 (11.7%) 2.95 ± 0.93 (31.6%) 10.54 ± 0.52 0.60 ± 0.03 0.28 ± 0.02 0.12 ± 0.04 0.42 ± 0.06 9.34 ± 0.40
G5 2.96 ± 0.20 (6.9%) 2.23 ± 0.54 (24.1%) 10.33 ± 0.41 0.65 ± 0.05 0.26 ± 0.01 0.09 ± 0.04 0.55 ± 0.11 9.79 ± 0.63
G6 3.22 ± 0.59 (18.2%) DNA 9.65 ± 0.76 0.54 ± 0.04 0.32 ± 0.02 0.15 ± 0.04 0.65 ± 0.07 9.80 ± 0.92
G7 3.44 ± 0.38 (11.1%) 2.83 ± 0.84 (29.7%) 11.28 ± 0.55 0.57 ± 0.05 0.23 ± 0.02 0.19 ± 0.06 0.47 ± 0.11 8.72 ± 0.88
G8 3.46 ± 0.41 (11.7%) 2.81 ± 0.43 (15.2%) 11.10 ± 0.49 0.57 ± 0.03 0.23 ± 0.05 0.21 ± 0.05 0.41 ± 0.09 8.40 ± 0.42
AUGE 3.32 ± 0.42 (12.7%) 3.22 ± 1.02 (31.7%) 10.78 ± 0.90 0.58 ± 0.05 0.27 ± 0.04 0.15 ± 0.05 0.56 ± 0.19 9.37 ± 0.84
P1 3.30 ± 0.37 (11.1%) 3.47 ± 0.33 (9.6%) 11.46 ± 0.78 0.60 ± 0.03 0.27 ± 0.04 0.13 ± 0.04 0.47 ± 0.07 8.78 ± 0.53
P2 3.18 ± 0.25 (7.8%) 3.16 ± 0.71 (22.4%) 11.55 ± 0.71 0.56 ± 0.03 0.29 ± 0.02 0.15 ± 0.04 0.43 ± 0.07 8.74 ± 0.40
P3 3.29 ± 0.26 (7.8%) 3.66 ± 0.88 (24.1%) 11.24 ± 0.94 0.58 ± 0.02 0.29 ± 0.03 0.13 ± 0.03 0.84 ± 0.11 9.02 ± 0.43
P4 3.48 ± 0.58 (16.5%) 2.05 ± 0.65 (31.7%) 11.86 ± 0.56 0.59 ± 0.02 0.26 ± 0.02 0.15 ± 0.03 0.32 ± 0.06 8.78 ± 0.38
P5 3.03 ± 0.25 (8.1%) 2.61 ± 0.32 (12.3%) 11.32 ± 0.75 0.63 ± 0.03 0.27 ± 0.02 0.11 ± 0.03 0.75 ± 0.08 9.06 ± 0.24
P6 3.56 ± 0.27 (7.7%) 4.07 ± 1.42 (34.9%) 13.19 ± 1.19 0.57 ± 0.02 0.25 ± 0.03 0.18 ± 0.05 0.67 ± 0.17 8.71 ± 0.53
P7 3.10 ± 0.22 (7.0%) 2.87 ± 0.55 (19.3%) 11.88 ± 0.47 0.63 ± 0.03 0.27 ± 0.03 0.10 ± 0.03 0.69 ± 0.11 10.21 ± 0.62
P8 3.59 ± 0.33 (9.1%) 5.70 ± 0.40 (7.1%) 13.84 ± 0.54 0.61 ± 0.04 0.28 ± 0.03 0.11 ± 0.04 0.40 ± 0.04 9.03 ± 0.29
P9 3.31 ± 0.22 (6.7%) 4.10 ± 0.40 (9.6%) 11.13 ± 0.93 0.59 ± 0.02 0.28 ± 0.04 0.12 ± 0.03 0.50 ± 0.06 8.77 ± 0.31
All Philips 3.32 ± 0.36 (10.8%) 3.52 ± 1.20 (34.0%) 11.95 ± 1.17 0.59 ± 0.04 0.27 ± 0.03 0.13 ± 0.04 0.56 ± 0.19 9.01 ± 0.62
S1 4.17 ± 0.23 (5.5%) 3.39 ± 0.56 (16.5%) 14.76 ± 0.84 0.57 ± 0.03 0.30 ± 0.03 0.12 ± 0.05 0.39 ± 0.08 9.40 ± 0.72
S2 4.74 ± 0.39 (8.1%) 3.76 ± 0.52 (13.7%) 17.24 ± 0.28 0.55 ± 0.02 0.33 ± 0.02 0.12 ± 0.03 0.38 ± 0.03 9.22 ± 0.36
S3 3.87 ± 0.41 (10.6%) 3.75 ± 0.76 (20.1%) 14.86 ± 0.98 0.56 ± 0.03 0.33 ± 0.04 0.11 ± 0.04 0.30 ± 0.06 8.63 ± 0.39
S4 4.28 ± 0.48 (11.1%) 3.22 ± 0.55 (17.1%) 14.05 ± 0.57 0.61 ± 0.03 0.29 ± 0.02 0.10 ± 0.04 0.33 ± 0.05 8.81± 0.31
S5 4.46 ± 0.72 (16.2%) 3.73 ± 0.63 (17.0%) 14.45 ± 1.60 0.59 ± 0.05 0.31± 0.04 0.10 ± 0.07 0.42 ± 0.11 9.45 ± 0.92
S6 4.08 ± 0.17 (4.2%) 3.86 ± 0.37 (9.5%) 14.57 ± 0.42 0.59 ± 0.04 0.30 ± 0.03 0.11± 0.03 0.44 ± 0.08 9.12 ± 0.28
S7 4.43 ± 0.34 (7.8%) 3.55 ± 0.52 (14.7%) 13.88 ± 0.96 0.58 ± 0.03 0.28 ± 0.03 0.14 ± 0.04 0.46 ± 0.08 8.98 ± 0.39
S8 4.50 ± 0.50 (11.0%) 3.46 ± 0.61 (17.6%) 15.52 ± 0.61 0.58 ± 0.03 0.29 ± 0.03 0.13 ± 0.02 0.33 ± 0.07 8.84 ± 0.36
All Siemens 4.29 ± 0.49 (11.3%) 3.60 ± 0.59 (16.4%) 14.73 ± 1.19 0.58 ± 0.04 0.30 ± 0.04 0.12 ± 0.04 0.38 ± 0.10 9.04 ± 0.57
Overall 3.61 ± 0.61 (16.9%) 3.46 ± 1.00 (28.8%) 12.42 ± 1.94 0.59 ± 0.04 0.28 ± 0.04 0.13 ± 0.05 0.51 ± 0.19 9.14 ± 0.70

CV, coefficient of variation; DE, data excluded; DNA, data not acquired; MM-s, MM-suppressed.