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. 2016 Dec;2(4):411–420. doi: 10.18383/j.tom.2016.00229

Table 3.

Average eSNR Values in the Diffusion Phantom

Vial No. 1.5 T
 3.0 T
eSNRtDWI b900 eSNRdDWI b900 eSNRtDWI b2000 eSNRdDWI b2000 eSNRtDWI b900 eSNRdDWI b900 eSNRtDWI b2000 eSNRdDWI b2000
1 55.9 ± 2.5 46.6 ± 0.9 31.7 ± 5.8 30.0 ± 1.7 49.9 ± 10.8 45.4 ± 9.8 43.3 ± 9.7 35.7 ± 6.3
2 32.9 ± 6.7 22.7 ± 1.4 24.2 ± 4.6 19.6 ± 2.1 28.3 ± 0.8 30.0 ± 7.3 27.1 ± 0.8 35.3 ± 7.3
3 23.7 ± 2.2 21.7 ± 0.6 20.3 ± 4.4 19.0 ± 1.2 23.3 ± 8.2 21.4 ± 8.5 18.9 ± 10.2 20.1 ± 8.4
4 47.4 ± 1.1 40.0 ± 8.9 37.0 ± 2.7 38.7 ± 7.3 64.8 ± 6.3 57.0 ± 5.3 68.4 ± 10.3 61.5 ± 12.5
5 48.5 ± 6.4 41.3 ± 4.8 45.1 ± 1.6 38.6 ± 5.3 20.0 ± 0.8 20.6 ± 3.5 20.6 ± 1.2 23.0 ± 6.4
6 67.2 ± 8.6 76.6 ± 22.2 58.4 ± 8.9 54.1 ± 14.8 82.5 ± 21.3 81.4 ± 9.0 98.6 ± 10.7 91.9 ± 16.5
7 18.1 ± 0.3 18.6 ± 0.7 18.6 ± 0.1 19.1 ± 1.4 18.5 ± 1.8 17.7 ± 1.1 18.3 ± 1.8 17.1 ± 0.2
8 41.0 ± 4.1 42.0 ± 1.6 30.2 ± 2.8 42.2 ± 2.8 40.5 ± 4.1 40.0 ± 4.9 41.2 ± 2.8 41.5 ± 3.3
9 27.3 ± 3.0 28.3 ± 4.2 29.8 ± 1.3 29.1 ± 2.8 35.9 ± 3.0 30.0 ± 2.7 38.4 ± 6.1 32.7 ± 3.3
10 30.2 ± 2.1 32.7 ± 3.0 30.5 ± 3.4 32.7 ± 0.4 40.5 ± 7.1 32.3 ± 0.3 38.0 ± 2.6 31.0 ± 0.7
11 28.9 ± 1.1 32.7 ± 4.0 30.9 ± 1.6 34.4 ± 0.8 48.0 ± 0.1 42.8 ± 6.4 51.4 ± 0.8 44.5 ± 8.8
12 46.5 ± 0.8 37.1 ± 6.2 48.2 ± 7.4 40.5 ± 2.6 40.2 ± 1.9 39.6 ± 3.3 69.3 ± 2.7 49.2 ± 4.6
13 42.5 ± 2.3 40.9 ± 4.9 48.0 ± 1.5 46.5 ± 3.1 65.7 ± 3.6 60.5 ± 1.5 54.0 ± 4.1 64.9 ± 21.4
Mean 39.2 ± 13.9 37.0 ± 14.8 35.6 ± 11.9 34.2 ± 10.8 42.7 ± 19.2 39.9 ± 18.1 45.2 ± 23.4 42.2 ± 20.8

Average SNR values are listed for tDWI and dDWI for the b900 and b2000 images in vitro at 1.5 T and 3.0 T. Wilcoxon signed rank P values between eSNR of tDWI and dDWI are 0.273, 0.340, 0.006, and 0.080 for b900 at 1.5 T, b2000 at 1.5 T, b900 at 3.0 T, and b2000 at 3.0 T, respectively.