Table 4 Coefficient of variation and fraction of voxels within a 10% (p10), 25% (p25), and 50% (p50) limit above or below mean signal intensity within the phantom at 0.55 T, 1.5 T, and 3 T. No statistically significant differences exist

0.55 T

Titanium

0.31 ± 0.06

0.41 ± 0.11

0.74 ± 0.10

0.90 ± 0.04

Cobalt-chromium

0.35 ± 0.09

0.37 ± 0.15

0.69 ± 0.14

0.86 ± 0.06

Stainless steel

0.37 ± 0.12

0.38 ± 0.10

0.69 ± 0.11

0.85 ± 0.09

1.5 T

Titanium

0.28 ± 0.08

0.55 ± 0.07

0.82 ± 0.05

0.91 ± 0.04

Cobalt-chromium

0.35 ± 0.10

0.46 ± 0.16

0.73 ± 0.14

0.85 ± 0.09

Stainless steel

0.36 ± 0.16

0.44 ± 0.16

0.70 ± 0.19

0.83 ± 0.14

3 T

Titanium

0.34 ± 0.13

0.30 ± 0.13

0.66 ± 0.18

0.86 ± 0.12

Cobalt-chromium

0.43 ± 0.19

0.31 ± 0.16

0.59 ± 0.24

0.75 ± 0.21

Stainless steel

0.62 ± 0.19

0.25 ± 0.15

0.47 ± 0.24

0.64 ± 0.20