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. 2015 Jan 16;88(1046):20140683. doi: 10.1259/bjr.20140683

Table 2.

Average values ± standard deviation of the quantitative and qualitative evaluation

Evaluated scenario Ratings motion-corrected images Relative reductions in metric Ratings perfusion maps R² values maximum-slope Residuals maximum-slope (HU) R² values Patlak Residuals Patlak
Commercial rigid 2.7 ± 1.0 0.6% ± 63.5% 2.4 ± 1.0 0.03 ± 0.13 526 ± 214 0.31 ± 0.14 1.33 ± 0.76
Commercial non-rigid 3.1 ± 0.9 29.2% ± 30.8% 2.8 ± 0.9 0.11 ± 0.07 350 ± 108 0.35 ± 0.16 0.95 ± 0.49
Deformable 3.3 ± 0.8 48.5% ± 23.4% 3.1 ± 0.9 0.18 ± 0.07 291 ± 71 0.41 ± 0.17 0.83 ± 0.47
Deformable dual-energy-blended 3.3 ± 0.8 45.6% ± 24.1% 3.0 ± 0.9 0.19 ± 0.06 290 ± 73 0.40 ± 0.19 0.84 ± 0.47
Deformable virtual non-contrast 2.9 ± 1.0 22.8% ± 27.4% 2.6 ± 0.9 0.12 ± 0.06 419 ± 103 0.33 ± 0.15 1.13 ± 0.49
Control 2.7 ± 1.1 0% ± 0% 2.5 ± 0.9 0.07 ± 0.06 509 ± 179 0.31 ± 0.15 1.32 ± 0.69