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. Author manuscript; available in PMC: 2015 Jan 17.
Published in final edited form as: Magn Reson Imaging. 2008 Feb 15;26(5):703–714. doi: 10.1016/j.mri.2007.11.001

Table 2.

Standard deviation of the error of raw MSV estimates for simulated EPI datasets A and B.

Correction cycle Standard deviation of error of median filtered MSV (mm and °)
Dataset A (motion applied: tx, ty, tz and θz)
Dataset B (motion applied: θx, θy, θz)
tx ty tz θ x θ y θ z tx ty tz θ x θ y θ z
Distorted 1.61 15.66 3.45 11.80 11.80 3.26 2.53 20.46 20.53 27.03 11.52 2.21
Cycle 0 (κ=0) 1.77 4.13 3.87 15.31 10.28 0.99 0.25 2.70 2.06 1.71 0.42 0.08
Cycle 1 (k=1) 0.22 2.37 0.24 6.75 1.94 3.10 0.13 0.17 0.10 0.09 0.12 0.03
Cycle 2 (k=2) 0.08 0.50 0.41 1.92 0.09 0.02 0.11 0.15 0.09 0.08 0.08 0.02
Cycle 3 (k=3) 0.34 0.50 0.69 1.47 0.40 0.15 0.11 0.15 0.10 0.09 0.08 0.02