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. Author manuscript; available in PMC: 2016 Dec 1.
Published in final edited form as: Magn Reson Imaging. 2015 Aug 3;33(10):1191–1204. doi: 10.1016/j.mri.2015.07.008

Table 4.

Simulated results of magnetic moments of cylindrical objects and phase values inside objects, at different echo times.

Theory No high pass filter High pass filter



a TE ϕ90 ϕ0 ϕ90 ϕ0 ϕ90 ϕ0











pixel ms rad·pixel2 rad rad rad · pixel2 rad rad rad · pixel2 rad rad
1 10 1.61 0.54 −1.07 1.79 0.39 −0.58 1.89 0.35 −0.52
1 20 3.21 1.07 −2.14 3.55 0.55 −1.45 3.54 0.55 −1.41
1 30 4.82 1.61 −3.21 5.16 1.45 −4.53 5.11 1.55 −4.56
1 40 6.42 2.14 −4.28 6.66 1.96 −4.89 6.53 1.95 −5.00
1 50 8.02 2.68 −5.35 8.26 2.32 −5.62 7.99 2.50 −5.30
3 10 14.4 0.54 −1.07 14.9 0.53 −1.05 14.7 0.34 −0.71
3 20 28.9 1.07 −2.14 29.2 1.08 −2.11 27.0 0.59 −1.60
3 30 43.3 1.61 −3.21 43.8 1.59 −3.26 36.1 0.54 −3.27
3 40 57.8 2.14 −4.28 58.2 2.16 −4.32 41.8 0.34 −4.80
3 50 72.2 2.68 −5.35 72.8 2.72 −5.36 45.3 0.10 −5.65

The radii of these objects were 1 pixel and 3 pixels. The orientations of the objects were 90° and 0°. Theoretical values, results without using the high pass filter, and results using the high pass filter are listed. The first column lists the radius a of the object. The second column lists TE. The third, sixth, and ninth column show the magnetic moments ℘. The fourth, seventh, and tenth column list phase values inside objects perpendicular to the field. The fifth, eighth, and eleventh column list phase values inside objects parallel to the field. Uncertainties of these quantified results are not shown.