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. 2018 Apr 6;45(5):1942–1956. doi: 10.1002/mp.12856

Figure 13.

Figure 13

Spatial resolution measurements for BOX, ATM, and AD images. One example of the boxcar filter is provided, while three operating points for each nonlinear filter are also shown as examples, corresponding to those indicated by the markers in Figs. 10 and 11. For both anterior and posterior ROIs, three figures are shown: (a, d) ROI with high contrast rod, (b, e) 2D MTF, and (c, f) 1D MTFs in the positive k x and positive k y directions. The radial averaged 1D MTF from the 1.9 mGy image without LSC is shown for reference. Values of MTF isotropy, ϵ MTF , for each case are also provided. [Color figure can be viewed at wileyonlinelibrary.com]