149079.fig.007a
(a)
149079.fig.007b
(b)
149079.fig.007c
(c)
Figure 7: Shepp-Logan phantom reconstruction (middle slice): (a) is the true image, and (v) is the reconstruction by use of GPU-accelerated FDK program, (c) is a line profile along  pixel. The dotted line corresponds to GPU reconstructed image profile and the solid line corresponds to the true phantom profile. Little difference is shown in the line profiles.