Attenuation Correction for Small Animal PET Images: A Comparison of Two Methods

<table>Profiles along the center of a rat-sized phantom uniformly filled with <svg height="15.8375" id="M65" style="vertical-align:-0.0pt" version="1.1" viewbox="0 0 21.1625 15.8375" width="21.1625" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
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</svg>-FDG. The plot shows three lines; thick line is the count profile of the uncorrected PET image, and the dotted and full lines, respectively, show the profiles of the PET images corrected with the SE-AC and CT-AC method. A significant increment of counts and shape recovery for both AC images is clearly seen.</table>

Computational and Mathematical Methods in Medicine

fig9

Figure 9

Figure 9: Attenuation Correction for Small Animal PET Images: A Comparison of Two Methods 