Skip to main content
. 2014 Oct 27;41(11):111912. doi: 10.1118/1.4898324

FIG. 8.

FIG. 8.

Reconstructed images of CatPhan 600 phantom (full-fan mode). Top row: contrast slice shown with window (−300, 350) HU. A zoomed-in ROI within the box is shown in the upper-left corner. Below shows the CNR value, where the contents inside the circle and the box are regarded as foreground and background, respectively. Bottom row: resolution slice shown with window (−445, 1775) HU. A zoomed-in ROI within the box is shown in the upper-left corner. Below shows the profiles crossing the two groups of line pairs. From left to right: FDK reconstruction with 364 projections, FDK reconstruction with 91 projections, and TF with 91 projections.