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. Author manuscript; available in PMC: 2014 Sep 1.
Published in final edited form as: Phys Med. 2013 Jan 21;29(5):500–512. doi: 10.1016/j.ejmp.2012.12.005

Figure 10.

Figure 10

120 kVp images of the 5.1 cm PMMA disk scanned in air reconstructed with (a) AMSc-ON and (b) the Philips axial pelvis protocol illustrate the presence of the peripheral roll-off error trend observed in the mean profiles of the smallest 5.1 cm diameter PMMA and Teflon cylinders. A narrow window of ± 2% around the centermost radial bin mean is used for each image to display the 1% roll-off trend. Utilizing the (c) Philips axial brain protocol reconstructs and image that does not exhibit the roll-off artifact. Note the AM image pixels (a) are 1.0 mm on a side, and the Philips pixels (b & c) are 0.488 mm on a side.