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. Author manuscript; available in PMC: 2016 Nov 1.
Published in final edited form as: J Comput Assist Tomogr. 2015 Nov-Dec;39(6):907–913. doi: 10.1097/RCT.0000000000000295

Figure 2.

Figure 2

Detection of PDA. There is increased conspicuity of the PDA (arrow) with decreasing monochromatic energy levels (a=50keV, b=60keV, c=70keV, d=80keV and e=iodine MDI). The iodine material density image provides the best CNR.