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© RSNA, 2008







Effects of Spatial Resolution and Tube Current on Computer-aided Detection of Polyps on CT Colonographic Images: Phantom Study


Supplemental Figures

Figure E1a
a.
Figure E1b
b.
Figure E1. (a, b) Polyps were detected with CAD at all tube current settings from 10 to 160 mAs: (a) 9-mm flat polyp (arrows), (b) 8-mm polyp (solid arrows) with long peduncle (open arrows). Note the gross specimens of the polyps (arrowheads) in the colonic phantoms (lower right in a and b).
 
Figure E2a
a.
Figure E2b
b.
Figure E2. (a) A 15-mm flat polyp and (b) a 3-mm sessile polyp (arrows) were detected with CAD only at the lowest tube current setting of 10 mAs. Note the gross specimens of the polyps (arrowheads) in the colonic phantoms (lower right in a and b).




This Article
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