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. 2015 Feb 16;88(1048):20140667. doi: 10.1259/bjr.20140667

Figure 2.

Figure 2.

Comparison of the endoluminal (rendering threshold = −700 HU) and cross-sectional view (900/100 HU window) of a small pedunculated polyp (8 mm) in the ascending colon among filtered back projection (FBP), hybrid iterative reconstruction (HIR) and model-based iterative reconstruction (MBIR) shows that whilst HIR produces the best images if viewed in the endoluminal view, images reconstructed with MBIR have better quality in the cross-sectional view. The images were acquired with the following parameters: peak tube voltage, 120 kVp; time–current product, 8 mAs; collimation, 128 × 0.625 mm; rotation time, 0.5 s; pitch, 0.601; matrix size, 512 × 512 pixels; standard resolution; dose–length product (DLR), 26 mGy cm; estimated dose, 0.39 mSv; slice thickness, 1 mm; increment, 0.5 mm (50% overlap).