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Quantitative assessment of image quality using niobium filtration for cephalometric radiography
M Wakoh1, A G Farman, K Nishikawa
1Division of Radiology and Imaging Sciences, School of Dentistry, University of Louisville, Kentucky.
Abstract:
The effect of added niobium filtration on image quality in cephalometric radiography was quantitatively evaluated using the Modulation Transfer Function (MTF). A conventional full-wave cephalometric X-ray generator (Quint Sectograph) and a constant potential, high frequency X-ray generator (Orthophos CD) were compared with respect to the effects on the MTF of the added filtration. There was a slight reduction in image quality with both machines when adding niobium filtration.
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