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Figure 6


FIGURE 6.  Cone beam effects in SSCT and MSCT. (A) In SSCT, divergent, cone-shaped x-ray beam irradiates different tissues—yielding different attenuation measurements—for parallel opposed rays, sometimes causing streaking for thicker slices. (B) Wider beams of MSCT accentuate cone beam shape and lead to rays that do not even lie within same plane. Cone beam reconstruction algorithms are generally required. opp. = opposite.





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