• DocumentCode
    845310
  • Title

    Dose Reduction in X-Ray Computed Tomography Using a Generalized Filter

  • Author

    Reed, I.S. ; Glenn, W.Y. ; Chang, C.M. ; Truong, T.K. ; Kwoh, Y.S.

  • Volume
    26
  • Issue
    2
  • fYear
    1979
  • fDate
    4/1/1979 12:00:00 AM
  • Firstpage
    2904
  • Lastpage
    2909
  • Abstract
    Previously with the use of computerized phantoms and simulation, it was conjectured that the x-ray dosage could be reduced by using the appropriate generalized |¿| - filter for x-ray reconstruction. In this paper, this conjecture has been confirmed by experiments that use data fromanEMI 5005 CT-scanner. Explicitly it is shown that the x-ray dosage can be lowered to 1/11 of the standard dosage while still maintaining a reconstruction accuracy which is acceptable for some applications.
  • Keywords
    Back; Computational modeling; Computed tomography; Convolution; Cutoff frequency; Filters; Hospitals; Imaging phantoms; Interpolation; X-ray imaging;
  • fLanguage
    English
  • Journal_Title
    Nuclear Science, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    0018-9499
  • Type

    jour

  • DOI
    10.1109/TNS.1979.4330557
  • Filename
    4330557