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

1 April 1979

journal article
Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Nuclear Science

Vol. 26 (2) , 2904-2909
https://doi.org/10.1109/tns.1979.4330557

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 |ω| - 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

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