Title: Cross-talk correction method and x-ray ct apparatus
Application Number: 200510054844 Application Date: 2005.03.15
Publication Number: 1669529 Publication Date: 2005.09.21
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: A61B6/03,G01T1/20
Applicant(s) Name: GE Med Sys Global Tech Co. LLC Address:
Inventor(s) Name: Nukui Masatake, Gohno Makoto
Attorney & Agent: yang kai chen jingjun
Abstract:
     A cross-talk correction method for easily removing leakage of fluorescent light occurring between scintillators adjacent in a slice direction, wherein first function fitting means in a channel direction and second function fitting means in a slice direction determine an ideal projection length In(Dn) , from slope phantom projection information, Equation (1) is then used to determine leakage coefficients epsilon and epsilon-, and subsequently, cross-talk removing means determines intensity information Dn from detected information Sn making up subject projection information on a subject using Equation (2) and the leakage coefficients epsilon and epsilon-; thus, the leakage component for scintillators adjacent in the slice direction contained in the subject projection information is removed by a simple method to eliminate artifacts due to leakage in the slice direction, hence improving image quality.
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