X-ray or gamma ray systems or devices – Specific application – Computerized tomography
Patent
1996-08-01
1997-07-01
Porta, David P.
X-ray or gamma ray systems or devices
Specific application
Computerized tomography
378901, A61B 603
Patent
active
056446101
ABSTRACT:
The disclosed CT scanner includes a tomography system for generating data during a scan. The tomography system includes a detector characterized by at least one afterglow amplitude and at least one afterglow time constant, and a sampling device for generating a plurality of samples x.sub.i for all i from zero to MAX minus one of the detector output signal. The scanner also includes a set of N sub-processors for processing the samples x.sub.i, each of the sub-processors being represented by a unique integer q selected from zero to N minus one and receiving only the samples X.sub.iN+q. Each sub-processor includes a device for generating a compensated signal according to a function of at least a portion of the received samples and parameters representative of the afterglow amplitude and the afterglow time constant.
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Hsieh, J., Image Artifacts, Causes, And Correlation, Medical CT and Ultrasound: Current Technology and Applications, (Goldman et al. ed.) Advanced Medical Publishing (1995) pp. 488-518.
Bachilov Iouri
Crawford Carl R.
Deych Ruvin
Ruth Christopher C.
Analogic Corporation
Bruce David Vernon
Porta David P.
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