Normalization of tomographic image data

Details Normalization of tomographic image data Normalization of tomographic image data

1996-07-09

1997-10-21

Church, Craig E.

X-ray or gamma ray systems or devices

Specific application

Computerized tomography

378 4, G01N 2300

Patent

active

056804270

ABSTRACT:
A monitoring detector assembly is positioned outside the scanning plane of a CT scanner to insure detection of unattenuated X-rays from the X-ray source of the scanner. The monitoring detector assembly preferably provides a sequence of monitor detection measurements simultaneously with the sequential acquisition of the image data during each projection of the scan by a filtered CT scanner. The image data are normalized using the closest in time monitor detection measurement.

REFERENCES:
patent: 3778614 (1973-12-01), Hounsfield
patent: 4145610 (1979-03-01), Perilhou
patent: 4547893 (1985-10-01), Gordon
patent: 4769827 (1988-09-01), Uno et al.
patent: 4991189 (1991-02-01), Boomgaarden et al.
patent: 5228069 (1993-07-01), Arenson et al.

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