Computed tomography system with z-axis correction

Details Computed tomography system with z-axis correction Computed tomography system with z-axis correction

1993-02-01

1994-04-05

Envall, Jr., Roy N.

Boots, shoes, and leggings

36441314, 36441315, 36441316, 378 8, G06F 1500

Patent

active

053011082

ABSTRACT:
An x-ray CT scanner is operated in a calibration procedure to produce error signature vectors that indicate detector elements that have a non-uniform response along the z-axis and which may generate ring or band artifacts when certain anatomies are scanned. A correction process employs these error signatures during the scan to determine when correction is necessary and to make those corrections to the projection data as it is acquired.

REFERENCES:
patent: 5065436 (1991-11-01), Matsumura
patent: 5218533 (1993-06-01), Schanen
patent: 5222021 (1993-06-01), Feldman et al.
patent: 5249123 (1993-09-01), Hsieh

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