Methods and apparatus for CT calibration

Details Methods and apparatus for CT calibration Methods and apparatus for CT calibration

2005-12-22

2008-05-27

Ho, Allen C. (Department: 2882)

X-ray or gamma ray systems or devices

Specific application

Computerized tomography

C378S207000, C378S901000

Reexamination Certificate

active

07379527

ABSTRACT:
A method for normalizing a calibration of a computed tomographic (CT) imaging apparatus having a plurality of detector rows includes utilizing a prestored, predetermined inversion matrix and CT numbers obtained from images of a phantom to determine normalized calibration vectors for each row of a plurality of detector rows, and storing the determined normalized calibration vectors for each row of the plurality of detector rows in a memory for use in subsequent image reconstructions.

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