X-ray CT image production method and X-ray CT system

X-ray or gamma ray systems or devices – Computer tomography program or processor

Reexamination Certificate

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C378S004000

Reexamination Certificate

active

10979616

ABSTRACT:
A method to reconstruct an image by utilizing a plurality of projection data items acquired with X-rays that pass through the same pixel location in the same scan field while being transmitted along different paths with a scanner gantry set at the same view angle or an opposite view angle. A helical scan is performed in order to acquire projection data. Two or more projection data items acquired with X-rays that pass through a pixel location Q in the scan field while being transmitted along different paths with the scanner gantry set at the same view angle are synthesized in order to produce reconstruction projection data. A CT image is reconstructed based on the reconstruction projection data.

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