CT image producing method and X-ray CT apparatus

Details CT image producing method and X-ray CT apparatus CT image producing method and X-ray CT apparatus

2007-08-21

2007-08-21

Thomas, Courtney (Department: 2882)

X-ray or gamma ray systems or devices

Specific application

Computerized tomography

C378S011000

Reexamination Certificate

active

11074228

ABSTRACT:
A method for producing a CT image by applying Z-filtering to axial scan data collected using a multi-row detector, wherein second axial scan data is collected at a second position Z2to which an X-ray tube and a multi-row detector are rectilinearly moved relative to a subject to be imaged from a first position Z1toward an end of the multi-row detector, projection data corresponding to a central portion a2of a reconstruction field P3near the end of the multi-row detector is extracted from the second axial scan data, and Z-filtering is applied based on the projection data of reconstruction fields P1, P2and P3to produce one CT image.

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