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

Details X-ray CT image reconstruction method and X-ray CT system X-ray CT image reconstruction method and X-ray CT system

2006-05-18

2009-11-24

Glick, Edward J (Department: 2882)

X-ray or gamma ray systems or devices

Specific application

Computerized tomography

C378S015000

Reexamination Certificate

active

07623615

ABSTRACT:
An X-ray CT image reconstruction method includes turning a fan-shaped X-ray beam, which is thick and irradiated to a subject, about the subject, detecting projection data items concerning an X-ray beam, which is transmitted by the subject, with the X-ray beam turned by a plurality of successive angles of rotation, enhancing fan-beam data, which includes projection data items detected with the X-ray beam turned by the angles of rotation, so as to sharpen projection data contained in the fan-beam data and acquired along each projection line, producing parallel-beam data, which has values thereof defined along parallel projection lines, in relation to each angle of projection using the enhanced fan-beam data, and reconstructing an image using the parallel-beam data.

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