Patent Document ID: 20030068015
Application ID: 10164234
Patent Status: 0

Claim One:
1. A method for producing a computed tomography (CT) image comprising the steps of: (a) scanning a subject with a conical x-ray beam emanating from a focus and detecting said beam, after attenuation by said subject, with a matrix-like detector array while moving said focus along a spiral path around said subject relative to a system axis, said detector array generating output data dependent on radiation from said x-ray beam that is incident thereon; (b) dividing said output data, for a segment of said spiral path having a length adequate for reconstructing a CT image, into a plurality of datasets respectively for a plurality of sub-segments of said segment, each of said sub-segments having a length shorter than said length adequate for reconstructing a CT image; (c) for each of said sub-segments, reconstructing a plurality of segment images having a plane inclined relative to said system axis from the dataset for that sub-segment; (d) for each of said sub-segments, combining the plurality of segment images reconstructed from the dataset for that sub-segment to form a partial image with respect to a target image plane; and (e) combining the respective partial images for the respective sub-segments to form a resulting CT image with respect to said target plane.