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Four-dimensional helical tomographic scanner

  • US 20040081270A1
  • Filed: 10/25/2002
  • Published: 04/29/2004
  • Est. Priority Date: 10/25/2002
  • Status: Active Grant
First Claim
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1. A helical cone beam computed tomography imaging method comprising:

  • acquiring helical cone beam computed tomography projection data for a volume of interest using a plurality of source trajectory helices;

    reconstructing the acquired helical cone beam computed tomography projection data for each helix to generate a corresponding time skewed volume image representation of the volume of interest;

    for each time skewed volume image representation, computing a voxel acquisition time for each voxel; and

    for each voxel, computing an interpolated voxel value based on values of the voxel in the plurality of image representations and corresponding voxel acquisition times.

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