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Concurrent reconstruction using multiple bed frames or continuous bed motion

  • US 7,750,304 B2
  • Filed: 12/05/2005
  • Issued: 07/06/2010
  • Est. Priority Date: 12/15/2004
  • Status: Active Grant
First Claim
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1. An imaging system comprising:

  • a data memory into which an acquired sinogram of projection data of an entire object is loaded; and

    an object reconstruction processor which reconstructs a volumetric image representation of the entire object in successive volumetric image portions, which reconstruction processor is programmed to;

    extract sinogram subsets each corresponding to a prespecified axial length from the data memory one at a time, the prespecified axial lengths partially overlapping,sequentially reconstruct sinogram subsets into the successive volume image portions with an iterative reconstruction algorithm using a trailing portion of a preceding image portion as an initial estimate for a leading edge portion of a currently reconstructed image portion of the image and reconstructs the trailing edge portion of the currently reconstructed image portion to be used as an initial estimate for a leading edge portion of a next subsequent image portion.

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