Method of and system for extracting 3D bag images from continuously reconstructed 2D image slices in computed tomography

  • US 7,327,853 B2
  • Filed: 06/09/2004
  • Issued: 02/05/2008
  • Est. Priority Date: 06/09/2004
  • Status: Active Grant
First Claim
Patent Images

1. A method of extracting 3D bag images from continuously reconstructed 2D CT image slices comprising:

  • A. Detecting a starting slice from a series of Ns1+Ns2 slices, further comprising;

    A1. Computing slice energy for each 2D CT image slice;

    A2. Thresholding slices into high energy slices and low energy slices;

    A3. Counting the number of high energy slices until a predetermined number of high energy slices are achieved within an Ns1 number of slices;

    A4. Counting the number of high energy slices in the last Ns2 slices; and

    A5. Using and checking a starting slice criterion to determine whether a starting slice has been detected;

    B. Counting bag slices;

    C. Splitting 3D bag images, if necessary; and

    D. Detecting an ending slice.

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