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Dynamic computed tomography imaging using positional state modeling

  • US 7,058,440 B2
  • Filed: 06/25/2002
  • Issued: 06/06/2006
  • Est. Priority Date: 06/28/2001
  • Status: Expired due to Fees
First Claim
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1. A method for acquiring diagnostic imaging data of a dynamically moving organ, the method comprising:

  • monitoring positional state of the organ motion as a function of time by measuring a physiological parameter and applying a positional state relationship that relates positional state to the measured physiological parameter;

    identifying at least two occurrences of a selected positional state within each cycle of motion of the dynamically moving organ based on the measured physiological parameter and the state relationship;

    selecting time windows arranged about identified occurrences of the selected positional state including at least said identified at least two occurrences;

    acquiring imaging data of the dynamically moving organ at least during the time windows;

    combining portions of the imaging data acquired during the time windows corresponding to the selected positional state to form an image data set; and

    reconstructing an image representation of the moving organ in the selected positional state from the image data set.

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