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Computed tomography scanning target detection using non-parallel slices

  • US 5,909,477 A
  • Filed: 10/10/1997
  • Issued: 06/01/1999
  • Est. Priority Date: 04/09/1997
  • Status: Expired due to Term
First Claim
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1. A method of processing computed tomography scan data for a region having a longitudinal axis, said method comprising:

  • scanning the region with a radiation source and an array of detectors to generate the scan data for the region;

    defining a plurality of image data slices corresponding to a plurality of positions along the longitudinal axis of the region, successive image data slices being non-parallel with each other and each image data slice defining a plurality of image volume elements tilted with respect to the longitudinal axis, each image volume element being associated with an image density value; and

    applying a correction factor to the image density values of the tilted volume elements to compensate for the tilt of the image volume elements.

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