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Automatic delineation of heart borders and surfaces from images

  • US 20030038802A1
  • Filed: 08/23/2002
  • Published: 02/27/2003
  • Est. Priority Date: 08/23/2001
  • Status: Abandoned Application
First Claim
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1. A method for determining a surface of a patient'"'"'s organ from sparse data points derived from images along image planes through the patient'"'"'s organ, using a knowledge base of images and surfaces of other such organs, comprising the steps of:

  • (a) tracing the images of the patient'"'"'s organ to obtain the sparse data points;

    (b) deriving a candidate surface by fitting to the sparse data points, using surfaces from the knowledge base, said candidate surface corresponding to an anatomically feasible surface;

    (c) intersecting the candidate surface with the image planes corresponding to the images of the patient'"'"'s organ, yielding candidate borders for the patient'"'"'s organ, each candidate border being associated with a different one of the image planes;

    (d) determining if the candidate borders are consistent with the images of the patient'"'"'s organ, and if so, employing the candidate surface for the surface of the patient'"'"'s organ, but if not so, adding additional data points determined from the images of the patient'"'"'s organ to the sparse data points and repeating steps (b)-(d) using the sparse data points and additional data points successively added in step (d) until the surface of the patient'"'"'s organ is thus determined.

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