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System for assessing radiation treatment plan segmentations

  • US 8,081,813 B2
  • Filed: 05/29/2009
  • Issued: 12/20/2011
  • Est. Priority Date: 05/30/2008
  • Status: Active Grant
First Claim
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1. An apparatus for automatically assessing radiation therapy segmentations comprising an electronic computer executing a stored program to:

  • (a) receive a first and second electronic file each providing data points describing different three-dimensional surfaces circumscribing a structure in a human or animal patient intended for radiation therapy;

    (b) generate a first and second volume model defined by the different three-dimensional surfaces of the first and second electronic file respectively;

    (c) compare the first and second volume model to identify;

    (i) common volume elements in common to both of the first and second volume models;

    (ii) missing volume elements of the first volume model that are not in the second volume model; and

    (iii) extra volume elements of the second volume model that are not in the first volume model; and

    (d) output an indication of a conformance between the three-dimensional surfaces circumscribing the structure defined by the first and second electronic files based on a metric method of measuring volumes of the missing volume elements and extra volume elements;

    whereby segmentation represented by the second electronic file is evaluated.

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