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Automatic tracking of a tool upon a vascular roadmap

  • US 10,307,061 B2
  • Filed: 12/30/2009
  • Issued: 06/04/2019
  • Est. Priority Date: 03/08/2007
  • Status: Active Grant
First Claim
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1. A method for use with an endoluminal tool that is inserted into a blood vessel in a portion of a subject'"'"'s vasculature, and with an extraluminal image-acquisition device that acquires images of the endoluminal tool and the portion of the subject'"'"'s vasculature, the method comprising:

  • using a first image acquired by the image-acquisition device when there was contrast agent within the portion of the subject'"'"'s vasculature, generating a road map of the blood vessel, and identifying in the first image a feature that is within the portion of the subject'"'"'s vasculature;

    determining, by a processor, a distance between a portion of the endoluminal tool and the feature within a second image that shows the endoluminal tool and the feature, the second image having been acquired by the extraluminal image-acquisition device in an absence of contrast agent within the portion of the subject'"'"'s vasculature, wherein the feature is visible and in the same position with respect to the portion of the subject'"'"'s vasculature in both the first image and the second image;

    based on the determined distance between the portion of the endoluminal tool and the feature in the second image, determining, by the processor, a position of the endoluminal tool within the road map; and

    in response, driving, by the processor, a display to display an output representative of the determined position of the endoluminal tool within the road map.

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