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C-arm computerized tomography system

  • US 9,044,190 B2
  • Filed: 09/25/2007
  • Issued: 06/02/2015
  • Est. Priority Date: 09/25/2006
  • Status: Active Grant
First Claim
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1. A method of using a C-arm X-ray fluoroscopic two dimensional imaging system for generating a volumetric set of imaging data, comprising the steps of:

  • providing an X-ray fluoroscopic two dimensional imaging system having a source and a camera connected by a C-arm, said system imaging a region of interest of a subject disposed between said source and said camera;

    disposing a target having a series of X-ray opaque markers disposed in a three dimensional pattern, in a fixed position relative to the subject, and where at least part of the target will be imaged by said X-ray imaging system;

    manually applying a motion path to said C-arm;

    obtaining from said camera a sequence of video images of said region of interest of the subject while said C-arm performs said motion path;

    determining a pose of said C-arm relative to the subject for at least some of said sequence of video images by analyzing image patterns of said target;

    selecting a number of video images from said sequence of video images; and

    using said selected video images and their determined poses to reconstruct a three-dimensional volumetric set of imaging data of said region of interest of the subject.

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