METHOD AND A SYSTEM FOR ASSESSING THE RELATIVE POSE OF AN IMPLANT AND A BONE OF A CREATURE
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Abstract
A method and a system assess a relative pose of an implant and a bone of a patient. The method includes: acquiring multiple medical X-ray images of the bone with the implant preliminarily mounted to the bone; providing a database of virtual 3D implant models and selecting the implant used; fitting the virtual implant to the medical X-ray image; selecting a bone model; and fitting the chosen bone model to the medical X-ray image. The system and method now allow directly in the operation room to assess the relative pose of the implant and the bone/bone fragments by a comparison of the medical image and the respective virtual image both having the same orientation in view. The resulting image is an image of the matching virtual 2D image of the implant used and the real medical image taken from the C-arm X-ray device.
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Citations
32 Claims
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1-16. -16. (canceled)
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17. A method for assessing a relative pose of an implant and a bone of a patient, which comprises the steps of:
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a) acquiring at least one medical X-ray image of the bone with the implant preliminarily mounted to the bone; b) providing a database of virtual 3D implant models and selecting the implant for use; c) fitting a virtual implant to the medical X-ray image; d) selecting a bone model; and e) fitting the bone model chosen to the medical X-ray image. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24)
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25. A system for assessing a relative pose of an implant and a bone of a patient, the system comprising:
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a medical imaging device for acquiring at least one medical X-ray image of the bone with the implant preliminarily mounted to the bone; a database containing virtual 3D implant models and means for selecting the implant in use; a calculation device for fitting the virtual implant to the medical X-ray image; means for selecting a bone model; and said calculation device enabled to fit the bone model chosen to the medical X-ray image. - View Dependent Claims (26, 27, 28, 29, 30, 31, 32)
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Specification