Method and system for registering 3D models of anatomical regions with projection images of the same
First Claim
1. An imaging system for use in a medical intervention procedure, comprising:
- a first image acquisition system of a first modality employing a catheter at an anatomical region of a patient and configured to produce a first image of the anatomical region using fluoroscopy, the first image comprising a set of fluoroscopy projection images;
a second image acquisition system of a second different modality configured to generate a 3D model of the anatomical region;
an anatomical reference system common to both the first and second image acquisition systems; and
a processing circuit configured to process executable instructions for registering the 3D model with the fluoroscopy image in response to the common reference system and discernible parameters associated with the catheter in both the first and second image acquisition systems.
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Abstract
An imaging system for use in a medical intervention procedure is disclosed. A first image acquisition system of a first modality employing a catheter at an anatomical region of a patient is configured to produce a first image of the anatomical region using fluoroscopy, the first image comprising a set of fluoroscopy projection images. A second image acquisition system of a second different modality is configured to generate a 3D model of the anatomical region. An anatomical reference system is common to both the first and second image acquisition systems. A processing circuit is configured to process executable instructions for registering the 3D model with the fluoroscopy image in response to the common reference system and discernible parameters associated with the catheter in both the first and second image acquisition systems.
210 Citations
29 Claims
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1. An imaging system for use in a medical intervention procedure, comprising:
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a first image acquisition system of a first modality employing a catheter at an anatomical region of a patient and configured to produce a first image of the anatomical region using fluoroscopy, the first image comprising a set of fluoroscopy projection images; a second image acquisition system of a second different modality configured to generate a 3D model of the anatomical region; an anatomical reference system common to both the first and second image acquisition systems; and a processing circuit configured to process executable instructions for registering the 3D model with the fluoroscopy image in response to the common reference system and discernible parameters associated with the catheter in both the first and second image acquisition systems. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method of registering a 3D model of an anatomical region of a patient with projection images of the same from an interventional fluoroscopy system, the method comprising:
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generating a fluoroscopy image of the anatomical region from the fluoroscopy system, the anatomical region including a catheter; generating a 3D model of the anatomical region from a second image acquisition system of a different modality; analyzing the fluoroscopy image and the 3D model with respect to a common anatomical reference system; and registering the 3D model with the fluoroscopy image in response to the common reference system and discernible parameters associated with the catheter in both the fluoroscopy system and the second image acquisition system. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A computer program product for registering a 3D model of an anatomical region of a patient with projection images of the same from an interventional fluoroscopy system, the product comprising:
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a storage medium, readable by a processing circuit, storing instructions for execution by the processing circuit for; generating a fluoroscopy image of the anatomical region from the fluoroscopy system, the anatomical region including a catheter; generating a 3D model of the anatomical region from a second image acquisition system of a different modality; analyzing the fluoroscopy image and the 3D model with respect to a common anatomical reference system; registering the 3D model with the fluoroscopy image in response to the common reference system and discernible parameters associated with the catheter in both the fluoroscopy system and the second image acquisition system; and registering the 3D model with the fluoroscopy image in synchronization with cyclical movement of the anatomical region; wherein the registering comprises generating a translation factor for translating the 3D model with respect to the fluoroscopy image, generating a rotational factor, and generating a scaling factor for adjusting the scale of the 3D model with respect to the fluoroscopy image, the scaling factor being dependent on a discernable feature of the catheter.
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24. An imaging system for use in a medical intervention procedure, comprising
a first image acquisition system of a first modality employing a defibrillation and/or pacing lead at an anatomical region of a patient and configured to produce a first image of the anatomical region using fluoroscopy, the first image comprising a set of fluoroscopy projection images; -
a second image acquisition system of a second different modality configured to generate a 3D model of the anatomical region; an anatomical reference system common to both the first and second image acquisition systems; and a processing circuit configured to process executable instructions for registering the 3D model with the fluoroscopy image in response to the common reference system and discernible parameters associated with the defibrillation and/or pacing lead in both the first and second image acquisition systems. - View Dependent Claims (25, 26, 27, 28)
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29. A computer program product for registering a 3D model of an anatomical region of a patient with projection images of the same from an interventional fluoroscopy system, the product comprising:
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a storage medium, readable by a processing circuit, storing instructions for execution by the processing circuit for; generating a fluoroscopy image of the anatomical region from the fluoroscopy system, the anatomical region including a defibrillation and/or pacing lead; generating a 3D model of the anatomical region from a second image acquisition system of a different modality; analyzing the fluoroscopy image and the 3D model with respect to a common anatomical reference system; registering the 3D model with the fluoroscopy image in response to the common reference system and discernible parameters associated with the defibrillation and/or pacing lead in both the fluoroscopy system and the second image acquisition system; and registering the 3D model with the fluoroscopy image in synchronization with cyclical movement of the anatomical region; wherein the registering comprises generating a translation factor for translating the 3D model with respect to the fluoroscopy image, generating a rotational factor, and generating a scaling factor for adjusting the scale of the 3D model with respect to the fluoroscopy image, the scaling factor being dependent on a discernable feature of the defibrillation and/or pacing lead.
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Specification