Dynamically alterable three-dimensional graphical model of a body region
First Claim
1. A method of generating a three-dimensional graphical model of a region located within a living body, comprising the steps of:
- (a) generating a three-dimensional model of a region of interest;
(b) determining a three-dimensional location of a physical characteristic in a portion of the region of interest using at least one roving probe positioned within the living body;
(c) deforming the model to at least approximately incorporate the physical characteristic at the determined three-dimensional location of the physical characteristic;
(d) displaying the model on a graphical display; and
(e) repeating steps (b) through (d) multiple times for different roving probe locations to increase the conformity of the model to the region of interest.
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Abstract
The present invention is a system and method for graphically displaying a three-dimensional model of a region located within a living body. A three-dimensional model of a region of interest is displayed on a graphical display. The location in three-dimensional space of a physical characteristic (e.g. a structure, wall or space) in the region of interest is determined using at least one probe positioned within the living body. The graphical display of the model is deformed to approximately reflect the determined three-dimensional location of the physical characteristic. Preferably, the probe or probes are moved throughout the region of interest so as to gather multiple data points that can be used to increase the conformity between the graphical display and the actual region of interest within the patient.
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Citations
48 Claims
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1. A method of generating a three-dimensional graphical model of a region located within a living body, comprising the steps of:
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(a) generating a three-dimensional model of a region of interest;
(b) determining a three-dimensional location of a physical characteristic in a portion of the region of interest using at least one roving probe positioned within the living body;
(c) deforming the model to at least approximately incorporate the physical characteristic at the determined three-dimensional location of the physical characteristic;
(d) displaying the model on a graphical display; and
(e) repeating steps (b) through (d) multiple times for different roving probe locations to increase the conformity of the model to the region of interest. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method of generating a three-dimensional graphical model of an organ located within a living body, comprising the steps of
(a) generating a three-dimensional model of at least a portion of the organ; -
(b) determining a relative three-dimensional location of a known anatomical feature in the organ using a first probe positioned in the organ;
(c) deforming the model to approximately correlate a three-dimensional location of a corresponding anatomical feature on the model to the determined location of the known anatomical feature in the organ;
(d) graphically displaying the model;
(e) determining a relative three-dimensional location of an additional physical characteristic in the organ using at least one roving probe positioned in the organ; and
(f) further deforming the model to approximately incorporate the additional physical characteristic. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21)
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22. A method of generating a three-dimensional graphical model of a heart located within a living body, comprising the steps of:
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(a) generating a three-dimensional model of the heart;
(b) determining a relative three-dimensional location of a known anatomical feature in a portion of the heart using a reference catheter positioned in the heart;
(c) deforming the model to approximately correlate a three-dimensional location of an anatomical feature on the model to the determined location of the corresponding anatomical feature in the heart;
(d) positioning an additional roving probe in a chamber of the heart;
(e) determining relative three-dimensional location of a physical characteristic in the chamber using the additional roving probe;
(f) performing another transformation on the model to approximately incorporate at least a portion of the physical characteristic; and
(g) graphically displaying the model. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29)
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30. A system for generating a three-dimensional graphical model of a region located within a living body, comprising:
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a graphical display;
display software for generating a model of a region of interest and for displaying the model on the graphical display;
a roving probe positionable with a region in a living body corresponding to the region of interest;
a localization system for determining three-dimensional locations of at least a portion of the roving probe as the roving probe is moved within the living body, and for deriving three-dimensional locations of physical characteristics in portions of the region of interest from the determined three-dimensional locations of the roving probe; and
transformation software for deforming the model to at least approximately incorporate each physical characteristic at the determined three-dimensional location as each three-dimensional location of the roving probe is derived, wherein the conformity of the model to the region of interest within the living body is increased. - View Dependent Claims (31, 32, 33, 34, 35, 36)
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37. A system for generating a three-dimensional graphical model of an organ located within a living body, comprising:
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a graphical display;
display software for generating a model of an organ and for displaying the model on the graphical display;
a reference probe positionable within or in proximity to an anatomical feature of the organ;
an additional roving probe positionable within or in proximity to an additional physical characteristic of the organ;
a localization system for determining a three-dimensional location of at least a portion of the reference probe when the reference probe is positioned within or in proximity to the anatomical feature, for deriving a three-dimensional location of the anatomical feature in the organ from the determined three-dimensional location of the reference probe, for determining a three-dimensional location of at least a portion of the additional roving probe when the additional roving probe is positioned within or in proximity to the additional physical characteristic, and for deriving a three-dimensional location of the additional physical characteristic in the organ from the determined three-dimensional location of the additional roving probe; and
transformation software for deforming the model to at least approximately correlate the respective three-dimensional locations of the anatomical feature and additional physical characteristic on the model to the determined locations of the anatomical feature and additional physical characteristic in the organ. - View Dependent Claims (38, 39, 40, 41, 42, 43, 44, 45)
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46. A system for graphically displaying and dynamically correcting a model of an organ comprising:
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a processor for generating a model of an organ;
a display for displaying the generated model;
a roving catheter for placement into the body adjacent the organ; and
means associated with the catheter for generating data related to a position of the roving catheter and wherein said processor utilizes said position data to deform the displayed model of the organ as each roving catheter position is generated, wherein the conformity of the model to a corresponding actual region of interest within the living body is increased. - View Dependent Claims (47, 48)
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Specification