Endoscopic registration of vessel tree images
First Claim
1. An image registration system, comprising:
- an endoscope operable for generating an intra-operative endoscopic image of a vessel tree within an anatomical region; and
an endoscope controller structurally configured to image register the intra-operative endoscopic image of the vessel tree to a pre-operative three-dimensional image of the vessel tree responsive to a generation of the intra-operative endoscopic image of the vessel tree,wherein an image registration by the endoscope controller includes an image matching by the endoscope controller of a graphical representation of each furcation of the vessel tree within the intra-operative endoscopic image of the vessel tree to a graphical representation of each furcation of the vessel tree within the pre-operative three-dimensional image of the vessel tree;
wherein the image matching by the endoscope controller includes;
a generation by the endoscope controller of a main graph derived from a geometrical representation of the pre-operative three-dimensional image of the vessel tree, the main graph including a main set of connected nodes representative of each furcation of the vessel tree within the pre-operative three-dimensional image of the vessel tree;
a generation by the endoscope controller of a subgraph derived from a geometrical representation of the intra-operative endoscopic image of the vessel tree, the subgraph including a subset of the main set of connected nodes and being representative of each furcation of the vessel tree within the intra-operative endoscopic image of the vessel tree; and
a node matching by the endoscope controller of the subgraph to the main graph, wherein the endoscope controller is further structurally configured to update the image registration of the intra-operative endoscopic image of the vessel tree to the pre-operative three-dimensional image of the vessel tree responsive to any surgical alteration in a topology of the vessel tree;
wherein the main graph by the endoscope controller is modified to reflect a surgical alteration in the topology of the vessel tree; and
wherein the modifying of the arterial main graph by the endoscope controller includes at least one of (1) a connecting by the endoscope controller of an additional node to the main graph, the new node being representative of a surgical creation of an additional furcation of the vessel tree, and (2) a disconnecting by the endoscope controller of one of the nodes of the main graph, the disconnected node being representative of a surgical removal of one of the furcations of the vessel tree.
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Abstract
An image registration system employs an endoscope and an endoscope controller. In operation, the endoscope generates an intra-operative endoscopic image of a vessel tree (e.g., an arterial tree or a venous tree) within an anatomical region, and the endoscope controller image registers the intra-operative endoscopic image of the vessel tree to a pre-operative three-dimensional image of the vessel tree within the anatomical region. The image registration includes an image matching of a graphical representation of each furcation of the vessel tree within the intra-operative endoscopic image of the vessel tree to a graphical representation of each furcation of the vessel tree within the pre-operative three-dimensional image of the vessel tree.
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Citations
13 Claims
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1. An image registration system, comprising:
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an endoscope operable for generating an intra-operative endoscopic image of a vessel tree within an anatomical region; and an endoscope controller structurally configured to image register the intra-operative endoscopic image of the vessel tree to a pre-operative three-dimensional image of the vessel tree responsive to a generation of the intra-operative endoscopic image of the vessel tree, wherein an image registration by the endoscope controller includes an image matching by the endoscope controller of a graphical representation of each furcation of the vessel tree within the intra-operative endoscopic image of the vessel tree to a graphical representation of each furcation of the vessel tree within the pre-operative three-dimensional image of the vessel tree; wherein the image matching by the endoscope controller includes; a generation by the endoscope controller of a main graph derived from a geometrical representation of the pre-operative three-dimensional image of the vessel tree, the main graph including a main set of connected nodes representative of each furcation of the vessel tree within the pre-operative three-dimensional image of the vessel tree; a generation by the endoscope controller of a subgraph derived from a geometrical representation of the intra-operative endoscopic image of the vessel tree, the subgraph including a subset of the main set of connected nodes and being representative of each furcation of the vessel tree within the intra-operative endoscopic image of the vessel tree; and a node matching by the endoscope controller of the subgraph to the main graph, wherein the endoscope controller is further structurally configured to update the image registration of the intra-operative endoscopic image of the vessel tree to the pre-operative three-dimensional image of the vessel tree responsive to any surgical alteration in a topology of the vessel tree; wherein the main graph by the endoscope controller is modified to reflect a surgical alteration in the topology of the vessel tree; and wherein the modifying of the arterial main graph by the endoscope controller includes at least one of (1) a connecting by the endoscope controller of an additional node to the main graph, the new node being representative of a surgical creation of an additional furcation of the vessel tree, and (2) a disconnecting by the endoscope controller of one of the nodes of the main graph, the disconnected node being representative of a surgical removal of one of the furcations of the vessel tree. - View Dependent Claims (2)
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3. An image registration system, comprising:
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an endoscope operable for generating an intra-operative endoscopic image of an anatomical region including an arterial tree and a venous tree; and an endoscope controller structurally configured to image register the arterial tree within the intra-operative endoscopic image to a pre-operative three-dimensional image of the anatomical region responsive to a generation of the intra-operative endoscopic image of an anatomical region; wherein the image registration by the endoscope controller includes a venous image matching by the endoscope controller of a graphical representation of each furcation of the venous tree within the intra-operative endoscopic image of the anatomical region to a graphical representation of each furcation of the venous tree within the pre-operative three-dimensional image of the anatomical region; wherein the image registration by the endoscope controller includes an arterial image matching by the endoscope controller of a graphical representation of each furcation of the arterial tree within the intra-operative endoscopic image of the anatomical region to a graphical representation of each furcation of the arterial tree within the pre-operative three-dimensional image of the anatomical region; wherein the venous image matching by the endoscope controller includes; a generation by the endoscope controller of a venous main graph derived from a geometrical representation of the pre-operative three-dimensional image of the anatomical region, the venous main graph including a main set of venous nodes representative of each furcation of the venous tree within the pre-operative three-dimensional image of the anatomical region; a generation by the endoscope controller of a venous subgraph derived from a geometrical representation of the intra-operative endoscopic image of the anatomical region, the venous subgraph including a subset of the main set of venous nodes and being representative of each furcation of the venous tree within the intra-operative endoscopic image of the anatomical region; wherein the arterial image matching by the endoscope controller includes; a generation by the endoscope controller of an arterial main graph derived from a geometrical representation of the pre-operative three-dimensional image of the anatomical region, the arterial main graph including a main set of arterial nodes representative of each furcation of the arterial tree within the pre-operative three-dimensional image of the anatomical region, and a generation by the endoscope controller of an arterial subgraph derived from a geometrical representation of the intra-operative endoscopic image of the anatomical region, the arterial subgraph including a subset of the main set of arterial nodes and being representative of each furcation of the arterial tree within the intra-operative endoscopic image of the anatomical region; wherein the endoscope controller is further structurally configured to update the image registration of the intra-operative endoscopic image of the vessel tree to the pre-operative three-dimensional image of the vessel tree responsive to any surgical alteration in a topology of the vessel tree, wherein the arterial main graph is modified by the endoscope controller to reflect a surgical alteration in the topology of the vessel tree; and wherein the modifying of the arterial main graph by the endoscope controller includes a connecting by the endoscope controller of an additional node to the main graph, the new node being representative of a surgical creation of an additional furcation of the vessel tree. - View Dependent Claims (4, 5, 6, 7, 8)
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9. An image registration system, comprising:
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an endoscope operable for generating an intra-operative endoscopic image of an anatomical region including an arterial tree and a venous tree; and an endoscope controller structurally configured to image register the arterial tree within the intra-operative endoscopic image to a pre-operative three-dimensional image of the anatomical region responsive to a generation of the intra-operative endoscopic image of an anatomical region, wherein the image registration by the endoscope controller includes a venous image matching by the endoscope controller of a graphical representation of each furcation of the venous tree within the intra-operative endoscopic image of the anatomical region to a graphical representation of each furcation of the venous tree within the pre-operative three-dimensional image of the anatomical region; wherein the image registration by the endoscope controller includes an arterial image matching by the endoscope controller of a graphical representation of each furcation of the arterial tree within the intra-operative endoscopic image of the anatomical region to a graphical representation of each furcation of the arterial tree within the pre-operative three-dimensional image of the anatomical region, wherein the venous image matching by the endoscope controller includes; a generation by the endoscope controller of a venous main graph derived from a geometrical representation of the pre-operative three-dimensional image of the anatomical region, the venous main graph including a main set of venous nodes representative of each furcation of the venous tree within the pre-operative three-dimensional image of the anatomical region, and a generation by the endoscope controller of a venous subgraph derived from a geometrical representation of the intra-operative endoscopic image of the anatomical region, the venous subgraph including a subset of the main set of venous nodes and being representative of each furcation of the venous tree within the intra-operative endoscopic image of the anatomical region; wherein the arterial image matching by the endoscope controller includes; a generation by the endoscope controller of an arterial main graph derived from a geometrical representation of the pre-operative three-dimensional image of the anatomical region, the arterial main graph including a main set of arterial nodes representative of each furcation of the arterial tree within the pre-operative three-dimensional image of the anatomical region, and a generation by the endoscope controller of an arterial subgraph derived from a geometrical representation of the intra-operative endoscopic image of the anatomical region, the arterial subgraph including a subset of the main set of arterial nodes and being representative of each furcation of the arterial tree within the intra-operative endoscopic image of the anatomical region; wherein the endoscope controller is further structurally configured to update the image registration of the intra-operative endoscopic image of the vessel tree to the pre-operative three-dimensional image of the vessel tree responsive to any surgical alteration in a topology of the vessel tree; wherein the arterial main graph is modified by the endoscope controller to reflect a surgical alteration in the topology of the vessel tree; and wherein the modifying of the arterial main graph by the endoscope controller includes a disconnecting by the endoscope controller of one of the nodes of the main graph, the disconnected node being representative of a surgical removal of one of the furcations of the vessel tree.
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10. An image registration method, comprising:
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generating a pre-operative three-dimensional image of a vessel tree within an anatomical region; generating an intra-operative endoscopic image of the vessel tree within the anatomical region; and an endoscope controller image registering the intra-operative endoscopic image of the vessel tree to the pre-operative three-dimensional image of the vessel tree, wherein the image registration by the endoscope controller includes an image matching by the endoscope controller of a graphical representation of each furcation of the vessel tree within the intra-operative endoscopic image of the vessel tree to a graphical representation of each furcation of the vessel tree within the pre-operative three-dimensional image of the vessel tree, the endoscope controller updating the image registration of the intra-operative endoscopic image of the vessel tree to the pre-operative three-dimensional image of the vessel tree responsive to a surgical alteration the vessel tree; wherein a main graph is modified by the endoscope controller to reflect a change in the topology of the vessel tree; wherein the modifying of the arterial main graph by the endoscope controller includes (1) a connecting by the endoscope controller of an additional node to the main graph, the new node being representative of a surgical creation of an additional furcation of the vessel tree or (2) a disconnecting by the endoscope controller of one of the nodes of the main graph, the disconnected node being representative of a surgical removal of one of the furcations of the vessel tree. - View Dependent Claims (11, 12, 13)
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Specification