Computer aided treatment planning and visualization with image registration and fusion
First Claim
1. A computer based method of visualizing a region using multiple image data sets comprising:
- acquiring first volumetric image data of a region;
acquiring at least second volumetric image data of the region;
determining structural features of the region using the first volumetric image datadetermining at least one control point in the region using at least one structural feature in the first volumetric image data;
identifying the at least one control point in the region in the at least second image data of the region;
registering the first image data and the at least second image data using said at least one control point;
fusing the registered first image data and at least second image data into a common display data set; and
wherein the region includes a branched structure having a common section and at least two branches extending from the common section forming a bifurcation region and wherein a bifurcation point is determined as the center of an imaginary maximal diameter sphere which is fit within the bifurcation region.
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Abstract
A computer based system and method of visualizing a region using multiple image data sets is provided. The method includes acquiring first volumetric image data of a region and acquiring at least second volumetric image data of the region. The first image data is generally selected such that the structural features of the region are readily visualized. At least one control point is determined in the region using an identifiable structural characteristic discernable in the first volumetric image data. The at least one control point is also located in the at least second image data of the region such that the first image data and the at least second image data can be registered to one another using the at least one control point. Once the image data sets are registered, the registered first image data and at least second image data can be fused into a common display data set. The multiple image data sets have different and complimentary information to differentiate the structures and the functions in the region such that image segmentation algorithms and user interactive editing tools can be applied to obtain 3d spatial relations of the components in the region. Methods to correct spatial inhomogeneity in MR image data is also provided.
266 Citations
23 Claims
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1. A computer based method of visualizing a region using multiple image data sets comprising:
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acquiring first volumetric image data of a region; acquiring at least second volumetric image data of the region; determining structural features of the region using the first volumetric image data determining at least one control point in the region using at least one structural feature in the first volumetric image data; identifying the at least one control point in the region in the at least second image data of the region; registering the first image data and the at least second image data using said at least one control point; fusing the registered first image data and at least second image data into a common display data set; and wherein the region includes a branched structure having a common section and at least two branches extending from the common section forming a bifurcation region and wherein a bifurcation point is determined as the center of an imaginary maximal diameter sphere which is fit within the bifurcation region. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method of visualizing and analyzing a region of artery comprising:
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acquiring first volumetric image data of a region of artery using a first acquisition mode; acquiring at least second volumetric image data of the region of artery using a second acquisition mode, said second acquisition mode being different than the first acquisition mode; determining structural features of the artery using the first volumetric image data; determining a bifurcation point in the artery using the first volumetric image data, the bifurcation point being the center of an imaginary maximal diameter sphere inscribed within a bifurcation region of the artery; defining a coordinate system with the bifurcation point as the origin; identifying the bifurcation point in the artery in the at least second image data of the region and applying the defined coordinate system to the at least second volumetric image data; registering the first volumetric image data and the at least second volumetric image data using the bifurcation point and coordinate system; and fusing the registered first volumetric image data and at least volumetric second image data into a common display data set. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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Specification