Location and display of occluded portions of vessels on 3-D angiographic images
First Claim
1. A method of finding the location of an occluded portion of a blood vessel relative to a three-dimensional angiographic image of a subject'"'"'s vasculature, the method comprising:
- deriving, from three dimensional image data associated with an angiographic image, a series of two dimensional images in planes substantially transverse to the direction of an occluded portion of a blood vessel that is displayed in the angiographic image;
identifying, via a user-input device, a location within the occluded portion of the blood vessel on each of the series of displayed two dimensional images derived from the three dimensional image data; and
determining, from the locations identified on each of the two dimensional images, a construction of the occluded portions of the blood vessel, and displaying the construction on the three-dimensional angiographic image to indicate the location of the occluded portions.
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Accused Products
Abstract
A method of finding the location of an occluded portion of a blood vessel relative to a three-dimensional angiographic image of a subject'"'"'s vasculature includes identifying the location of the occluded portion of the blood vessel on each of a series of displayed two dimensional images derived from the three dimensional image data in planes substantially transverse to direction of the occluded portion of the vessel. The identified locations in the occluded portion of the vessel can then be used to determine the path of the occluded portion of the vessel.
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Citations
25 Claims
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1. A method of finding the location of an occluded portion of a blood vessel relative to a three-dimensional angiographic image of a subject'"'"'s vasculature, the method comprising:
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deriving, from three dimensional image data associated with an angiographic image, a series of two dimensional images in planes substantially transverse to the direction of an occluded portion of a blood vessel that is displayed in the angiographic image; identifying, via a user-input device, a location within the occluded portion of the blood vessel on each of the series of displayed two dimensional images derived from the three dimensional image data; and determining, from the locations identified on each of the two dimensional images, a construction of the occluded portions of the blood vessel, and displaying the construction on the three-dimensional angiographic image to indicate the location of the occluded portions. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method of locating an occluded portion of a blood vessel relative to a three-dimensional angiographic image of a subject'"'"'s vasculature, the method comprising:
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successively displaying two dimensional images, derived from the three dimensional image data, of a plane substantially transverse to the expected local direction of the vessel that includes the occluded portion of the vessel; identifying, via a user-input device, a location within the occluded portion of the vessel on each of the displayed two dimensional images; and displaying a construction determined from the locations identified on each of the two dimensional images on the three-dimensional image to indicate the location of the occluded portions. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. A method of locating an occluded portion of a blood vessel in a three-dimensional angiographic image of a subject'"'"'s vasculature, the method comprising:
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predicting the path of the occluded portion of the blood vessel; displaying a plurality of two dimensional images, derived from the three dimensional image data, of a plane substantially transverse to the predicted path of the occluded portion of the vessel, where the displayed two dimensional images include the occluded portion of the vessel; identifying, via a user-input device, a location within the occluded portion of the vessel on each of the displayed two dimensional image; and displaying a construction determined from the locations identified on each of the two dimensional images on the three-dimensional image to indicate the location of the occluded portions. - View Dependent Claims (23)
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24. A method of identifying a navigation path through an occluded portion of a blood vessel that is difficult to see on a three-dimensional angiographic image, the method comprising:
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identifying, via a user-input device, a location within the occluded portion of the blood vessel on each of a series of displayed two dimensional images, derived from the three dimensional image data, in planes substantially transverse to the direction of the occluded portion of the blood vessel; and determining the navigation path through the occluded portion of the blood vessel by connecting the identified locations. - View Dependent Claims (25)
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Specification