Method and system for positioning a device in a tubular organ
First Claim
1. A method for positioning a device located inside a tubular organ, at a desired location inside the tubular organ, the method characterised by:
- (a) obtaining a three-dimensional reconstruction of the tubular organ;
(b) marking in the reconstruction the desired location at which the device is to be located;
(c) obtaining a two-dimensional X-ray image of the intravascular device from a known perspective; and
(d) using the three-dimensional reconstruction of the tubular organ in combination with the two-dimensional X-ray image of the device to position the device at said desired location inside the tubular organ.
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Accused Products
Abstract
A system and method for positioning a device at a desired location in a tubular organ such as an artery. A three-dimensional reconstruction of the organ is obtained, and the desired location is marked in the reconstruction. The device is inserted into the organ and an image is obtained of the device and organ. The reconstruction with the marked location is projected onto a plane from the perspective of the image and the projection and image are superimposed. If the device is not at the desired location, the device is repositioned in the organ and an additional image of the device is obtained. The reconstruction is then projected onto a plane from the perspective of the additional image and the additional image and the projection are superimposed. This process is repeated, as required, until the device is in the desired location.
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Citations
11 Claims
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1. A method for positioning a device located inside a tubular organ, at a desired location inside the tubular organ, the method characterised by:
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(a) obtaining a three-dimensional reconstruction of the tubular organ;
(b) marking in the reconstruction the desired location at which the device is to be located;
(c) obtaining a two-dimensional X-ray image of the intravascular device from a known perspective; and
(d) using the three-dimensional reconstruction of the tubular organ in combination with the two-dimensional X-ray image of the device to position the device at said desired location inside the tubular organ. - View Dependent Claims (2, 3, 4, 5)
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6. A system for positioning an intravascular device located inside a tubular organ at a desired location in the tubular organ, the system comprising:
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an X-ray imaging system (105) for imaging the intravascular device from a known perspective so as to produce a two-dimensional X-ray image of the intravascular device, a processor coupled to the X-ray imaging system and configured to project a three-dimensional reconstruction of the tubular organ on to a plane from said known perspective of the two-dimensional X-ray image of the intravascular device so as to form superimposition of either the three-dimensional reconstruction on to the two-dimensional X-ray image of the intravascular device or of the two-dimensional X-ray image of the intravascular device on to the three-dimensional reconstruction; and
a display displaying the superimposition. - View Dependent Claims (7, 8, 9, 10, 11)
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Specification