Computerized workflow method for stent planning and stenting procedure
First Claim
1. A method for computer-assisted stenting, including stent planning, comprising the steps of:
- acquiring image data from an internal region of a subject comprising a lumen afflicted with a lesion and reconstructing an at least 3D image of said region from said image data, said 3D image containing and representing characteristics of said lesion;
conducting a stenosis analysis of said lesion characteristics using said 3D image with at least a portion of said stenosis analysis being automatically electronically conducted by computerized analysis of said lesion characteristics, to obtain a stenosis analysis result;
based on said stenosis analysis result, selecting an actual stent to treat said lesion;
in a computer, generating a virtual simulated stent corresponding to said actual stent;
electronically overlaying said virtual stent on said 3D image and, in a computer, automatically electronically determining a best position of said virtual stent, relative to said lesion, for effectively treating said lesion as well as automatically electronically determining an angulation of a C-arm of an imaging system that will be used during a stenting procedure to implant said actual stent; and
conducting said stenting procedure to implant said actual stent, including generating a real time 2D image of said internal region using said imaging system with said C-arm thereof at said angulation, and including said virtual stent at said best position in said real time 2D image, and manually guiding said actual stent in said stenting procedure using said real time 2D image to bring said actual stent to an actual position in said internal region coinciding with said best position.
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Accused Products
Abstract
In a computerized workflow method for stent planning and conducting a stenting procedure, characteristics of a lesion to be stented are determined from a 3D planning image of the region and selection of an actual stent for stenting the lesion is made with computer-assisted analysis of the lesion based on the characteristics. A virtual stent is electronically generated based on the actual stent, and, using the virtual stent, a best position for the actual stent, for effectively stenting the lesion, is determined. A real time 2D image of the lesion-containing region is displayed during the stenting procedure, with the virtual stent included therein at the aforementioned best position. A physician manually guides the actual stent relative to the lesion during the stenting procedure until the position of the actual stent, as seen in the displayed real time 2D image, coincides with the virtual stent in that image.
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Citations
20 Claims
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1. A method for computer-assisted stenting, including stent planning, comprising the steps of:
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acquiring image data from an internal region of a subject comprising a lumen afflicted with a lesion and reconstructing an at least 3D image of said region from said image data, said 3D image containing and representing characteristics of said lesion;
conducting a stenosis analysis of said lesion characteristics using said 3D image with at least a portion of said stenosis analysis being automatically electronically conducted by computerized analysis of said lesion characteristics, to obtain a stenosis analysis result;
based on said stenosis analysis result, selecting an actual stent to treat said lesion;
in a computer, generating a virtual simulated stent corresponding to said actual stent;
electronically overlaying said virtual stent on said 3D image and, in a computer, automatically electronically determining a best position of said virtual stent, relative to said lesion, for effectively treating said lesion as well as automatically electronically determining an angulation of a C-arm of an imaging system that will be used during a stenting procedure to implant said actual stent; and
conducting said stenting procedure to implant said actual stent, including generating a real time 2D image of said internal region using said imaging system with said C-arm thereof at said angulation, and including said virtual stent at said best position in said real time 2D image, and manually guiding said actual stent in said stenting procedure using said real time 2D image to bring said actual stent to an actual position in said internal region coinciding with said best position. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A method for computer-assisted stenting and planning of said stenting, comprising the steps of:
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using an imaging modality in a planning step orientation, generating an at least 3D image data set of an internal region of a subject containing a lumen afflicted with a lesion, and an environment around said lesion, at which an actual stent is to be positioned and deployed in a subsequent stenting procedure;
using a computer supplied with said 3D image data set, analyzing said region and said environment in said 3D image data set and producing a lesion-characterizing data set representing anatomical and pathological characteristics of said lesion and said environment;
using said lesion-characterizing data set, selecting said actual stent for said stenting procedure, said actual stent having a marker detectable by a stenting procedure imaging modality;
in said computer, generating a virtual stent corresponding to the selected actual stent, including a virtual marker corresponding to said marker of said actual stent, and electronically overlaying said virtual stent in said 3D image data set at a virtual deployed position optimized to stent said lesion;
from said 3D image data set overlaid with said virtual stent, determining an imaging orientation of said stenting procedure imaging modality for conducting said stenting procedure;
conducting said stenting procedure, including orienting said stenting procedure imaging modality to the selected orientation and generating a real time 2D image of said region with said stenting procedure imaging modality; and
displaying said real time 2D image during said stenting procedure with said virtual stent included therein at said position optimized to stent said lesion, and manually guiding said actual stent relative to said lesion to cause a representation of said actual stent in said real time 2D image to coincide with said virtual stent.
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Specification