Identifying individual sub-regions of the cardiovascular system for calcium scoring
First Claim
1. A method, comprising:
- identifying a plurality of different anatomical sub-regions of a cardiovascular system of a subject in image data of the subject based on a subject specific cardiovascular anatomical model, wherein the plurality of different anatomical sub-regions corresponds to regions where calcifications occur;
searching for calcifications in the sub-regions based on voxel grey value intensity values of the image data,identifying calcifications in a sub-region using a pre-determined threshold, wherein a first threshold is used for a first sub-region of the plurality of different anatomical sub-regions, a second threshold is used for a second sub-region of the plurality of different anatomical sub-regions, and the first and second thresholds are different;
generating a signal indicative of one or more regions of voxels of the image data respectively corresponding to sub-regions including identified calcifications;
determining calcium scores for at least one of the sub-regionsdetermining relative severities for the calcium scores;
assigning a different color to the different severities;
generating a mapping between the relative severities and a surface of the subject specific cardiovascular anatomical model; and
visually presenting the subject specific cardiovascular anatomical model, using the different colors assigned to the severities to identify the relative severities in corresponding sub-regions.
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Abstract
A method includes identifying a plurality of different anatomical sub-regions of the cardiovascular system of a subject in image data of the subject based on a subject specific cardiovascular anatomical model, wherein the plurality of different regions corresponds to regions where calcifications occur, searching for and identifying calcifications in the sub-regions based on voxel grey value intensity values of the image data, and generating a signal indicative of one or more regions of voxels of the image data respectively corresponding to sub-regions including identified calcifications. A computing system (118) includes a processor that automatically determines a plurality of different groups of voxels of image data of a subject, wherein each group of voxels corresponds to a different sub-region of the cardiovascular system of the subject and each group of voxels corresponds to a region that includes a calcification identified in the image data.
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Citations
22 Claims
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1. A method, comprising:
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identifying a plurality of different anatomical sub-regions of a cardiovascular system of a subject in image data of the subject based on a subject specific cardiovascular anatomical model, wherein the plurality of different anatomical sub-regions corresponds to regions where calcifications occur; searching for calcifications in the sub-regions based on voxel grey value intensity values of the image data, identifying calcifications in a sub-region using a pre-determined threshold, wherein a first threshold is used for a first sub-region of the plurality of different anatomical sub-regions, a second threshold is used for a second sub-region of the plurality of different anatomical sub-regions, and the first and second thresholds are different; generating a signal indicative of one or more regions of voxels of the image data respectively corresponding to sub-regions including identified calcifications; determining calcium scores for at least one of the sub-regions determining relative severities for the calcium scores; assigning a different color to the different severities; generating a mapping between the relative severities and a surface of the subject specific cardiovascular anatomical model; and visually presenting the subject specific cardiovascular anatomical model, using the different colors assigned to the severities to identify the relative severities in corresponding sub-regions. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A computing system, comprising:
a processor that automatically determines a plurality of different groups of voxels of image data of a subject, wherein each group of voxels corresponds to a different sub-region of a cardiovascular system of the subject and each group of voxels corresponds to a region that includes a calcification identified in the image data, wherein the processor determines calcium score values for the plurality of different groups, determines relative severities for the calcium scores, assigns a different color to the different severities, generates a mapping between the relative severities and a surface of a subject specific cardiovascular anatomical model, and visually presents the subject specific cardiovascular anatomical model, using the different colors to identify the relative severities in corresponding sub-regions, wherein the processor is programmed to recommend at least one of an access point for an implant or a size of the implant based on a calcium score for a given sub-region. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. A non-transitory computer readable medium encoded with computer executable instructions, which, when executed by a computer processor, causes the computer processor to:
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identify a plurality of different anatomical sub-regions of a cardiovascular system of a subject in image data of the subject based on a subject specific cardiovascular anatomical model, wherein the plurality of different regions corresponds to regions where calcifications occur; search for and identify calcifications in the sub-regions based on voxel grey value intensity values of the image data; generate a signal indicative of one or more regions of voxels of the image data respectively corresponding to sub-regions including identified calcifications; determine calcium scores for at least one of the sub-regions determine relative seventies for the calcium scores; assign a different color to the different seventies; generate a mapping between the relative seventies and a surface of the subject specific cardiovascular anatomical model; assign a transparency value to the surface; and visually present the subject specific cardiovascular anatomical model, using the different colors assigned to the seventies to identify the relative seventies in corresponding sub-regions behind the surface.
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Specification