Patient-specific coronary territory mapping
First Claim
1. A method for patient-specific coronary territory mapping comprising performing the following with a processor:
- receiving three-dimensional (“
3D”
) image data;
fitting a geometric model to the received data;
segmenting coronary vessels from the received data;
mapping the segmented vessels to the surface of the model;
computing a Voronoi diagram responsive to the mapping on an epicardial surface; and
dividing the surface based on proximity to the source arteries,wherein the model is based on at least one of population and nonuniform rational B-splines (“
NURB”
) and using the patient-specific coronary territory mapping model to determine if medical intervention is needed in the patient.
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Accused Products
Abstract
A system and method for patient-specific coronary territory mapping are provided, the system including an adapter unit for receiving three-dimensional (“3D”) image data, a modeling unit in signal communication with the adapter unit for fitting a geometric model to the received data and segmenting coronary vessels from the received data, and a mapping unit in signal communication with the modeling unit for mapping the segmented vessels to the surface of the model; and the method including receiving 3D image data, fitting a geometric model to the received data, segmenting coronary vessels from the received data, and mapping the segmented vessels to the surface of the model.
39 Citations
28 Claims
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1. A method for patient-specific coronary territory mapping comprising performing the following with a processor:
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receiving three-dimensional (“
3D”
) image data;fitting a geometric model to the received data; segmenting coronary vessels from the received data; mapping the segmented vessels to the surface of the model; computing a Voronoi diagram responsive to the mapping on an epicardial surface; and dividing the surface based on proximity to the source arteries, wherein the model is based on at least one of population and nonuniform rational B-splines (“
NURB”
) and using the patient-specific coronary territory mapping model to determine if medical intervention is needed in the patient. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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10. A method for patient-specific coronary territory mapping comprising performing the following with a processor:
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receiving three-dimensional (“
3D”
) image data;fitting a geometric model to the received data; segmenting coronary vessels from the received data; and mapping the segmented vessels to the surface of the model, wherein said mapping is a function of the proximity of each vessel along an epicardial surface and prior knowledge of perfusion patterns in myocardia, and the prior knowledge is indicative of septums that lack a supply from close primary vessels and using the patient-specific coronary territory mapping model to determine if medical intervention is needed in the patient. - View Dependent Claims (11)
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23. A method for patient-specific coronary territory mapping comprising performing the following with a processor:
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receiving three-dimensional (“
3D”
) image data;fitting a geometric model to the received data; segmenting coronary vessels from the received data; mapping the segmented vessels to the surface of the model; labeling the model via competitive region growing to provide a patient-specific coronary map; and dividing the surface of the model into at least three territories in accordance with proximities to the segmented vessels, wherein the model is based on at least one of population and nonuniform rational B-splines (“
NURB”
) and using the patient-specific coronary territory mapping model to determine if medical intervention is needed in the patient.
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24. A method for patient-specific coronary territory mapping comprising performing the following with a processor:
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receiving three-dimensional (“
3D”
) image data;fitting a geometric model to the received data; segmenting coronary vessels from the received data; mapping the segmented vessels to the surface of the model; and labeling the entire surface of the model such that each point on the surface is associated with the vessel most likely responsible for irrigation, wherein the labeling comprises competitive region growing, each group of points during competitive region growing expands simultaneously over the surface and halts when the front of one group meets the front of another group, and the model is based on at least one of population and nonuniform rational B-splines (“
NURB”
) and using the patient-specific coronary territory mapping model to determine if medical intervention is needed in the patient.
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25. A method for patient-specific coronary territory mapping comprising performing the following with a processor:
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receiving three-dimensional (“
3D”
) image data;fitting a geometric model to the received data; segmenting coronary vessels from the received data; mapping the segmented vessels to the surface of the model; and computing an average territory map for a large population of subjects, the map including confidence values associated with the region assignments, wherein the model is based on at least one of population and nonuniform rational B-splines (“
NURB”
) and using the patient-specific coronary territory mapping model to determine if medical intervention is needed in the patient.
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26. A method for patient-specific coronary territory mapping comprising performing the following with a processor:
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receiving three-dimensional (“
3D”
) image data;fitting a geometric model to the received data; segmenting coronary vessels from the received data; mapping the segmented vessels to the surface of the model; and labeling the entire surface of the model such that each point on the surface is associated with the vessel most likely responsible for its irrigation, wherein regions not directly perfused are excluded from labeling, and the model is based on at least one of population and nonuniform rational B-splines (“
NURB”
) and using the patient-specific coronary territory mapping model to determine if medical intervention is needed in the patient.
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27. A method for patient-specific coronary territory mapping comprising performing the following with a processor:
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receiving three-dimensional (“
3D”
) image data;fitting a geometric model to the received data; segmenting coronary vessels from the received data; mapping the segmented vessels to the surface of the model; and labeling the entire surface of the model such that each point on the surface is associated with the vessel most likely responsible for its irrigation, wherein labeling comprises a random walk simulation, and the model is based on at least one of population and nonuniform rational B-splines (“
NURB”
) and using the patient-specific coronary territory mapping model to determine if medical intervention is needed in the patient.
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28. A method for patient-specific coronary territory mapping comprising performing the following with a processor:
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receiving three-dimensional (“
3D”
) image data;fitting a geometric model to the received data; segmenting coronary vessels from the received data; mapping the segmented vessels to the surface of the model; projecting the segmented vessels onto the epicardial surface of a left ventricle by discretizing the vessel path and finding the closest point on the epicardial surface for each point along the path; and expanding the multiple projections simultaneously over the surface to form perfusion regions, wherein portions of vessels farther than a threshold distance from the left ventricular epicardial surface are excluded to remove segments not responsible for irrigating the left ventricle, and the model is based on at least one of population and nonuniform rational B-splines (“
NURB”
) and using the patient-specific coronary territory mapping model to determine if medical intervention is needed in the patient.
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Specification