Image-based waveform parameter estimation
First Claim
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1. A method for determining a property of a biological vessel based on an improved estimation of a waveform parameter, comprising:
- (i) receiving image data of the biological vessel;
(ii) determining a centerline of the biological vessel based on the image data and generating a plurality of analysis planes that lie perpendicular to the centerline;
(iii) generating time-based waveforms based on the analysis planes;
(v) fitting surfaces to upslope regions of different subsets of the waveforms to derive local waveform parameters based on intersections of the surfaces with the upslope regions; and
(v) determining a global waveform parameter based on the local waveform parameters;
wherein the global waveform parameter is associated with the property of the biological vessel.
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Abstract
Disclosed herein is a framework for facilitating waveform parameter estimation. In accordance with one aspect, time-based waveforms are generated based on analysis planes positioned along a centerline of the vessel. A surface may be fitted to upslope regions of the waveforms to determine one or more waveform parameters based on intersection of the surface with the upslope regions.
16 Citations
20 Claims
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1. A method for determining a property of a biological vessel based on an improved estimation of a waveform parameter, comprising:
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(i) receiving image data of the biological vessel; (ii) determining a centerline of the biological vessel based on the image data and generating a plurality of analysis planes that lie perpendicular to the centerline; (iii) generating time-based waveforms based on the analysis planes; (v) fitting surfaces to upslope regions of different subsets of the waveforms to derive local waveform parameters based on intersections of the surfaces with the upslope regions; and (v) determining a global waveform parameter based on the local waveform parameters; wherein the global waveform parameter is associated with the property of the biological vessel. - View Dependent Claims (2, 3, 4)
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5. A system for determining a property of a biological vessel based on an improved estimation of a waveform parameter, comprising:
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a non-transitory memory device for storing computer readable program code, and a processor in communication with the memory device, the processor being operative with the computer readable program code to perform steps including; (i) receiving image data of at least one the biological vessel; (ii) determining a centerline of the biological vessel based on the image data and generating a plurality of analysis planes that lie perpendicular to the centerline; (iii) generating time-based waveforms based on the analysis planes positioned along a centerline of the vessel; (v) fitting surfaces to upslope regions of different subsets of the time-based waveforms to derive local waveform parameters based on intersections of the surfaces with the upslope regions; and (v) determining a global waveform parameter based on the local waveform parameters; wherein the global waveform parameter is associated with the property of the biological vessel. - View Dependent Claims (6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification