System and method for image based physiological monitoring of cardiovascular function
First Claim
1. A method for real time monitoring of cardiac function comprising the steps of:
- selecting a plane through a heart from which to acquire heart function data;
acquiring a 2-dimensional image from said selected plane, wherein said image comprises a plurality of intensities defined on a domain of points on a 2D grid;
selecting a center of a chamber of said heart;
projecting a plurality of beams into said image through said chamber center, each beam comprising a substantially collinear subset of points in said image;
sampling image intensities along each point of said beam; and
repeating said steps of acquiring a 2-dimensional image, projecting a plurality of virtual beams into said image, and calculating an image intensity to obtain a series of time measurements wherein an image intensity along each said beam can be plotted as a function of time.
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Abstract
A method for real time monitoring of cardiac function includes defining a plurality of planes through a heart from which to acquire heart imaging data, acquiring a sequence of 2-dimensional images from said selected planes, wherein each said image comprises a plurality of intensities defined on a domain of points on a 2D grid, selecting one or more of said sequence of images to provide imaging data for monitoring heart function, wherein said remaining unselected images are adapted for diagnostic purposes, and repeating said steps of acquiring a sequence of 2-dimensional images from said selected planes and selecting one or more of said sequence of images for monitoring heart function, wherein a time sequence of images is obtained, alternating between images for monitoring heart function and images for diagnostic purposes.
37 Citations
33 Claims
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1. A method for real time monitoring of cardiac function comprising the steps of:
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selecting a plane through a heart from which to acquire heart function data;
acquiring a 2-dimensional image from said selected plane, wherein said image comprises a plurality of intensities defined on a domain of points on a 2D grid;
selecting a center of a chamber of said heart;
projecting a plurality of beams into said image through said chamber center, each beam comprising a substantially collinear subset of points in said image;
sampling image intensities along each point of said beam; and
repeating said steps of acquiring a 2-dimensional image, projecting a plurality of virtual beams into said image, and calculating an image intensity to obtain a series of time measurements wherein an image intensity along each said beam can be plotted as a function of time. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method for real time monitoring of cardiac function comprising the steps of:
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defining a plurality of planes through a heart from which to acquire heart imaging data;
acquiring a sequence of 2-dimensional images from said selected planes, wherein each said image comprises a plurality of intensities defined on a domain of points on a 2D grid;
selecting one or more of said sequence of images to provide imaging data for monitoring heart function, wherein said remaining unselected images are adapted for diagnostic purposes; and
repeating said steps of acquiring a sequence of 2-dimensional images from said selected planes and selecting one or more of said sequence of images for monitoring heart function, wherein a time sequence of images is obtained, alternating between images for monitoring heart function and images for diagnostic purposes. - View Dependent Claims (13, 14, 15, 16, 17, 18)
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19. A program storage device readable by a computer, tangibly embodying a program of instructions executable by the computer to perform the method steps for real time monitoring of cardiac function, said method comprising the steps of:
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selecting a plane through a heart from which to acquire heart function data;
acquiring a 2-dimensional image from said selected plane, wherein said image comprises a plurality of intensities defined on a domain of points on a 2D grid;
selecting a center of a chamber of said heart;
projecting a plurality of beams into said image through said chamber center, each beam comprising a substantially collinear subset of points in said image;
sampling image intensities along each point of said beam; and
repeating said steps of acquiring a 2-dimensional image, projecting a plurality of virtual beams into said image, and calculating an image intensity to obtain a series of time measurements wherein an image intensity along each said beam can be plotted as a function of time. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33)
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Specification