Creation of motion compensated MRI M-mode images of the myocardial wall
First Claim
1. A method for displaying medical image data, comprising:
- receiving medical image data including a myocardium;
automatically segmenting an endocardial contour from the received medical image data;
determining a center of mass of the automatically segmented endocardial contour;
defining a plurality of equiangular projections that are equiangular with respect to each other, begin from the center of mass, project outwardly from the center of mass, cross the endocardial contour, and end at a point beyond the endocardial contour;
defining a plurality of normal projections that correspond to the plurality of equiangular projections, wherein each normal projection begins from the end point of a corresponding equiangular projection and extends for a predetermined length, and each normal projection is defined as the closest possible line to the corresponding equiangular projection that crosses the endocardial contour at a right angle; and
displaying dynamics of the myocardium along each normal projection as a function of time, wherein each of the above steps are performed by one or more image processing devices.
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Abstract
A method for displaying medical image data includes receiving medical image data including a myocardium. An endocardial contour is automatically segmented from the received medical image data. A center of mass of the automatically segmented endocardial contour is determined. A plurality of equiangular projections is defined beginning from the center of mass and projecting outwardly and cross the endocardial contour. A plurality of normal projections that correspond to the plurality of equiangular projections is defined. Each normal projection begins from an end of a corresponding equiangular projection and extends for a predetermined length, crossing the endocardial contour at a right angle. Dynamics of the myocardium along each normal projection are displayed as a function of time.
13 Citations
13 Claims
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1. A method for displaying medical image data, comprising:
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receiving medical image data including a myocardium; automatically segmenting an endocardial contour from the received medical image data; determining a center of mass of the automatically segmented endocardial contour; defining a plurality of equiangular projections that are equiangular with respect to each other, begin from the center of mass, project outwardly from the center of mass, cross the endocardial contour, and end at a point beyond the endocardial contour; defining a plurality of normal projections that correspond to the plurality of equiangular projections, wherein each normal projection begins from the end point of a corresponding equiangular projection and extends for a predetermined length, and each normal projection is defined as the closest possible line to the corresponding equiangular projection that crosses the endocardial contour at a right angle; and displaying dynamics of the myocardium along each normal projection as a function of time, wherein each of the above steps are performed by one or more image processing devices. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method for displaying medical image data, comprising:
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receiving magnetic resonance (MR) image data; automatically segmenting a structure of interest from the received image data; determining a center of mass of the automatically segmented structure of interest; defining a plurality of equiangular projections that are equiangular with respect to each other, begin from the center of mass, project outwardly from the center of mass, cross the perimeter of the structure of interest, and end at a point beyond the structure of interest; defining a plurality of normal projections that correspond to the plurality of equiangular projections, wherein each normal projection begins from the end point of a corresponding equiangular projection and extends for a predetermined length, and each normal projection is defined as the closest possible line to the corresponding equiangular projection that crosses the perimeter of the structure of interest at a right angle; and displaying an M-mode image along each normal projection, wherein each of the above steps are performed by one or more image processing devices, wherein the structure of interest is an endocardial contour. - View Dependent Claims (12, 13)
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Specification