Medical image processing device, method and program
First Claim
1. A medical image processing device for extracting an endocardium of a left ventricle from 3D image data representing the left ventricle, the device comprising:
- a blood region extracting unit configured to extract a blood region in the left ventricle from the image data;
a convex and concave points identifying unit configured to find a convex hull from a plurality of sample points on a contour of the extracted blood region and identify convex points forming the convex hull and concave points, which are sample points other than the convex points; and
an endocardium determining unit configured to deform the contour of the blood region by moving at least a part of the concave points outward from the blood region by an amount determined based on a positional relationship among each concave point and the convex points located around the concave point and determine a deformed contour of the blood region to be the endocardium.
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Abstract
A medical image processing device for extracting an endocardium of a left ventricle from 3D image data representing the left ventricle is provided. The device includes: a blood region extracting unit to extract a blood region in the left ventricle from the image data; a convex and concave points identifying unit to find a convex hull from sample points on a contour of the extracted blood region and identify convex points forming the convex hull and concave points, which are sample points other than the convex points; and an endocardium determining unit to deform the contour of the blood region by moving at least a part of the concave points outward from the blood region by an amount determined based on a positional relationship among each concave point and the convex points located around the concave point and determine a deformed contour of the blood region to be the endocardium.
46 Citations
14 Claims
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1. A medical image processing device for extracting an endocardium of a left ventricle from 3D image data representing the left ventricle, the device comprising:
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a blood region extracting unit configured to extract a blood region in the left ventricle from the image data; a convex and concave points identifying unit configured to find a convex hull from a plurality of sample points on a contour of the extracted blood region and identify convex points forming the convex hull and concave points, which are sample points other than the convex points; and an endocardium determining unit configured to deform the contour of the blood region by moving at least a part of the concave points outward from the blood region by an amount determined based on a positional relationship among each concave point and the convex points located around the concave point and determine a deformed contour of the blood region to be the endocardium. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A medical image processing method for extracting an endocardium of a left ventricle from 3D image data representing the left ventricle, the method comprising the steps of:
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extracting a blood region in the left ventricle from the image data; finding a convex hull from a plurality of sample points on a contour of the extracted blood region and identifying convex points forming the convex hull and concave points, which are sample points other than the convex points; and deforming the contour of the blood region by moving at least a part of the concave points outward from the blood region by an amount determined based on a positional relationship among each concave point and the convex points located around the concave point and determining a deformed contour of the blood region to be the endocardium. - View Dependent Claims (8, 9, 10, 11, 12)
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13. A non-transitory computer readable medium containing a medical image processing program for causing a computer to execute an operation to extract an endocardium of a left ventricle from 3D image data representing the left ventricle, the program causing the computer to carry out the steps of:
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extracting a blood region in the left ventricle from the image data; finding a convex hull from a plurality of sample points on a contour of the extracted blood region and identifying convex points forming the convex hull and concave points, which are sample points other than the convex points; and deforming the contour of the blood region by moving at least a part of the concave points outward from the blood region by an amount determined based on a positional relationship among each concave point and the convex points located around the concave point and determining a deformed contour of the blood region to be the endocardium. - View Dependent Claims (14)
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Specification