Automated method and system for the differentiation of bone disease on radiographic images
First Claim
1. A method of analyzing a medical image to determine a measure of bone strength, comprising:
- identifying plural regions of interest (ROIs) in the medical image;
calculating at least one texture feature value for each ROI;
averaging the at least one texture feature value calculated for each ROI to obtain at least one average texture feature value; and
determining the measure of bone strength based on the at least one average texture feature value.
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Accused Products
Abstract
A method, system, and computer program product for analyzing a medical image to determine a measure of bone strength, comprising identifying plural regions of interest (ROIs) in the medical image; calculating at least one texture feature value for each ROI; averaging the at least one texture feature value calculated for each ROI to obtain at least one average texture feature value; and determining the measure of bone strength based on the at least one average texture feature value using a classifier. Alternatively, the image data in each ROI is first transformed into the frequency domain and averaged to obtain an average image. This process reduces noise and improves the performance of the system. The assessment of bone strength and/or osteoporosis is used as a predictor of risk of fracture.
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Citations
21 Claims
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1. A method of analyzing a medical image to determine a measure of bone strength, comprising:
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identifying plural regions of interest (ROIs) in the medical image;
calculating at least one texture feature value for each ROI;
averaging the at least one texture feature value calculated for each ROI to obtain at least one average texture feature value; and
determining the measure of bone strength based on the at least one average texture feature value. - View Dependent Claims (2, 3, 4, 20, 21)
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5. A method of analyzing a medical image to determine a measure of bone strength, comprising:
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identifying plural regions of interest (ROIs) in the medical image;
transforming image data in each of said ROIs into respective frequency domain image data;
averaging the respective frequency domain image data to obtain average image data;
calculating at least one texture feature value from the average image data; and
determining the measure of bone strength based on the at least one texture feature value. - View Dependent Claims (6, 7, 8, 9)
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10. A method of analyzing plural medical images to determine a measure of bone strength, comprising:
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identifying a region of interest (ROI) having a corresponding center pixel in each medical image;
transforming image data in the ROI of each medical image into respective frequency domain image data;
averaging the respective frequency domain image data to obtain average image data;
calculating at least one texture feature value from the average image data; and
determining the measure of bone strength based on the at least one texture feature value. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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17. A method of analyzing a medical image to determine a measure of bone strength, comprising:
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identifying plural regions of interest (ROIs) in the medical image, each ROI having a corresponding center pixel;
transforming image data in each of said ROIs into respective frequency domain image data;
calculating at least one texture feature value for each ROI using the respective frequency domain image data; and
determining the measure of bone strength based on the at least one texture feature value. - View Dependent Claims (18)
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19. A method of analyzing plural medical images to form at least one texture feature image, comprising:
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identifying a region of interest (ROI) having a corresponding center pixel in each medical image;
calculating at least one texture feature value for the ROI in each medical image;
averaging the at least one texture feature value of each medical image in the plural medical images;
repeating the identifying, calculating, and averaging steps for a plurality of ROIs having a corresponding plurality of center pixels;
associating the at least one feature value calculated in each calculating step with a center pixel in the corresponding plurality of center pixels to form the at least one texture feature image.
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Specification