Systems and methods for generating an imaging biomarker that indicates detectability of conspicuity of lesions in a mammographic image
First Claim
1. A method for generating an imaging biomarker that indicates a degree of lesion masking in a mammographic image obtained with an x-ray imaging system, the steps of the method comprising:
- (a) providing a mammographic image acquired with an x-ray imaging system;
(b) processing the mammographic image to estimate a task-based measure that is based on a statistical measure of a detection task;
(c) generating an imaging biomarker that indicates a degree of lesion masking in mammographic image based on the estimated task-based measure; and
(d) generating a report that indicates the degree of lesion masking in the mammographic image based on the generated imaging biomarker.
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Abstract
Systems and methods for generating imaging biomarkers that indicate detectability or conspicuity of lesions that may be present in mammographic images are provided. In general, a task-based measure of a signal-to-noise ratio (“SNR”) measurement of a detection task is computed over a number of small regions-of-interest (“ROIs”) in an image, and the computed parameter is used to predict what detection rates should be if a lesion was present in the image. As such, the computed parameter can be used to define an imaging biomarker that is a “masking measure” that indicates the degree of conspicuity of lesions that may be present in a given a mammographic image.
24 Citations
29 Claims
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1. A method for generating an imaging biomarker that indicates a degree of lesion masking in a mammographic image obtained with an x-ray imaging system, the steps of the method comprising:
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(a) providing a mammographic image acquired with an x-ray imaging system; (b) processing the mammographic image to estimate a task-based measure that is based on a statistical measure of a detection task; (c) generating an imaging biomarker that indicates a degree of lesion masking in mammographic image based on the estimated task-based measure; and (d) generating a report that indicates the degree of lesion masking in the mammographic image based on the generated imaging biomarker. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
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Specification