Breast tomosynthesis with flexible compression paddle
First Claim
1. A method of breast image reconstruction, the method comprising:
- positioning a breast on a support plate of an imaging system;
compressing the breast with a flexible paddle;
obtaining imaging data of the breast;
estimating a breast thickness profile by at least one of placing markers on the breast, performing an image-based analysis of the obtained data, using an auxiliary system, and performing a model-based computation; and
performing a three dimensional reconstruction of the breast using a thickness profile of the breast surface in at least one of an iterative reconstruction, a filtered back-projection reconstruction, and a joint reconstruction performed using information obtained from an ultrasound scan, the reconstruction including mitigation of effects associated with compression by the flexible compression paddle.
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Abstract
A method of breast image reconstruction includes positioning a breast on an imaging system support plate, compressing the breast with a flexible paddle, obtaining imaging data, estimating a breast thickness profile by at least one of placing markers on the breast, performing an image-based analysis of the obtained data, using an auxiliary system, and performing a model-based computation. The three dimensional reconstruction including using a thickness profile of the breast surface in at least one of an iterative reconstruction, a filtered back-projection reconstruction, and a joint reconstruction performed using information obtained from an ultrasound scan. A non-transitory medium having executable instructions to cause a processor to perform the method is also disclosed.
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Citations
18 Claims
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1. A method of breast image reconstruction, the method comprising:
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positioning a breast on a support plate of an imaging system; compressing the breast with a flexible paddle; obtaining imaging data of the breast; estimating a breast thickness profile by at least one of placing markers on the breast, performing an image-based analysis of the obtained data, using an auxiliary system, and performing a model-based computation; and performing a three dimensional reconstruction of the breast using a thickness profile of the breast surface in at least one of an iterative reconstruction, a filtered back-projection reconstruction, and a joint reconstruction performed using information obtained from an ultrasound scan, the reconstruction including mitigation of effects associated with compression by the flexible compression paddle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method of breast image reconstruction, the method comprising:
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positioning a breast on a compression plate of an imaging system; compressing the breast with a flexible paddle; obtaining imaging data of the breast; estimating a breast thickness profile by at least one of placing markers on the breast, performing an image-based analysis of the obtained data, using an auxiliary system, performing a model-based computation; and
;computing a volumetric breast density using the breast thickness profile in at least one of an iterative reconstruction, a filtered back-projection reconstruction, and a joint reconstruction performed using information obtained from an ultrasound scan, the computed volumetric breast density including mitigation of effects associated with compression by the flexible compression paddle. - View Dependent Claims (13)
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14. A non-transitory computer-readable medium having stored thereon instructions which when executed by a processor of a mammography imaging system cause the processor to perform a method of breast image reconstruction, the method comprising:
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positioning a breast on a compression plate of an imaging system; compressing the breast with a flexible paddle; obtaining imaging data of the breast; estimating a breast thickness profile by at least one of placing markers on the breast, performing an image-based analysis of the obtained data, using an auxiliary system, and performing a model-based computation; and performing a three dimensional reconstruction of the breast by including a pre-processing step that utilizes the estimated breast thickness profile and includes at least one of a shading correction including a thickness compensation, a step to enforce consistencies between multiple scan views, and a conversion of pixel values so that pixel values represent an average attenuation along a path length, the reconstruction including mitigation of effects associated with compression by the flexible compression paddle. - View Dependent Claims (15, 16, 17, 18)
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Specification