13 March 2013 Diagnosing breast cancer using independent diffuse optical tomography and x-ray mammography scans
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Proceedings Volume 8574, Multimodal Biomedical Imaging VIII; 85740G (2013) https://doi.org/10.1117/12.2005649
Event: SPIE BiOS, 2013, San Francisco, California, United States
Abstract
We have previously demonstrated the utilization of spatially co-registered diffuse optical tomography (DOT) and digital breast tomosynthesis (DBT) for joint breast cancer diagnosis. However, clinical implementation of such a multi-modality approach may require development of integrated DOT/DBT imaging scanners, which can be costly and time-consuming. Exploring effective image registration methods that combine the diagnostic information from a standalone DOT measurement and a separate mammogram can be a cost-effective solution, which may eventually enable adding functional optical assessment to all previously installed digital mammography systems. In this study, we investigate a contour-based image registration method to convert independent optical and x-ray scans into co-registered datasets that can benefit from a joint image analysis. The breast surface used in 3D optical DOT reconstruction is registered with the breast contour line extracted from an x-ray mammogram acquired separately. This allows us to map the 2D mammogram to the optical measurement space and build structural constraints for optical image reconstruction. A non-linear reconstruction utilizing structure-priors is then performed to produce hemoglobin maps with improved resolution. To validate this approach, we used a set of tumor patient measurements with simultaneous DOT/DBT and separate 2D mammographic scans. The images recovered from the registration procedure derived from DOT and 2D mammogram present similar image quality compared to those recovered from co-registered DOT/DBT measurements.
© (2013) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Maxim Fradkin, Maxim Fradkin, Matthias C. Hofmann, Matthias C. Hofmann, Jean-Michel Rouet, Jean-Michel Rouet, Richard H. Moore, Richard H. Moore, Daniel B. Kopans, Daniel B. Kopans, Keith Tipton, Keith Tipton, Sankar Suryanarayanan, Sankar Suryanarayanan, David A. Boas, David A. Boas, Qianqian Fang, Qianqian Fang, } "Diagnosing breast cancer using independent diffuse optical tomography and x-ray mammography scans", Proc. SPIE 8574, Multimodal Biomedical Imaging VIII, 85740G (13 March 2013); doi: 10.1117/12.2005649; https://doi.org/10.1117/12.2005649
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