Breast cancer detection based on time reversal and the optical theorem

Edwin A. Marengo; Jing Tu

doi:10.1117/12.2082355

17 March 2015 Breast cancer detection based on time reversal and the optical theorem

Edwin A. Marengo, Jing Tu

Proceedings Volume 9419, Medical Imaging 2015: Ultrasonic Imaging and Tomography; 941915 (2015) https://doi.org/10.1117/12.2082355
Event: SPIE Medical Imaging, 2015, Orlando, Florida, United States

Abstract

We report a wave physics-based approach to change detection which can be used to detect anomalies in biological tissues such as cancer lesions from active sensing data. Of particular interest are nonionizing radiation methods such as microwave breast imaging, ultrasound imaging, and diffuse optical tomography. The biological medium surrounding the target of interest, e.g., a tumor, is assumed to be highly nonhomogeneous and reverberating. This implies that there are in general multiple paths for the propagation of wave signals from an interior domain where the target of interest is located to the sensing aperture where the scattered fields are measured. Two physical concepts are used to exploit this rich multipath environment so as to enhance change detection performance: wave time reversal, and the optical theorem which describes energy conservation in scattering phenomena. Previous related work has reported the use of time reversal for breast cancer detection. We use not only time reversal, but also the optical theorem, and propose novel algorithms based on both.

Citation Download Citation

Edwin A. Marengo and Jing Tu "Breast cancer detection based on time reversal and the optical theorem", Proc. SPIE 9419, Medical Imaging 2015: Ultrasonic Imaging and Tomography, 941915 (17 March 2015); https://doi.org/10.1117/12.2082355

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