24 February 2012 Ultrasound waveform tomography with the total-variation regularization for detection of small breast tumors
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Abstract
Waveform tomography has the potential to quantitatively reconstruct the sound speed values of breast tumors. It is difficult to obtain quantitative values of the sound speed of breast tumors when their sizes are in the order of, or smaller than, the ultrasound wavelength. Because of the ill-posedness of the full-waveform inversion, regularization techniques are usually used to improve reconstruction. We develop an ultrasound waveform tomography method with the total-variation regularization to improve sound-speed reconstructions of small breast tumors. Our numerical examples demonstrate that our ultrasound waveform tomography with the total-variation regularization is a promising tool for quantitative estimation of the sound speed of small breast tumors.
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Youzuo Lin, Youzuo Lin, Lianjie Huang, Lianjie Huang, Zhigang Zhang, Zhigang Zhang, } "Ultrasound waveform tomography with the total-variation regularization for detection of small breast tumors", Proc. SPIE 8320, Medical Imaging 2012: Ultrasonic Imaging, Tomography, and Therapy, 832002 (24 February 2012); doi: 10.1117/12.910765; https://doi.org/10.1117/12.910765
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