1 April 2016 Frequency-domain ultrasound waveform tomography breast attenuation imaging
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Abstract
Ultrasound waveform tomography techniques have shown promising results for the visualization and characterization of breast disease. By using frequency-domain waveform tomography techniques and a gradient descent algorithm, we have previously reconstructed the sound speed distributions of breasts of varying densities with different types of breast disease including benign and malignant lesions. By allowing the sound speed to have an imaginary component, we can model the intrinsic attenuation of a medium. We can similarly recover the imaginary component of the velocity and thus the attenuation. In this paper, we will briefly review ultrasound waveform tomography techniques, discuss attenuation and its relations to the imaginary component of the sound speed, and provide both numerical and ex vivo examples of waveform tomography attenuation reconstructions.
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Gursharan Yash Singh Sandhu, Gursharan Yash Singh Sandhu, Cuiping Li, Cuiping Li, Olivier Roy, Olivier Roy, Erik West, Erik West, Katelyn Montgomery, Katelyn Montgomery, Michael Boone, Michael Boone, Neb Duric, Neb Duric, } "Frequency-domain ultrasound waveform tomography breast attenuation imaging", Proc. SPIE 9790, Medical Imaging 2016: Ultrasonic Imaging and Tomography, 97900C (1 April 2016); doi: 10.1117/12.2218374; https://doi.org/10.1117/12.2218374
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