Sound speed estimation using wave-based ultrasound tomography: theory and GPU implementation

O. Roy; I. Jovanović; A. Hormati; R. Parhizkar; M. Vetterli

doi:10.1117/12.844691

12 March 2010 Sound speed estimation using wave-based ultrasound tomography: theory and GPU implementation

O. Roy, I. Jovanović, A. Hormati, R. Parhizkar, M. Vetterli

Proceedings Volume 7629, Medical Imaging 2010: Ultrasonic Imaging, Tomography, and Therapy; 76290J (2010) https://doi.org/10.1117/12.844691
Event: SPIE Medical Imaging, 2010, San Diego, California, United States

Abstract

We present preliminary results obtained using a time domain wave-based reconstruction algorithm for an ultrasound transmission tomography scanner with a circular geometry. While a comprehensive description of this type of algorithm has already been given elsewhere, the focus of this work is on some practical issues arising with this approach. In fact, wave-based reconstruction methods suffer from two major drawbacks which limit their application in a practical setting: convergence is difficult to obtain and the computational cost is prohibitive. We address the first problem by appropriate initialization using a ray-based reconstruction. Then, the complexity of the method is reduced by means of an efficient parallel implementation on graphical processing units (GPU). We provide a mathematical derivation of the wave-based method under consideration, describe some details of our implementation and present simulation results obtained with a numerical phantom designed for a breast cancer detection application. The source code of our GPU implementation is freely available on the web at www.usense.org.

Citation Download Citation

O. Roy, I. Jovanović, A. Hormati, R. Parhizkar, and M. Vetterli "Sound speed estimation using wave-based ultrasound tomography: theory and GPU implementation", Proc. SPIE 7629, Medical Imaging 2010: Ultrasonic Imaging, Tomography, and Therapy, 76290J (12 March 2010); https://doi.org/10.1117/12.844691

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