Adoption and evaluation of a multistatic Fourier-based synthetic aperture radar method for ultrasound imaging

Edgar M. G. Dorausch; Daniel Swist; Moritz Herzog; Christoph Statz; Julian Kober; Cornelius Kühnöl; Tönnis Trittler; Nora Martens; Franz Brinkmann; Jochen Hampe; Gerhard Fettweis

doi:10.1117/12.2653898

10 April 2023 Adoption and evaluation of a multistatic Fourier-based synthetic aperture radar method for ultrasound imaging

Edgar M. G. Dorausch, Daniel Swist, Moritz Herzog, Christoph Statz, Julian Kober, Cornelius Kühnöl, Tönnis Trittler, Nora Martens, Franz Brinkmann, Jochen Hampe, Gerhard Fettweis

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Proceedings Volume 12470, Medical Imaging 2023: Ultrasonic Imaging and Tomography; 124700U (2023) https://doi.org/10.1117/12.2653898
Event: SPIE Medical Imaging, 2023, San Diego, California, United States

Conference Poster

Abstract

Multistatic synthetic aperture (SA) imaging allows for dynamic focusing for all points in the image, in contrast to conventional beamforming techniques. As further improvement of image quality the use of frequency modulated continuous wave (FMCW) systems could be considered. However, algorithms need to be adapted to handle imaging in these settings efficiently. In this paper, the use of a Fourier-based imaging (FBI) method from microwave radar technology is proposed for an ultrasound system suitable for FMCW operation. The FBI method is compared to the delay-and-sum (DAS) method regarding the theoretical time complexity using the random access machine computer model. Run-time measurements using C++ implementations as well as the comparison of image quality using the array performance index are conducted. It could be shown, that the FBI method has an overall better time complexity than DAS within FMCW settings. Moreover, the FBI method consistently outperforms DAS regarding its image quality.

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Edgar M. G. Dorausch, Daniel Swist, Moritz Herzog, Christoph Statz, Julian Kober, Cornelius Kühnöl, Tönnis Trittler, Nora Martens, Franz Brinkmann, Jochen Hampe, and Gerhard Fettweis "Adoption and evaluation of a multistatic Fourier-based synthetic aperture radar method for ultrasound imaging", Proc. SPIE 12470, Medical Imaging 2023: Ultrasonic Imaging and Tomography, 124700U (10 April 2023); https://doi.org/10.1117/12.2653898

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