Archives of Acoustics, 44, 4, pp. 625–636, 2019
10.24425/aoa.2019.129721

The Effect of Dynamic Beam Deflection and Focus Shift on the Acoustic Field Distribution Inside the Ultrasonic Ring Array

Wiktor STASZEWSKI
Wrocław University of Science and Technology
Poland

Tadeusz GUDRA
Wrocław University of Science and Technology
Poland

Krzysztof J. OPIELIŃSKI
Wrocław University of Science and Technology
Poland

This paper presents the results of acoustic field distribution simulations for the 1024-element ultrasonic ring array intended for the diagnosis of female breast tissue with the use of ultrasound tomography. For the purpose of analysing data, all acoustic fields created by each elementary transducer were combined. The natural position of the focus inside the ultrasonic ring array was changed by altering activation time of individual transducers in sectors consisting of 32, 64, and 128 ultrasonic transducers. Manipulating the
position of the focus inside the array will allow to concentrate the ultrasonic beam in a chosen location in the interior space of the ring array. The goal of this research is to receive the best possible quality of images of cross-sections of the female breast. The study also analysed the influence of the acoustic field distribution on the inclination of the beam. The results will enable to choose an optimal focus and an optimal number of activated transducers.
Keywords: ultrasonic ring array; acoustic field distribution; ultrasonic beam focusing; ultrasound tomography
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References

Birk M., Kretzek E., Figuli P., Weber M., Becker J., Ruiter N.V. (2016), High-speed medical imaging in 3D ultrasound computer tomography. IEEE Transactions on Parallel and Distributed Systems, 27, 2, 455–467, doi: 10.1109/TPDS.2015.2405508.

Duck F.A. (1990), Physical Properties of Tissue – A Comprehensive Reference Book, 1st ed. London: Academic Press.

Duric N. et al. (2007), Detection of breast cancer with ultrasound tomography: first results with the Computed Ultrasound Risk Evaluation (CURE) prototype, Medical Physics, 34, 2, 773–785, doi: 10.1118/1.2432161.

Duric N. et al. (2013), Breast imaging with the Soft-Vue imaging system: first results, [in:] Medical Imaging 2013: Ultrasonic Imaging, Tomography, and Therapy, Proceedings of SPIE, Bosch J.G., Doyley M.M. [Eds], Vol. 8675, p. 86750K-1-8, doi: 10.1117/12.2002513.

Entrekin R., Jackson P., Jago J.R., Porter B.A. (1999), Real time spatial compound imaging in breast ultrasound: technology and early clinical experience, Medicamundi, 43, 3, 35–43.

Gudra T., Opielinski K. (2006a), The ultrasonic probe for investigating of internal object structure by ultrasound transmission tomography, Ultrasonics, 44, Supplement, e679–e683, doi: 10.1016/j.ultras.2006.05.126.

Gudra T., Opielinski K. (2006b), The multi-element probes for ultrasound transmission tomography, [in:] Journal de Physique IV (Proceedings), Vol. 137, pp. 79–86, doi: 10.1051/jp4:2006137015.

Gudra T., Opielinski K.J. (2006c), A method of visualizing the internal structure of the center and a device for implementing this method [in Polish: Sposób wizualizacji struktury wewnetrznej ośrodka i urządzenie do realizacji tego sposobu], Patent No 210202, Poland.

Jirik R. et al. (2012), Sound-speed image reconstruction insparse-aperture 3-D ultrasound transmission tomography, IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, 59, 2, 254–264, doi: 10.1109/TUFFC.2012.2185.

Marmarelis V.Z., Jeong J., Shin D.C., Do S. (2007), High-resolution 3-D imaging and tissue differentiation with transmission tomography, [in:] Acoustical imaging, André M.P. et al. [Eds], Vol. 28, pp. 195–206, Springer Netherlands, Dordrecht, doi: 10.1007/1-4020-5721-0_21.

Opielinski K.J. (2011), Application of Transmission of Ultrasonic Waves for Characterization and Imaging of Biological Media Structures [in Polish], Printing House of Wroclaw University of Science and Technology, Wrocław.

Opielinski K.J. et al. (2015), Imaging results of multi-modal ultrasound computerized tomography system designed for breast diagnosis, Computerized Medical Imaging and Graphics, 46, 2, 83–94, doi: 10.1016/j.compmedimag.2015.02.004.

Opielinski K.J. et al. (2018), Multimodal ultrasound computer-assisted tomography: An approach to the recognition of breast lesion, Computerized Medical Imaging and Graphics, 65, 102–114, doi: 10.1016/j.compmedimag.2017.06.009.

Opielinski K.J. et al. (2016), Breast ultrasound tomography: preliminary in vivo results, [in:] Pietka E., Badura P., Kawa J., Wieclawek W. [Eds], Information technologies in medicine, Vol. 1, Springer International Publishing, pp. 193–205, doi: 10.1007/978-3-319-39796-2_16.

Opielinski K.J., Pruchnicki P., Gudra T., Majewski J. (2014), Full angle ultrasound spatial compound imaging. In: Proceedings of 7th Forum Acusticum 2014 Joined with 61st Open Seminar on Acoustics and Polish Acoustical Society – Acoustical Society of Japan Special Session Stream [CD-ROM], Krakow: European Acoustics Association (ISSN 2221-3767).

Staszewski W., Gudra T., Opielinski K.J. (2018), The acoustic field distribution inside the ultrasonic ring array, Archives of Acoustics, 43, 3, 455–463, doi: 10.24425/123917.

Wiskin J. et al. (2013), Threedimensional nonlinear inverse scattering: quantitative transmission algorithms, refraction corrected reflection, scanner design and clinical results, Proceedings of Meetings on Acoustics, 19, 1, 075001, doi: 10.1121/1.4800267.




DOI: 10.24425/aoa.2019.129721