Archives of Acoustics, 43, 3, pp. 455–463, 2018
10.24425/123917

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. OPIELINSKI
Wrocław University of Science and Technology
Poland

This paper presents and analyses the results of a simulation of the acoustic field distribution in sectors of a 1024-element ring array, intended for the diagnosis of female breast tissue with the use of ultrasonic tomography. The array was tested for the possibility to equip an ultrasonic tomograph with an additional modality - conventional ultrasonic imaging with the use of individual fragments (sections) of the ring array. To determine the acoustic field for sectors of the ring array with a varying number of activated ultrasonic transducers, a combined sum of all acoustic fields created by each elementary transducer was calculated. By the use of MATLAB software, a unique algorithm was developed, for a numerical determination of the distribution of pressure of an ultrasonic wave on any surface or area of the medium generated by the concave curvilinear structure of rectangular ultrasound transducers with a geometric focus of the beam. The analysis of the obtained results of the acoustic field distribution inside the ultrasonic ring array used in tomography allows to conclude that the optimal number of transducers in a sector enabling to obtain ultrasound images using linear echographic scanning is 32 ≤ $n$ ≤ 128, taking into account that due to an increased temporal resolution of ultrasonic imaging, this number should be as low as possible.
Keywords: ultrasound transmission tomography; acoustic field; ultrasonic multi-element array
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Copyright © Polish Academy of Sciences & Institute of Fundamental Technological Research (IPPT PAN).

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.

Duck F.A. (1990), Physical properties of tissue. A comprehensive reference book, 1st ed., Academic Press, London.

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.

Duric N., Littrup P., Schmidt S., et al. (2013), Breast imaging with the SoftVue imaging system: first results, [In:] Medical Imaging 2013: Ultrasonic Imaging, Tomography, and Therapy, Proceedings of SPIE.SPIE, Bosch J.G., Doyley M.M. (Eds.), Vol. 8675, p. 86750K-1-8.

Entrekin R., Jackson P., Jago J.R., Porter B.A. (1999), Real Time Spatial Compound Imaging in Breast Ultrasound: Technology and Early Clinical Experience, Medica-Mundi, 43, 3, 35–43.

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.

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, Springer, Dordrecht, pp. 195–206.

Opieliński 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, Wroclaw.

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).

Opieliński K.J., et al. (2015), Imaging results of multi-modalultrasound computerized tomography system designed for breast diagnosis, Computerized Medical Imaging and Graphics, 46, 83–94.

Opieliński K.J., et al. (2016), Breast ultrasound tomography: preliminary in vivo results, [In:] Information Technologies in Medicine, Piętka E., Badura P., Kawa J., Wieclawek W. (Eds.), Vol. 1, Springer International Publishing, pp. 193–205.

Opieliński 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.

Wiskin J., et al. (2013), Three-dimensional nonlinear inverse scattering: quantitative transmission algorithms, refraction corrected reflection, scanner design and clinical results, [In:] Proceedings of Meetings on Acoustics ICA2013, Vol. 19, No. 1, p. 075001, ASA.




DOI: 10.24425/123917