SAR optimization for multi-dipole antenna array with regard to local hyperthermia

• Autorzy: Gas Piotr , Miaskowski Arkadiusz

Identyfikatory

DOI

10.15199/48.2019.01.05

Warianty tytułu

PL

Optymalizacja współczynnika SAR dla szyku z wieloma antenami dipolowymi pod kątem hipertermii miejscowej

• Języki publikacji: EN

Abstrakty

EN

The following paper describes the valid optimization problem of multi-element circular array that contains 16 equal-length dipole antennas surrounding given two-spherical object. The task of the authors was to maximize the specific absorption rate (SAR) inside the inner object, while maintaining its minimum value in the external sphere. The proposed approach includes changes in the powers and phases of the voltage sources supplying individual dipoles of the antenna matrix. The shown method may have huge impact in localized tumor heating during thermal therapy.

PL

Niniejsza praca opisuje ważny problem optymalizacji wieloelementowego szyku kołowego, który zawiera 16 anten dipolowych, o równej długości, otaczających dwu-sferyczny obiekt. Zadaniem autorów była maksymalizacja współczynnika absorpcji własnej (SAR) w wewnętrznym obiekcie, przy zachowaniu jego minimalnej wartości w zewnętrznej kuli. Zaproponowane podejście uwzględnia zmiany mocy i faz źródeł napięciowych zasilających poszczególne dipole szyku antenowego. Przedstawiona metoda może mieć olbrzymi wpływ na zlokalizowane grzanie guza podczas terapii ciepłem.

Słowa kluczowe

EN

dipole antenna; phased array; optimization; specific absorption rate (SAR); hyperthermia; FDTD method

PL

antena dipolowa; układ anten fazowanych; optymalizacja; współczynnik SAR; hipertermia; metoda FDTD

• Wydawca: Wydawnictwo SIGMA-NOT
• Czasopismo: Przegląd Elektrotechniczny
• Rocznik: 2019
• Tom: R. 95, nr 1
• Strony: 17--20
• Opis fizyczny: Bibliogr. 24 poz., rys., tab., wykr.

Twórcy

autor

Gas Piotr

• AGH University of Science and Technology, Department of Electrical and Power Engineering, al. Mickiewicza 30, 30-059 Krakow

autor

Miaskowski Arkadiusz

• University of Life Sciences in Lublin, Department of Applied Mathematics and Computer Sciences, ul. Akademicka 13, 20-950 Lublin, Poland

Bibliografia

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• [2] Miaskowski A., Gas P., Szczygiel M., Optimization of SAR coefficient for dipole antennas array with regard to local hyperthermia, in 2018 Applications of Electromagnetics in Modern Techniques and Medicine (PTZE), IEEE, (2018), [1-4]. Available at: http://dx.doi.org/10.1109/PTZE.2018.8503175
• [3] Karampatzakis A., et al., Heating characteristics of antenna arrays used in microwave ablation: A theoretical parametric study, Computers in Biology and Medicine, 43 (2013), No. 10, 1321-1327.
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• [18] Osaci M., Numerical Simulation Methods of Electromagnetic Field in Higher Education: Didactic Application with Graphical Interface for FDTD Method, International Journal of Modern Education and Computer Science, 10 (2018), No. 8, 1-10.
• [19] Ciosk K., Krawczyk A., Calculation of SAR in biological object of different parameters, Przeglad Elektrotechniczny, 83 (2007), No. 7-8, 93-95.
• [20] Miaskowski A., Gas P., and Krawczyk A., SAR Calculations for Titanium Bar-Implant Subjected to Microwave Radiation, 2016 17th International Conference Computational Problems of Electrical Engineering (CPEE), IEEE, (2016), [1-4]. Available at: http://dx.doi.org/10.1109/CPEE.2016.7738726
• [21] Corcoles J., et al., On the estimation of the worst-case implant-induced RF-heating in multi-channel MRI, Physics in Medicine & Biology, 62 (2017), No. 12, 4711-4727.
• [22] Pennes H.H, Analysis of Tissue and Arterial Blood Temperatures in the Resting Human Forearm, Journal of Applied Physiology, 85 (1998), No. 1, 5-34.
• [23] Cappiello G., et al., Differential evolution optimization of the SAR distribution for head and neck hyperthermia, IEEE Transactions on Biomedical Engineering, 64 (2017), No. 8, 1875-1885.
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Uwagi

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019).