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Evaluation of a patch antenna applicator for time reversal hyperthemia

Hana Dobsicek Trefna (Institutionen för signaler och system, Biomedicinsk elektromagnetik) ; J. Vrba ; Mikael Persson (Institutionen för signaler och system, Biomedicinsk elektromagnetik)
International Journal of Hyperthermia (0265-6736). Vol. 26 (2010), 2, p. 185-197.
[Artikel, refereegranskad vetenskaplig]

Purpose: To describe the design, analysis and evaluation of a new antenna array system for microwave hyperthermia. The proposed antenna array was evaluated by the focusing method based on the time-reversal principle. Materials and methods: Power absorption distributions in a cylindrical homogeneous and inhomogeneous phantom were calculated for the frequency range 500-900 MHz. Two set-ups with 12 and 16 antennas were analysed by comparing the changes in focusing areas enclosed by the 50%, 75% and 90% iso-SAR contours. For a more quantitative evaluation of the results the average power absorption ratio and remaining tissue maximum index were calculated. Results: The sharpest focusing area in the centre of the phantom, 151 mm

Nyckelord: hyperthermia, deep-seated tumours, treatment planning, annular phased, array, patch antenna, time-reversal, conductor microstrip antennas, electromagnetic phased-arrays, regional, hyperthermia, dual-frequency, dielectric-properties, plus hyperthermia, randomized-trial, neck, design, head



Denna post skapades 2010-03-22. Senast ändrad 2016-07-25.
CPL Pubid: 118197

 

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Institutioner (Chalmers)

Institutionen för signaler och system, Biomedicinsk elektromagnetik

Ämnesområden

Medicinsk teknik

Chalmers infrastruktur

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Advances in Microwave Hyperthermia Treatment using Time Reversal