Evaluation of a patch antenna applicator for time reversal hyperthemia
Journal article, 2010
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
deep-seated tumours
treatment planning
hyperthermia
design
hyperthermia
patch antenna
dielectric-properties
time-reversal
annular phased
randomized-trial
electromagnetic phased-arrays
array
regional
head
neck
plus hyperthermia
dual-frequency
conductor microstrip antennas
Author
Hana Dobsicek Trefna
Chalmers, Signals and Systems, Signal Processing and Biomedical Engineering
J. Vrba
Czech Technical University in Prague
Mikael Persson
Chalmers, Signals and Systems, Signal Processing and Biomedical Engineering
International Journal of Hyperthermia
0265-6736 (ISSN) 1464-5157 (eISSN)
Vol. 26 2 185-197Subject Categories
Medical Laboratory and Measurements Technologies
DOI
10.3109/02656730903436434
PubMed
20146572