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
design
deep-seated tumours
annular phased
dual-frequency
neck
randomized-trial
array
plus hyperthermia
time-reversal
treatment planning
conductor microstrip antennas
dielectric-properties
patch antenna
regional
hyperthermia
head
electromagnetic phased-arrays
hyperthermia
Author
Hana Dobsicek Trefna
Chalmers, Signals and Systems, Signalbehandling och medicinsk teknik
J. Vrba
Ceske vysoke uceni technicke v Praze
Mikael Persson
Chalmers, Signals and Systems, Signalbehandling och medicinsk teknik
International Journal of Hyperthermia
0265-6736 (ISSN) 1464-5157 (eISSN)
Vol. 26 2 185-197Subject Categories (SSIF 2011)
Medical Laboratory and Measurements Technologies
DOI
10.3109/02656730903436434
PubMed
20146572