Optimization of microwave hyperthermia array applicators using field interpolation
Paper in proceedings, 2019

Phased array applicators for deep microwave hyper-thermia struggle to reach satisfying target-to-remaining power absorption ratios in the brain area. In our opinion, this is partly because their design is meant for an overall body region rather than a particular tumor. A paradigm shift in the antenna arrangement design is thus necessary: from regional applicator arrays to target-specific ones. Exploring all the possible array configurations and simulate them, however, is computationally unfeasible. This conference contribution presents an approximated method for determining the field distribution generated by an antenna at any desired location across the surface of the so-called water bolus. This approximated field can be effectively used within an array optimization algorithm, and initial results suggest that the optimal antenna arrangement for treating a child brain tumor differs substantially from that of a regular array.

Field interpolation

Microwave hyperthermia

Brain tumor

Applicator optimization

Author

Massimiliano Zanoli

Chalmers, Electrical Engineering, Signalbehandling och medicinsk teknik, Biomedical Electromagnetics

Hana Dobsicek Trefna

Chalmers, Electrical Engineering, Signalbehandling och medicinsk teknik, Biomedical Electromagnetics

2019 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, APSURSI 2019 - Proceedings

537-538 8889007

2019 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, APSURSI 2019
Atlanta, USA,

Subject Categories

Aerospace Engineering

Computational Mathematics

Signal Processing

DOI

10.1109/APUSNCURSINRSM.2019.8889007

More information

Latest update

11/29/2019