Refine
Year of publication
Document Type
- In Proceedings (40)
- Article (17)
- ZIB-Report (15)
- Book chapter (1)
Is part of the Bibliography
- no (73)
Keywords
- hyperthermia (3)
- 3D Correspondence Problem (1)
- Diffusion Filtering (1)
- Geometric Distortion (1)
- Isoflächen (1)
- Maxwell's equations (1)
- Model-Based Segmentation (1)
- Pelvic heating (1)
- Simplifizierung (1)
- Statistical Shape Model (1)
- Surface Distance (1)
- Transparenzen (1)
- applicator design (1)
- finite elements (1)
- grid generation (1)
- image segmentation (1)
- interventional MRI (1)
- medical therapy planning (1)
- multilevel FEM (1)
- nonlinear elliptic (1)
- nonlinear heat transfer (1)
- phased array optimization (1)
- therapy planning (1)
- visualization (1)
Institute
Electromagnetic Phased Arrays for Regional Hyperthermia - Optimal Frequency and Antenna Arrangement
(2000)
Electromagnetic phased arrays for regional hyperthermia -- optimal frequency and antenna arrangement
(2000)
In this paper we investigate the effects of the three-dimensional arrangement of antennas and frequency on temperature distributions that can be achieved in regional hyperthermia using an electromagnetic phased array. We compare the results of power-based and temperature-based optimization. Thus we are able to explain the discrepancies between previous studies favouring more antenna rings on the one hand and more antennas per ring on the other hand. We analyze the sensitivity of the results with respect to changes in amplitudes and phases as well as patient position. This analysis can be used for different purposes. First, it provides additional criteria for selecting the optimal frequency. Second, it can be used for specifying the required phase and amplitude accuracy for a real phased array system. Furthermore, it may serve as a basis for technological developments in order to reduce both types of sensitivities described above.