Improvement of Electric Field Focusing for Deep Hyperthermia in Breast Cancer Treatment by Using Microwave Dielectric Heating with Curved Plate Applicator

摘要

In this paper presents the improvement of electric field focusing by using microwave dielectric heating techniques with curved plate applicator for deep hyperthermia in breast cancer treatment. To focus on the deep heat distribution in the breast phantom close to the cancer cells, the electric loss density was analyzed in the cancer cells at different location inside of the breast phantom. This heating technique was implemented based on the electric field using the electrode plate applicator was excited by 2.45 GHz. The cancer cells position in breast phantom was located at different location in xy-plane and xz-plane. Simulation results show that the heating efficiency area can be relocated and deep focused when the rotation axis of curved plate has been rotated in the vertical or horizontal direction of breast phantom and also have describe that the heat distribution area to the affected neighboring tissues has been decreased. The maximum heating area was close to the cancer cells at the midpoint position between electrode plates. The CST microwave studio is used for simulation.