SAR Patterns of Invasive and Non-invasive Antenna Array in Combination of Hyperthermia and Radiation Brachytherapy
SAR Patterns of Invasive and Non-invasive Antenna Array in Combination of Hyperthermia and Radiation Brachytherapy
著者:
Oiendrila B_DEBNATH Kazuyuki SAITO Koichi ITO Mitsuru UESAKA
発刊日:
公開日:
Antenna arrayMicrowave hyperthermiaRadiation doseSpecific absorption rate
概要
Combination of Microwave Hyperthermia and Radiation Therapy is effective for treatment of tumor. After increasing the temperature the tumor becomes more sensitive to radiation dose. In this paper, the Invasive and Non-invasive microwave antennas were designed and applied on different tissues including malignant tumor, and respective Specific Absorption rate (SAR) patterns and temperature rises were investigated. For invasive antenna, coaxial-slot antennas was investigated and for non-invasive antenna, micro strip patch antenna and spiral antenna were investigated. The objective in the current phase of research work is to find the most optimum antenna array which can be effectively used for breast tumor with minimal impact on the adjacent tissues. Both theory and experiment demonstrated that the maximum SAR occurred in the junction plane of antenna arrays. These experiments have been conducted using a frequency of 2.45GHz.
