Title :
FDTD simulation of interstitial antenna for bone cancer microwave hyperthermic therapy
Author :
Xiaoli, Xi ; Wenbing, Wang
Author_Institution :
Xi´´an Jiaotong Univ., China
Abstract :
The simulation of electromagnetic field distribution in tissue associated with the antenna structure is very important for the treatment of bone cancer. An FDTD code, employing a subgridding mesh, has been used for studying electromagnetic distribution in bone tissues. The results prove that the antennas with a λ/4 conductor sleeve can reduce the electromagnetic energy leakage of the antenna in free space and cut down electromagnetic pollution. The slot antenna can heat more tissue along the antenna, while its electromagnetic energy out the tissue is also more serious than the others. These results are useful in clinics for choosing the antenna structure, depending on the size and location of the tumor.
Keywords :
aperture antennas; bone; cancer; computational electromagnetics; finite difference time-domain analysis; hyperthermia; mesh generation; radiation therapy; slot antennas; tumours; λ/4 conductor sleeve; FDTD; bone cancer; bone tissue heating; electromagnetic energy leakage; electromagnetic field distribution; electromagnetic pollution; interstitial antenna; microwave hyperthermic therapy; slot antenna; subgridding mesh; tumor; Bones; Cancer; Electromagnetic fields; Electromagnetic heating; Finite difference methods; Hyperthermia; Medical treatment; Microwave antennas; Slot antennas; Time domain analysis;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2004. IEEE
Print_ISBN :
0-7803-8302-8
DOI :
10.1109/APS.2004.1330562
