Heating properties of re-entrant resonant cavity applicator for brain tumor with simple head model.
We have already confirmed the effectiveness of the re-entrant resonant cavity applicator system with non-invasive experiments of heating cylindrical agar phantoms and computer simulations. This paper discusses the heating properties of the developed heating system with a human head model made of agar for brain tumor hyperthermia treatment. First, we present the results of heating a uniform agar head model with the developed heating system. In the experiments, the temperature rise at the center of the agar was about 8 degrees C, it was found that the center of the agar is heated to maximum temperature non-invasively. Second, we present the results of heating a non-uniform agar head model having an oral cavity and a nasal cavity. We found that the center of the agar can be heated to maximum temperature as well as uniform agar head model. From these results, it is confirmed that the possibility of effective hyperthermia for various types of deep-seated brain tumors.
Hirashima
T
T
Department of Mechanical Engineering Informatics, Meiji University, Kawasaki, Japan.
Kato
K
K
Shindo
Y
Y
Iwazaki
R
R
Yabuhara
T
T
Uzuka
T
T
Takahashi
H
H
Fujii
Y
Y
D001831:Body Temperature / Q000528:radiation effects; D001921:Brain / Q000503:physiopathology* / Q000528:radiation effects*; D001932:Brain Neoplasms / Q000503:physiopathology* / Q000628:therapy*; D017115:Catheter Ablation / Q000295:instrumentation / Q000379:methods*; D003198:Computer Simulation; D004307:Dose-Response Relationship, Radiation; D004867:Equipment Design; D019544:Equipment Failure Analysis; D006979:Hyperthermia, Induced / Q000295:instrumentation / Q000379:methods*; D008954:Models, Biological; D011829:Radiation Dosage; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D014159:Transducers