TITLE:
Estimation of overall heat transfer coefficient of cooling system in RF capacitive hyperthermia
AUTHORS:
Seyed Ali Aghayan, Dariush Sardari, Seyed Rabii Mahdi Mahdavi, Mohammad Hasan Zahmatkesh
KEYWORDS:
Estimation; Hyperthermia; Inverse Problem; Phantom; Overall Heat Transfer Coefficient
JOURNAL NAME:
Journal of Biomedical Science and Engineering,
Vol.6 No.5,
May
22,
2013
ABSTRACT: The
study presented in this article involves the estimation of the overall heat
transfer coefficient of cooling system in RF capacitive hyperthermia
treatment using inverse problem based on the conjugate gradient method to
provide improved distribution of temperature. The temperature data computed
numerically from the direct problem using the finite difference time domain
method are used to simulate the temperature measurements. The effects of the
errors and sensor positions upon the precision of the estimated results are
also considered. The results show that a reasonable estimation of the unknown
can be obtained. Finally, measurements in a tissue-equivalent phantom are
employed to appraise the reliability of the presented method. The comparison of
computed data with measurements shows a good agreement between numerical
and experimental results.