IEICE TRANSACTIONS on Electronics
Temperature Analysis of Liver Tissue in Microwave Coagulation Therapy Considering Tissue Dehydration by Heating
Summary :
In this study, to obtain a more accurate analysis of the temperature in microwave coagulation therapy (MCT) for liver cancer, the water content ratios of dehydrated liver tissue and the dependencies of the dielectric and thermal constants of the tissue on the water content ratios were investigated in tissue heated at 2.45GHz. Swine liver tissues were heated and dehydrated under various conditions, and the water content ratios and dielectric and thermal constants were measured. The results indicated that the water content ratio of the tissue depended on the heating temperature and that the dielectric constants (relative permittivity and electrical conductivity) and thermal constants (specific heat and thermal conductivity) of the dehydrated tissues strongly depended on the water content ratio. Based on these results, numerical analyses of the electromagnetic field and temperature inside the liver tissue heated with a coaxial-slot antenna were conducted. Incorporating information on the water content ratio improved the accuracy of temperature calculations in MCT.
- Publication
- IEICE TRANSACTIONS on Electronics Vol.E99-C No.2 pp.257-265
- Publication Date
- 2016/02/01
- Publicized
- Online ISSN
- 1745-1353
- DOI
- 10.1587/transele.E99.C.257
- Type of Manuscript
- PAPER
- Category
- Electromagnetic Theory
Authors
Yuta ENDO
Chiba University
Kazuyuki SAITO
Chiba University
Koichi ITO
Chiba University
Keyword
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Yuta ENDO, Kazuyuki SAITO, Koichi ITO, "Temperature Analysis of Liver Tissue in Microwave Coagulation Therapy Considering Tissue Dehydration by Heating" in IEICE TRANSACTIONS on Electronics,
vol. E99-C, no. 2, pp. 257-265, February 2016, doi: 10.1587/transele.E99.C.257.
Abstract: In this study, to obtain a more accurate analysis of the temperature in microwave coagulation therapy (MCT) for liver cancer, the water content ratios of dehydrated liver tissue and the dependencies of the dielectric and thermal constants of the tissue on the water content ratios were investigated in tissue heated at 2.45GHz. Swine liver tissues were heated and dehydrated under various conditions, and the water content ratios and dielectric and thermal constants were measured. The results indicated that the water content ratio of the tissue depended on the heating temperature and that the dielectric constants (relative permittivity and electrical conductivity) and thermal constants (specific heat and thermal conductivity) of the dehydrated tissues strongly depended on the water content ratio. Based on these results, numerical analyses of the electromagnetic field and temperature inside the liver tissue heated with a coaxial-slot antenna were conducted. Incorporating information on the water content ratio improved the accuracy of temperature calculations in MCT.
URL: https://global.ieice.org/en_transactions/electronics/10.1587/transele.E99.C.257/_p
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@ARTICLE{e99-c_2_257,
author={Yuta ENDO, Kazuyuki SAITO, Koichi ITO, },
journal={IEICE TRANSACTIONS on Electronics},
title={Temperature Analysis of Liver Tissue in Microwave Coagulation Therapy Considering Tissue Dehydration by Heating},
year={2016},
volume={E99-C},
number={2},
pages={257-265},
abstract={In this study, to obtain a more accurate analysis of the temperature in microwave coagulation therapy (MCT) for liver cancer, the water content ratios of dehydrated liver tissue and the dependencies of the dielectric and thermal constants of the tissue on the water content ratios were investigated in tissue heated at 2.45GHz. Swine liver tissues were heated and dehydrated under various conditions, and the water content ratios and dielectric and thermal constants were measured. The results indicated that the water content ratio of the tissue depended on the heating temperature and that the dielectric constants (relative permittivity and electrical conductivity) and thermal constants (specific heat and thermal conductivity) of the dehydrated tissues strongly depended on the water content ratio. Based on these results, numerical analyses of the electromagnetic field and temperature inside the liver tissue heated with a coaxial-slot antenna were conducted. Incorporating information on the water content ratio improved the accuracy of temperature calculations in MCT.},
keywords={},
doi={10.1587/transele.E99.C.257},
ISSN={1745-1353},
month={February},}
Copy
TY - JOUR
TI - Temperature Analysis of Liver Tissue in Microwave Coagulation Therapy Considering Tissue Dehydration by Heating
T2 - IEICE TRANSACTIONS on Electronics
SP - 257
EP - 265
AU - Yuta ENDO
AU - Kazuyuki SAITO
AU - Koichi ITO
PY - 2016
DO - 10.1587/transele.E99.C.257
JO - IEICE TRANSACTIONS on Electronics
SN - 1745-1353
VL - E99-C
IS - 2
JA - IEICE TRANSACTIONS on Electronics
Y1 - February 2016
AB - In this study, to obtain a more accurate analysis of the temperature in microwave coagulation therapy (MCT) for liver cancer, the water content ratios of dehydrated liver tissue and the dependencies of the dielectric and thermal constants of the tissue on the water content ratios were investigated in tissue heated at 2.45GHz. Swine liver tissues were heated and dehydrated under various conditions, and the water content ratios and dielectric and thermal constants were measured. The results indicated that the water content ratio of the tissue depended on the heating temperature and that the dielectric constants (relative permittivity and electrical conductivity) and thermal constants (specific heat and thermal conductivity) of the dehydrated tissues strongly depended on the water content ratio. Based on these results, numerical analyses of the electromagnetic field and temperature inside the liver tissue heated with a coaxial-slot antenna were conducted. Incorporating information on the water content ratio improved the accuracy of temperature calculations in MCT.
ER -
English
