NDLI: Temperature dependence of thermal conductivity of liver based on various experiments and a numerical simulation for RF ablation

Content Provider	IEEE Xplore Digital Library
Author	Watanabe, H. Yamazaki, N. Kobayashi, Y. Miyashita, T. Hashizume, M. Fujie, M.G.
Copyright Year	2010
Description	Author affiliation: Faculty of Science and Engineering, Graduate School of Science and Engineering, Waseda University, Japan (Kobayashi, Y.; Miyashita, T.; Fujie, M.G.) \|\| Center for the Integration of Advanced Medicine and Innovative Technology, Kyushu University Hospital, Japan (Hashizume, M.) \|\| Graduate School of Science and Engineering, Waseda University, Japan (Watanabe, H.; Yamazaki, N.)
Abstract	Radiofrequency ablation (RFA) for liver cancer has increasingly been used over the past few years because RFA is minimally invasive treatment for patients. However, precise control of the formation of coagulation zones is difficult for operators due to inadequate imaging modalities. With this in mind, we have proposed a model-based robotic ablation system using numerical simulation to analyze temperature distributions in the organ to overcome this deficiency. The objective of our work is to develop a temperature-dependent thermophysical organ model to construct a precise numerical simulator for RFA. However, no standard methods exist for obtaining the thermophysical properties of biological tissues, as detailed evaluations of the accuracy of properties obtained from various experiments have not been completed. The purpose of this study was thus to measure and model the temperature dependence of thermal conductivity in hog liver from three representative methods, and to compare these results using our developed numerical simulator to reveal differences in temperature distributions stemming from differences in thermal conductivities.
Starting Page	3222
Ending Page	3228
File Size	1470408
Page Count	7
File Format	PDF
ISBN	9781424441235
ISSN	1557170X
DOI	10.1109/IEMBS.2010.5627200
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-08-31
Publisher Place	Argentina
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Liver Conductivity Thermal conductivity Temperature measurement Heating Mathematical model Temperature sensors
Content Type	Text
Resource Type	Article
Subject	Signal Processing Biomedical Engineering Health Informatics Computer Vision and Pattern Recognition

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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