NDLI: Estimation of intraoperative blood flow during liver RF ablation using a finite element method-based biomechanical simulation

Content Provider	IEEE Xplore Digital Library
Author	Watanabe, H. Yamazaki, N. Kobayashi, Y. Miyashita, T. Ohdaira, T. Hashizume, M. Fujie, M.G.
Copyright Year	2011
Description	Author affiliation: Graduate School of Science and Engineering, Waseda University, Japan. (59-309, 3-4-1 Okubo, Shinjuku Ward, Tokyo, Japan (Watanabe, H.; Yamazaki, N.) \|\| 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.)
Abstract	Radiofrequency ablation is increasingly being used for liver cancer because it is a minimally invasive treatment method. However, it is difficult for the operators to precisely control the formation of coagulation zones because of the cooling effect of capillary vessels. To overcome this limitation, we have proposed a model-based robotic ablation system using a real-time numerical simulation to analyze temperature distributions in the target organ. This robot can determine the adequate amount of electric power supplied to the organ based on real-time temperature information reflecting the cooling effect provided by the simulator. The objective of this study was to develop a method to estimate the intraoperative rate of blood flow in the target organ to determine temperature distribution. In this paper, we propose a simulation-based method to estimate the rate of blood flow. We also performed an in vitro study to validate the proposed method by estimating the rate of blood flow in a hog liver. The experimental results revealed that the proposed method can be used to estimate the rate of blood flow in an organ.
Starting Page	7441
Ending Page	7445
File Size	1009081
Page Count	5
File Format	PDF
ISBN	9781424441211
ISSN	1557170X
e-ISBN	9781457715891
e-ISBN	9781424441228
DOI	10.1109/IEMBS.2011.6091745
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-08-30
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Blood flow Liver Needles Temperature measurement Heating Radio frequency Temperature distribution
Content Type	Text
Resource Type	Article
Subject	Signal Processing Biomedical Engineering Health Informatics Computer Vision and Pattern Recognition

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Method for estimating the temperature distribution associated with the vessel cooling effect in radio frequency ablation

Real-time temperature control system based on the finite element method for liver radiofrequency ablation: Effect of the time interval on control

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Derivation of the relationship between the rate of temperature rise and viscoelasticity for constructing a coagulation model for liver radio frequency ablation

Estimation of intraoperative blood flow during liver RF ablation using a finite element method-based biomechanical simulation

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