Open Science Research Excellence

Open Science Index

Commenced in January 2007 Frequency: Monthly Edition: International Publications Count: 29737

Select areas to restrict search in scientific publication database:
The Effect of Choke on the Efficiency of Coaxial Antenna for Percutaneous Microwave Coagulation Therapy for Hepatic Tumor
There are many perceived advantages of microwave ablation have driven researchers to develop innovative antennas to effectively treat deep-seated, non-resectable hepatic tumors. In this paper a coaxial antenna with a miniaturized sleeve choke has been discussed for microwave interstitial ablation therapy, in order to reduce backward heating effects irrespective of the insertion depth into the tissue. Two dimensional Finite Element Method (FEM) is used to simulate and measure the results of miniaturized sleeve choke antenna. This paper emphasizes the importance of factors that can affect simulation accuracy, which include mesh resolution, surface heating and reflection coefficient. Quarter wavelength choke effectiveness has been discussed by comparing it with the unchoked antenna with same dimensions.
Digital Object Identifier (DOI):


[1] R. Murakami, S. Yoshimatsu, Y. Yamashita, T. Matsukawa, M. Takahashi, and K. Sagara, "Treatment of hepatocellular carcinoma: value of percutaneous microwave coagulation," AJR Am J Roentgenol, vol. 164, pp. 1159-64, 1995.
[2] L. X. Liu, W. H. Zhang, and H. C. Jiang, "Current treatment for liver metastases from colorectal cancer," World J Gastroenterol, vol. 9, pp. 193-200, 2003.
[3] C. Erce and R. W. Parks, "Interstitial ablative techniques for hepatic tumours," Br J Surg, vol. 90, pp. 272-289, 2003.
[4] G. D. Dodd, M. C. Soulen, R. A. Kane, T. Livraghi, W. R. Lees, Y. Yamashita, A. R. Gillams, O. I. Karahan, and H. Rhim, "Minimally invasive treatment of malignant hepatic tumors: At the threshold of a major breakthrough," Radiographics, vol. 20, pp. 9-27, 2000
[5] Lu M-d, Chen J-w, Xie X-y, et al. Hepatocellular Carcinoma: US-guided Percutaneous Microwave Coagulation Therapy. Radiology 2001; 221(1): 167-172.
[6] Shibata T, Niinobu T, Ogata N, Takami M. Microwave coagulation therapy for multiple hepatic metastases from colorectal carcinoma. Cancer 2000; 89(2): 276-284.
[7] Su DWF, Wu LK. Input impedance characteristics of coaxial slot antennas for in-terstitial microwave hyperthermia. IEEE Trans Microwave Theory Tech. 1999; 47: 302–7.
[8] K. Saito, Y. Hayashi, H. Yoshmura, and K. Ito, "Numerical analysis of thin coaxial antennas for microwave coagulation therapy," IEEE Antennas Propagation Soc. Int. Symp., vol. 2, pp.
[9] S. L. Broschat, C.-K. Chou, K. H. Luk, A. W. Guy, and A. Ishimaru, “An insulated dipole applicator for intracavitary hyperthermia,” IEEE Trans. Biomed. Eng., vol. 35, 173-177, 1988.
[10] S. Labonte, A. Blais, S. R. Legault, H. O. Ali, and L. Roy, "Monopole antennas for microwave catheter ablation," IEEE Trans. Microwave Theory Tech, vol. 44, 1832-1840, 1996.
[11] S. Pisa, M. Cavagnaro, P. Bernardi, and J. C. Lin, "A 915-MHz antenna for microwave thermal ablation treatment: physical design, computer modeling and experimental measurement," IEEE Trans. Biomed. Eng., vol. 48, pp. 599–601, 2001.
[12] Yin XY, Xie XY, Xu HX et al “Percutaneous thermal ablation of medium and large hepatocellular carcinoma” Cancer 115:1914– 1923(2009)
[13] Martin RC, Scoggins CR, McMasters KM et al “Microwave hepatic ablation: initial experience of safety and efficacy” J Surg Oncol 96:481– 486, 2007.
[14] P. Liang, "Computer-aided dynamic simulation of microwave-induced thermal distribution in coagulation of liver cancer," IEEE Trans Biomed Eng, vol. 48, pp.821-9, 2001.
[15] Electromagnetics Module Model Library., COMSOL Multiphysics 3.4; 2009
[16] S. A. Sapareto and W. C. Dewey, “Thermal dose determination in cancer therapy,” Int. J. Radiat. Oncol. Biol. Phys., vol. 10, pp. 787–800, 1984.
[17] Clibbon KL, Mccowen A: Efficient computation of SAR distributions from interstitial microwave antenna arrays. IEEE Trans Microw Theory Tech 1994, 42:595-600.
[18] Nevels RD, Arndt GD, Raffoul GW, Carl JR, Pacifico A: Microwave catheter design. IEEE Trans Biomed Eng 1998, 45:885-890.
[19] Iginio Longo, Guido Biffi Gentili, Matteo Cerretelli, and Nevio Tosoratti JANUARY (2003): ‘A Coaxial Antenna with Miniaturized Choke for Minimally Invasive Interstitial Heating’ IEEE Transactions on Biomedical Engineering, vol. 50, no. 1, pp 82-88
[20] Saito, K., Hayashi, Y., Yoshimura, H., and Ito, K., (2000): ‘Heating characteristics of array applicator composed of two coaxial-slot antennas for microwave coagulation therapy’, IEEE Trans. Microwave Theory and Tech., 48, pp.1800–1806
[21] Haemmerich, D., Staelin, S T., Tsai, J Z., Tungjitkusolm- Un, S., Mahvi, D.M., and Webster J. G. (2003): ‘In vivo electrical conductivity of hepatic tumours,’ Physiol.meas., 24, pp.251-260
Vol:13 No:06 2019Vol:13 No:05 2019Vol:13 No:04 2019Vol:13 No:03 2019Vol:13 No:02 2019Vol:13 No:01 2019
Vol:12 No:12 2018Vol:12 No:11 2018Vol:12 No:10 2018Vol:12 No:09 2018Vol:12 No:08 2018Vol:12 No:07 2018Vol:12 No:06 2018Vol:12 No:05 2018Vol:12 No:04 2018Vol:12 No:03 2018Vol:12 No:02 2018Vol:12 No:01 2018
Vol:11 No:12 2017Vol:11 No:11 2017Vol:11 No:10 2017Vol:11 No:09 2017Vol:11 No:08 2017Vol:11 No:07 2017Vol:11 No:06 2017Vol:11 No:05 2017Vol:11 No:04 2017Vol:11 No:03 2017Vol:11 No:02 2017Vol:11 No:01 2017
Vol:10 No:12 2016Vol:10 No:11 2016Vol:10 No:10 2016Vol:10 No:09 2016Vol:10 No:08 2016Vol:10 No:07 2016Vol:10 No:06 2016Vol:10 No:05 2016Vol:10 No:04 2016Vol:10 No:03 2016Vol:10 No:02 2016Vol:10 No:01 2016
Vol:9 No:12 2015Vol:9 No:11 2015Vol:9 No:10 2015Vol:9 No:09 2015Vol:9 No:08 2015Vol:9 No:07 2015Vol:9 No:06 2015Vol:9 No:05 2015Vol:9 No:04 2015Vol:9 No:03 2015Vol:9 No:02 2015Vol:9 No:01 2015
Vol:8 No:12 2014Vol:8 No:11 2014Vol:8 No:10 2014Vol:8 No:09 2014Vol:8 No:08 2014Vol:8 No:07 2014Vol:8 No:06 2014Vol:8 No:05 2014Vol:8 No:04 2014Vol:8 No:03 2014Vol:8 No:02 2014Vol:8 No:01 2014
Vol:7 No:12 2013Vol:7 No:11 2013Vol:7 No:10 2013Vol:7 No:09 2013Vol:7 No:08 2013Vol:7 No:07 2013Vol:7 No:06 2013Vol:7 No:05 2013Vol:7 No:04 2013Vol:7 No:03 2013Vol:7 No:02 2013Vol:7 No:01 2013
Vol:6 No:12 2012Vol:6 No:11 2012Vol:6 No:10 2012Vol:6 No:09 2012Vol:6 No:08 2012Vol:6 No:07 2012Vol:6 No:06 2012Vol:6 No:05 2012Vol:6 No:04 2012Vol:6 No:03 2012Vol:6 No:02 2012Vol:6 No:01 2012
Vol:5 No:12 2011Vol:5 No:11 2011Vol:5 No:10 2011Vol:5 No:09 2011Vol:5 No:08 2011Vol:5 No:07 2011Vol:5 No:06 2011Vol:5 No:05 2011Vol:5 No:04 2011Vol:5 No:03 2011Vol:5 No:02 2011Vol:5 No:01 2011
Vol:4 No:12 2010Vol:4 No:11 2010Vol:4 No:10 2010Vol:4 No:09 2010Vol:4 No:08 2010Vol:4 No:07 2010Vol:4 No:06 2010Vol:4 No:05 2010Vol:4 No:04 2010Vol:4 No:03 2010Vol:4 No:02 2010Vol:4 No:01 2010
Vol:3 No:12 2009Vol:3 No:11 2009Vol:3 No:10 2009Vol:3 No:09 2009Vol:3 No:08 2009Vol:3 No:07 2009Vol:3 No:06 2009Vol:3 No:05 2009Vol:3 No:04 2009Vol:3 No:03 2009Vol:3 No:02 2009Vol:3 No:01 2009
Vol:2 No:12 2008Vol:2 No:11 2008Vol:2 No:10 2008Vol:2 No:09 2008Vol:2 No:08 2008Vol:2 No:07 2008Vol:2 No:06 2008Vol:2 No:05 2008Vol:2 No:04 2008Vol:2 No:03 2008Vol:2 No:02 2008Vol:2 No:01 2008
Vol:1 No:12 2007Vol:1 No:11 2007Vol:1 No:10 2007Vol:1 No:09 2007Vol:1 No:08 2007Vol:1 No:07 2007Vol:1 No:06 2007Vol:1 No:05 2007Vol:1 No:04 2007Vol:1 No:03 2007Vol:1 No:02 2007Vol:1 No:01 2007