A new interstitial choke embedded antenna for microwave ablation

Takahiro Wakaki; Tetsuyuki Michiyama; Shuzo Kuwano

doi:10.1587/comex.2017XBL0048

This article has now been updated. Please use the final version.

A new interstitial choke embedded antenna for microwave ablation

Takahiro Wakaki, Tetsuyuki Michiyama, Shuzo Kuwano

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Keywords: ablation, interstitial coaxial antenna, non-catheter type, choke, microwave heating

JOURNAL FREE ACCESS Advance online publication

Article ID: 2017XBL0048

DOI https://doi.org/10.1587/comex.2017XBL0048

The final version of this article is now available: Vol. 6 (2017), No. 7 pp. 435-438

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Abstract

We propose an interstitial coaxial antenna with a choke embedded in the outer conductor and with an arrowhead cap for microwave ablation therapy, operating at 2.45 GHz. The cap consists of ceramic and conductor. The heating is suppressed along both the direction in the tip side and the feeding side of the antenna because of the cap and the choke. In addition, a catheter is not required. We numerically clarify these advantages by analyzing the temperature distribution of a spherical breast tumor.

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