A Case of Hepatocellular Carcinoma Treated by MR-guided Focused Ultrasound Ablation with Respiratory Gating

Atsuya OKADA; Takamichi MURAKAMI; Koji MIKAMI; Hiromitsu ONISHI; Noboru TANIGAWA; Taro MARUKAWA; Hironobu NAKAMURA

doi:10.2463/mrms.5.167

Case Report

A Case of Hepatocellular Carcinoma Treated by MR-guided Focused Ultrasound Ablation with Respiratory Gating

Atsuya OKADA, Takamichi MURAKAMI, Koji MIKAMI, Hiromitsu ONISHI, Noboru TANIGAWA, Taro MARUKAWA, Hironobu NAKAMURA

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Keywords: liver tumor, MRI, focused ultrasound surgery, interventional radiology, respiratory monitoring

JOURNAL OPEN ACCESS

2006 Volume 5 Issue 3 Pages 167-171

DOI https://doi.org/10.2463/mrms.5.167

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Abstract

Focused ultrasound surgery (FUS) is a method of noninvasive focal thermal ablation. Temperature-sensitive phase-difference magnetic resonance (MR) imaging allows monitoring of the focal point and measurement of tissue temperature elevation in real time, ensuring delivery of a therapeutic dose. A newly developed respiratory monitoring system enables us to track liver tumors, which move with respiration. We report our initial experience using MR-guided FUS with respiratory gating in successfully treating a hepatocellular carcinoma 15 mm in diameter.

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