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Robotic Strain Imaging for Monitoring Thermal Ablation of Liver

By Emad M. Boctor, Gabor Fichtinger, Ambert Yeung, Michael Awad, Russell H. Taylor and Michael A. Choti


Abstract. This report describes our initial in vitro results with roboticallyassisted strain imaging for intraoperative monitoring of hepatic tumor thermal ablation. First, we demonstrate a strong correlation between thermal ablation of liver tissue and changes in elastic properties. Second, we present an experimental environment to provide controlled robotically-assisted compression of liver tissue with concurrent ultrasonic reading. Third, we present B-mode strain images of thermally treated liver samples, where the strain images corresponded to the boundaries of histologically confirmed necrosis.

Year: 2014
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