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Proceedings Paper

Tracked 3D ultrasound in radio-frequency liver ablation
Author(s): Emad M. Boctor; Gabor Fichtinger; Russell H. Taylor; Michael A. Choti
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Paper Abstract

Recent studies have shown that radio frequency (RF) ablation is a simple, safe and potentially effective treatment for selected patients with liver metastases. Despite all recent therapeutic advancements, however, intra-procedural target localization and precise and consistent placement of the tissue ablator device are still unsolved problems. Various imaging modalities, including ultrasound (US) and computed tomography (CT) have been tried as guidance modalities. Transcutaneous US imaging, due to its real-time nature, may be beneficial in many cases, but unfortunately, fails to adequately visualize the tumor in many cases. Intraoperative or laparoscopic US, on the other hand, provides improved visualization and target imaging. This paper describes a system for computer-assisted RF ablation of liver tumors, combining navigational tracking of a conventional imaging ultrasound probe to produce 3D ultrasound imaging with a tracked RF ablation device supported by a passive mechanical arm and spatially registered to the ultrasound volume.

Paper Details

Date Published: 23 May 2003
PDF: 9 pages
Proc. SPIE 5035, Medical Imaging 2003: Ultrasonic Imaging and Signal Processing, (23 May 2003); doi: 10.1117/12.479952
Show Author Affiliations
Emad M. Boctor, Johns Hopkins Univ. School of Medicine (United States)
Gabor Fichtinger, Johns Hopkins Univ. School of Medicine (United States)
Russell H. Taylor, Johns Hopkins Univ. School of Medicine (United States)
Michael A. Choti, Johns Hopkins Univ. School of Medicine (United States)


Published in SPIE Proceedings Vol. 5035:
Medical Imaging 2003: Ultrasonic Imaging and Signal Processing
William F. Walker; Michael F. Insana, Editor(s)

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