Int J CARS (2017) 12:1635–1642 DOI 10.1007/s11548-017-1544-2 ORIGINAL ARTICLE Ultrasound-navigated radiofrequency ablation of thyroid nodules with integrated electromagnetic tracking: comparison with conventional ultrasound guidance in gelatin models 1 2 2 2 Christian Erbelding · Alfred Franz · Alexander Seitel · Nasrin Bopp · 1 1 2 Konstantin Kohlhase · Frank Grünwald · Lena Maier-Hein Received: 1 December 2016 / Accepted: 20 February 2017 / Published online: 7 March 2017 © CARS 2017 Abstract Keywords Electromagnetic tracking · Ultrasonography · Purpose A thyroid-like gelatin model was used to determine Computer-assisted interventions · Radiofrequency ablation · potential superiority of a new navigation system for ultra- Gelatin phantoms · Thyroid sound (US)-guided electrode insertion called EchoTrack, featuring a US probe with an integrated electromagnetic ﬁeld generator, in comparison with conventional US when per- Abbreviations forming radiofrequency ablation. Methods In order to compare 20 navigated ablations with CT Computed tomography 20 ablations under conventional US guidance, a thyroid-like EM Electromagnetic gelatin model was used. In each group, 10 in-plane and 10 FG Field generator out-of-plane punctures were performed. Metal seeds measur- RFA Radiofrequency ablation ing 8.5 × 1.8 mm served as ablation targets. The number of US Ultrasound redirections until ﬁnal electrode placement,
International Journal of Computer Assisted Radiology and Surgery – Springer Journals
Published: Mar 7, 2017
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