<abstract xmlns="http://www.w3.org/1999/xhtml"><sec id="j_raon-2020-0033_s_005_w2aab3b7c33b1b6b1aab1c16b1Aa"><h3>Background</h3><p>The aim of the study was to assess the primary efficacy of robot-assisted microwave ablation and compare it to manually guided microwave ablation for percutaneous ablation of liver malignancies.</p></sec><sec id="j_raon-2020-0033_s_006_w2aab3b7c33b1b6b1aab1c16b2Aa"><h3>Patients and methods</h3><p>We performed a retrospective single center evaluation of microwave ablations of 368 liver tumors in 192 patients (36 female, 156 male, mean age 63 years). One hundred and nineteen ablations were performed between 08/2011 and 03/2014 with manual guidance, whereas 249 ablations were performed between 04/2014 and 11/2018 using robotic guidance. A 6-week follow-up (ultrasound, computed tomography and magnetic resonance imaging) was performed on all patients.</p></sec><sec id="j_raon-2020-0033_s_007_w2aab3b7c33b1b6b1aab1c16b3Aa"><h3>Results</h3><p>The primary technique efficacy outcome of the group treated by robotic guidance was significantly higher than that of the manually guided group (88% <italic>vs</italic>. 76%; p = 0.013). Multiple logistic regression analysis indicated that a small tumor size (≤ 3 cm) and robotic guidance were significant favorable prognostic factors for complete ablation.</p></sec><sec id="j_raon-2020-0033_s_008_w2aab3b7c33b1b6b1aab1c16b4Aa"><h3>Conclusions</h3><p>In addition to a small tumor size, robotic navigation was a major positive prognostic factor for primary technique efficacy.</p></sec></abstract>

BackgroundThe aim of the study was to assess the primary efficacy of robot-assisted microwave ablation and compare it to manually guided microwave ablation for percutaneous ablation of liver malignancies.Patients and methodsWe performed a retrospective single center evaluation of microwave ablations of 368 liver tumors in 192 patients (36 female, 156 male, mean age 63 years). One hundred and nineteen ablations were performed between 08/2011 and 03/2014 with manual guidance, whereas 249 ablations were performed between 04/2014 and 11/2018 using robotic guidance. A 6-week follow-up (ultrasound, computed tomography and magnetic resonance imaging) was performed on all patients.ResultsThe primary technique efficacy outcome of the group treated by robotic guidance was significantly higher than that of the manually guided group (88% vs. 76%; p = 0.013). Multiple logistic regression analysis indicated that a small tumor size (≤ 3 cm) and robotic guidance were significant favorable prognostic factors for complete ablation.ConclusionsIn addition to a small tumor size, robotic navigation was a major positive prognostic factor for primary technique efficacy.

Improvement of the primary efficacy of microwave ablation of malignant liver tumors by using a robotic navigation system

Radiology and Oncology

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

BackgroundThe aim of the study was to assess the primary efficacy of robot-assisted microwave ablation and compare it to manually guided microwave ablation for...

Improvement of the primary efficacy of microwave ablation of malignant liver tumors by using a robotic navigation system

Article Category: Research Article

Published Online: May 28, 2020

Page range: 295 - 300

Received: Feb 17, 2020

Accepted: May 03, 2020

DOI: https://doi.org/10.2478/raon-2020-0033

© 2020 Jan Schaible, Benedikt Pregler, Niklas Verloh, Ingo Einspieler, Wolf Bäumler, Florian Zeman, Andreas Schreyer, Christian Stroszczynski, Lukas Beyer, published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.