Evaluation of a robotic system for irreversible electroporation (IRE) of malignant liver tumors: initial results

Beyer, L. P. and Pregler, B. and Michalik, K. and Niessen, C. and Dollinger, M. and Mueller, M. and Schlitt, H. J. and Stroszczynski, C. and Wiggermann, P. (2017) Evaluation of a robotic system for irreversible electroporation (IRE) of malignant liver tumors: initial results. INTERNATIONAL JOURNAL OF COMPUTER ASSISTED RADIOLOGY AND SURGERY, 12 (5). pp. 803-809. ISSN 1861-6410, 1861-6429

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Abstract

Comparison of conventional CT-guided manual irreversible electroporation (IRE) of malignant liver tumors and a robot-assisted approach regarding procedural accuracy, intervention time, dose, complications, and treatment success. A retrospective single-center analysis of 40 cases of irreversible electroporation of malignant liver tumors in 35 patients (6 females, 29 males, average age 60.3 years). Nineteen of these ablation procedures were performed manually and 21 with robotic assistance. A follow-up (ultrasound, CT, and MRI) was performed after 6 weeks in all patients. The time from the planning CT scan to the start of the ablation as well as the dose-length product were significantly lower under robotic assistance (63.5 vs. 87.4 min, ; 2132 vs. 4714 mGy cm, ). The procedural accuracy, measured as the deviation of the IRE probes with respect to a defined reference probe, was significantly higher using robotic guidance (2.2 vs. 3.1 mm, ). There were no complications. There was one incomplete ablation in the manual group. Robotic assistance for IRE of liver tumors allows for faster procedure times with higher accuracy while reducing radiation dose as compared to the manual placement of IRE probes.

Item Type: Article
Uncontrolled Keywords: TISSUE ABLATION; CARCINOMA; METASTASES; THERAPY; Interventional radiology; Robotic assistance; Irreversible electroporation; Liver tumor; CT-guided
Subjects: 600 Technology > 610 Medical sciences Medicine
Divisions: Medicine > Lehrstuhl für Chirurgie
Medicine > Lehrstuhl für Innere Medizin I
Medicine > Lehrstuhl für Strahlentherapie
Depositing User: Dr. Gernot Deinzer
Date Deposited: 14 Dec 2018 13:10
Last Modified: 18 Feb 2019 12:56
URI: https://pred.uni-regensburg.de/id/eprint/843

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