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International Journal of Computer Assisted Radiology and Surgery

Erschienen in:

21.09.2016 | Original Article

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

verfasst von: L. P. Beyer, B. Pregler, K. Michalik, C. Niessen, M. Dollinger, M. Müller, H. J. Schlitt, C. Stroszczynski, P. Wiggermann

Erschienen in: International Journal of Computer Assisted Radiology and Surgery | Ausgabe 5/2017

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Abstract

Objective

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.

Methods

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.

Results

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, \(p < 0.001\); 2132 vs. 4714 mGy cm, \(p < 0.001\)). 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, \(p < 0.001\)). There were no complications. There was one incomplete ablation in the manual group.

Conclusion

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.

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Titel: Evaluation of a robotic system for irreversible electroporation (IRE) of malignant liver tumors: initial results
verfasst von: L. P. Beyer
B. Pregler
K. Michalik
C. Niessen
M. Dollinger
M. Müller
H. J. Schlitt
C. Stroszczynski
P. Wiggermann
Publikationsdatum: 21.09.2016
Verlag: Springer International Publishing
Erschienen in: International Journal of Computer Assisted Radiology and Surgery / Ausgabe 5/2017
Print ISSN: 1861-6410
Elektronische ISSN: 1861-6429
DOI: https://doi.org/10.1007/s11548-016-1485-1

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