Jijo Paul MSc, PhD, Presenter: Nothing to Disclose

Emmanuel Chukwudum Mbalisike MD, Abstract Co-Author: Nothing to Disclose

Martin Beeres MD, Abstract Co-Author: Nothing to Disclose

Katrin Eichler MD, Abstract Co-Author: Nothing to Disclose

Thomas Josef Vogl MD, PhD, Abstract Co-Author: Nothing to Disclose

Stefan Zangos MD, Abstract Co-Author: Nothing to Disclose

To evaluate robotic guidance and manual approaches during microwave thermal ablation based on real-time planning, intra-procedural guidance, procedural accuracy as well as patient dose.

The study was prospectively performed between June 2013 and Feburary 2014 using 70 patients. 40 patients were treated with manual approach and the remaining 30 were treated with a semi-automatic robotic guidedapproach. Parameters evaulated were accuracy (number of readjustment, applicator active point deviation, applicator active point final position after readjustment), total procedural time (planning time, insertion time, ablation time), quantitative/qualitative image quality and patient dose (). Wilcoxon´s matched paired test and two sided student´s t-test were used to test the significance of the data and p-values < 0.05 was considered to be of statistical significance.

Accuracy parameters was significantly higher in group 2 (all p<0.05) than group 1. Total procedural time showed mean time difference of 3 mins (group 2> group 1). Volume CT dose-index, and dose-length-product were significantly lower for group 2 compared to group 1 (all p<0.05) for CT fluoroscopy imaging. Total procedural performance score was higher for group 2 compared to group 1 (p=0.0001). Image quality parameters were insignificant between examined groups.

Using the semi-automatic robotic guided approach improved accuracy of targeting the target tumor, reduce patient dose and increase procedural performance (which influences the procedural safety) is achieved during ablation.  

The robotic guided approach improved accuracy of targeting the target tumor

Paul, J, Mbalisike, E, Beeres, M, Eichler, K, Vogl, T, Zangos, S, Microwave Thermoablation of Hepatic Tumors Using a Semi-automatic Robotic Guidance Approach.  Radiological Society of North America 2014 Scientific Assembly and Annual Meeting, - ,Chicago IL. http://archive.rsna.org/2014/14003183.html