Comparison of Four Microwave Ablation Devices: An Experimental Study in ex Vivo Bovine Liver

Abstract

The largest ablation zone is obtained with systems B and C (three antennas) under maximum recommended ablation duration and with system A under short ablation time. The most spherical zone is obtained with system C (three antennas).

In vitro artefact assessment of a new MR-compatible microwave antenna and a standard MR-compatible radiofrequency ablation electrode for tumour ablation

“…1). The antenna is designed for a generator that automatically modifies the output power and the MW frequency and enables an antenna power of 36 W [20]. The RF ablation device (Celon ProSurge MR 150-T30, Olympus Celon, Teltow, Germany) is commercially available and reserved for MR-guided tumour ablation.…”

Development of a Novel Switched-Mode 2.45 GHz Microwave Multiapplicator Ablation System

“…Referring to recent comparisons [31,32], it can be said that the ablations shown in Figures 14-17 represent very promising findings, even when compared to the results obtainable with other commercially available systems using cooled applicators.…”

Thermal Ablation of Lung Tumors: Focus on Microwave Ablation

“…1). This has been demonstrated by Hoffmann et al who directly compared four different MWA systems under the same conditions using an ex-vivo liver model [40]. Therefore, upon deciding in favor of a specific MWA system, one should be well informed about its performance and how it compares to the other devices on the market.…”

“…Based mainly on the tumor size, but also on other factors such as the distance to the chest wall, mediastinum or large vessels, ablation time and power should be carefully adjusted in order to produce a large enough ablation zone without doing unnecessary damage to the adjacent structures. As previously discussed, the shape and size of the ablation zone is different between the various MWA devices and depends on the power setting and duration of the ablation [40]. For each device, the relationship between ablation time/power and the size of the ablation zone is documented and made available by the manufacturer.…”