Laparoscopic microwave thermosphere ablation of XXXX : an initial clinical evaluation.

@entity1 @entity5 @entity96
BACKGROUND: Microwave ablation (MWA) has been recently recognized as a technology to overcome the limitations of radiofrequency ablation. The aim of the current study was to evaluate the safety and efficacy of a new 2.45-GHz thermosphere MWA system in the treatment of @entity96 . METHODS: This was a prospective IRB-approved study of 18 @entity1 with @entity96 treated with MWA within a 3-month time period. @entity5 sizes and response to MWA were obtained from triphasic liver CT scans done before and after MWA. The ablation zones were assessed for complete @entity5 response and spherical geometry. RESULTS: There were a total of 18 @entity1 with an average of three @entity5 measuring 1.4  cm (range 0.2-4). Ablations were performed laparoscopically in all, but three @entity1 who underwent combined liver resection. A single ablation was created in 72  % and overlapping ablations in 28  % of lesions. Total ablation time per @entity1 was 15.6      1.9  min. There was no morbidity or mortality. At 2-week CT scans, there was 100  % @entity5 destruction, with no residual lesions. Roundness indices A, B and transverse were 1.1, 0.9 and 0.9, respectively, confirming the spherical nature of ablation zones. CONCLUSIONS: To the best of  our knowledge, this is the first report of a new thermosphere MWA technology in the laparoscopic treatment of @entity96 . The results demonstrate the safety of the technology, with satisfactory spherical ablation zones seen on post-procedural CT scans.
