Journal: Journal of Thoracic Disease

Article Title: CT-guided percutaneous microwave ablation of pulmonary malignant tumors

doi: 10.21037/jtd.2016.09.44

Figure Lengend Snippet: MedWaves microwave ablation system consisting of (A) generator (Avecure MWG881, Medwaves, San Diego, CA, USA); (B) 14G antenna probe (Avecure 14-15-LH-35, Medwaves, San Diego, CA, USA).

Article Snippet: After completing MWA of the targeted lesion, an immediate CT scan was performed to determinate the efficacy of MWA if the tumor was surrounded by a halo of ground glass opacity (GGO) indicating the margin of tumor ablation zone ( 14 ) ( ) and to find out whether any WMA-related complications such as pneumothorax, pulmonary hemorrhage or any other soft tissue injury occurred. fig ft0 fig mode=article f1 fig/graphic|fig/alternatives/graphic mode="anchored" m1 Open in a separate window caption a7 MedWaves microwave ablation system consisting of (A) generator (Avecure MWG881, Medwaves, San Diego, CA, USA); (B) 14G antenna probe (Avecure 14-15-LH-35, Medwaves, San Diego, CA, USA). fig ft0 fig mode=article f1 fig/graphic|fig/alternatives/graphic mode="anchored" m1 Open in a separate window caption a7 Image feature of the halo ground glass opacity. (A) A 46-year-old woman with colorectal cancer has a new solid 5 mm metastatic tumor at the posterior aspect of the right upper lobe (arrow) before MWA; (B) the antenna is placed through the center of the targeted nodule and shows a surrounding halo ground glass opacity during the procedure; (C) after removal of the antenna, there is an apparent hypodense track inside the tumor in addition to the halo; (D) follow up non-contrast CT one year after MWA shows focal fibrosis and disappearance of the metastatic nodule, indicating complete tumor ablation.

Techniques: