Fig. 8

Schematic illustration demonstrating the ground-glass halo's correct disposition surrounding the treated area. a Proper disposition of the ground-glass halo after ablation lung treatment. The halo must completely surround the tumor and be greater than 5 mm, preferably between 8 and 10 mm. b–d Different forms of incomplete treatment after percutaneous pulmonary ablation as demonstrated by the disposition of the ground-glass halo