Local Tumor Progression after Radiofrequency Ablation of Colorectal Liver Metastases: Evaluation of Ablative Margin and Three-Dimensional Volumetric Analysis

Three-dimensional volumetric analysis of postablation coagulation volume is feasible for detection of LTP after RF ablation of colorectal cancer liver metastases. No advantage in early detection of LTP was found for 3D volumetric analysis compared with conventional morphologic criteria in this preliminary study. These findings may reflect a type II error caused by the limited sample size.