Percutaneous Cryoablation of Metastatic Lesions from Colorectal Cancer: Efficacy and Feasibility with Survival and Cost-Effectiveness Observations
Figure 3
76-year-old male presenting with an FDG-PET positive recurrent lesion (a) from a cryoablation procedure 5 months prior. The caudate mass lies just anterior to the IVC and measures cm (b). In order to avoid damaging the adjacent bowel, an 18-gauge Trocar needle was placed along the anterior/superior margin of the tumor, allowing for the injection of saline to provide hydrodissection protection. A total of three 2.4 mm cryoprobes bracketed the tumor, two of which abutted the IVC. Following a two, ten-minute freeze cycles ((c) and (d)), the ablation zone was visualized to extend beyond all tumor margins and produced final ice measurements of cm. No new local recurrence was noted in subsequent follow-up imaging.
