Computer Guided Microwave Liver Ablation

The goal of this clinical trial is to learn if the intraoperative use of a computer guidance software can improve the success of liver tumor ablation in adults. The employed software calculates and displays a simulation of the ablation such that the physician can visualize what portion of the target tumor has, and has not been treated at any point during the procedure. The main questions it aims to answer are: 1) Does the use of the computer guidance software reduce the number of times a tumor is incompletely treated. 2) Does the use of the computer guidance software reduce the rate of local tumor recurrence at 2 year follow-up? 3) Was there an increase or a decrease in medical problems for participants after a procedure where the guidance software was used? Researchers will compare liver tumor treatment using the computer guidance software with an historic control to see if the addition of the guidance software improved the outcomes after an ablation. Participants will: Undergo CT-guided microwave ablation treatment of a liver tumor using computer-assisted simulation. Visit the clinic at one month and then every 3 months for blood tests and a contrast-enhanced CT or MRI imaging study (as per standard of care)