Efficacy and safety of computed tomography-guided microwave ablation with fine needle-assisted puncture positioning technique for hepatocellular carcinoma

Figure 2 Fine needle-assisted puncture positioning technique in computed tomography-guided microwave ablation. A: The patient was trained to hold his breath, and then a 21-gauge fine needle was inserted near the tumor nodules; B: A microwave electrode needle was gradually inserted inside the tumor according to the mark of the fine needle while the fine needle served as a breathing indicator; C: The fine needle was pulled out after the electrode needle, consistent with the plan confirmed by computed tomography scanning.