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case_images: Process of CT-electromagnetic navigation system guided percutaneous laser ablation. (A) The size of the pulmonary nodule was measured at 8.5mmx6.1mm in March (red arrow). (B) The size of the pulmonary nodule was measured at 18mmx19mm in September (red arrow). (C) Image of electromagnetic navigation system equipment. (D) Representative images of the puncture process guided by CT electromagnetic navigation system. (E) Image of successful positioning of the puncture sheath to the tumor site.
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case_images: During the regular medical examination in March 2023, the size of the pulmonary nodule was measured to be 8.5mmx6.1mm ( Figure 1 ). Figures 1A, B ). Full communication with the patient about the condition and feasible diagnostic and therapeutic options. After that, the puncture sheath was guided to the lesion site using electromagnetic navigation ( Figures 1C-E ).
case_images: Representative Images in Laser Ablation Process. (A-C) Representative images of fiber optic positioning within tumor tissue during the ablation process. (D) Representative CT image of the tumor site after laser ablation.
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case_images: Intraoperative chest CT scanning was performed to confirm the placement of the catheter at the tumor site, followed by the insertion of a 980nm wavelength semiconductor laser fiber into the appropriate position ( Figures 2A-C ). After ablation, a cavity can be observed at the center of the lesion on CT scan, with ground-glass opacities visible around it ( Figure 2D ).
case_images: Representative images of PET-CT examination one-month post-surgery. there was no significant increase in metabolism in solid nodules in the upper lobe of the right lung.
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case_images: The results showed that there was no significant increase in metabolism in the solid nodules in the upper lobe of the right lung, and no malignant changes were considered, suggesting complete ablation of the tumor ( Figure 3 ).