CT Guided Placement of the End of the Microcoil in the Pleural Cavity: A More Helpful Method for Video-Assisted Thoracic Surgery (VATS) Resection of Ground Glass Opacity (GGO)

Objective: To investigate and summarize the effectiveness and safety of CT guided microcoil localization before video-assisted thoracic surgery (VATS) for the removal of ground glass opacity (GGO). Method: 147 patients with GGO who were treated in our hospital from January 2019 to February 2021 were retrospectively analyzed. They were divided into two groups according to the final position of the end of the microcoil, intracavity group (n=78) and extracavity group (n=69). Comparison of the two groups of patients with puncture complications, and the influence of the end position of the coil for VATS. Results: The proportion of supine and prone position in the intracavity group was significantly higher than that in the extracavity group (82.1% vs. 66.7%, P<0.05). The incidence of intrapulmonary hemorrhage, chest pain and coil displacement in the intracavitary group was significantly lower than that in the extracavitary group (28.2% vs. 46.4%; 19.2% vs. 39.1%;1.3% vs. 11.6%, P0.05). The time of VATS and the rate of conversion to thoracotomy in the intracavity group were significantly lower than those in the extracavity group (103.4±21.0min vs. 112.2±17.3min, 0% vs. 5.8%, P<0.05). Conclusion: CT-guided placement of the microcoil was a very practical, simple and convenient localization method before VATS with high success rate and few complications, further more, it was a better method to place the end of the coil in the pleural cavity because of the lower complication rate, shorter VATS time and lower rate of thoracotomy conversion.