Clinical Study Of CT Assisted Body Surface Localization Combined With Intraoperative Localization In Thoracoscopic Pulmonary Nodule Resection

Objective: To explore the clinical value of CT assisted body surface localization combined with intraoperative stereoanatomical localization in thoracoscopic pulmonary nodule resection.Methods: We collected the clinical data of 120 patients admitted to and surgical resection by the thoracic surgery department of the First Affiliated Hospital of Bengbu Medical College from January 2020 to January 2022.These included 30CT-assisted body surface localization combined with intraoperative stereoanatomical localization,30 CT-assisted body surface localization,30 intraoperative stereoanatomical localization and 30 percutaneous microcoil localization under CT guidance.The success rate of the four localization methods,localization complications and localization time were counted.To evaluate the effect of CT assisted body surface localization combined with intraoperative stereoanatomical localization.Results: CT assisted body surface localization combined with intraoperative stereoanatomical localization group and the percutaneous microcoil localization group under CT guidance had the highest success rate among the four positioning methods,at 96.7%,which was higher than 70.0% of CT assisted body surface localization group,with a statistically significant difference（P<0.05）.The complication rate in the combination of CT assisted body surface localization combined with intraoperative stereoanatomical localization group was 0,which was lower than 60% of the percutaneous microcoil localization group under CT guidance,which was significant（P<0.05）.The time of CT assisted body surface localization combined with intraoperative stereoanatomical localization group was（17.73±2.52）min,which was less than the（27.27±7.61）min of the percutaneous microcoil localization group under CT guidance.The difference was statistically significant（P<0.05）.Conclusion: 1.CT assisted body surface localization combined with intraoperative stereoanatomical localization is a non-invasive accurate,safe and reliable lung nodules localization method.2.CT assisted body surface localization combined with intraoperative stereoanatomical localization can avoid complications such as pneumothorax,active bleeding and pain caused by traditional CT-guided localization method of percutaneous puncture placement of markers.3.CT assisted body surface localization combined with intraoperative stereoanatomical localization has a small amount of radiation and is economical and practical than the percutaneous microcoil localization under CT guidance,and can be further promoted and applied in clinical practice.