The application of CT guided localization of small pulmonary nodules before pulmonary wedge resection by using micro-coils

ZHANG Jian; WANG Zhongpu; CUI Jian; HUANG Yuqing

Abstract：Objective To investigate the clinical application of CT guided localization by implanting microcoils before small pulmonary nodules wedge resection .Methods 12 cases of patients with small pulmonary nodules was conducted fine needle aspi -ration with CT scanning , adopted “two steps to release”, to release the little part of microcoil around the lesions within 5 mm, to retain the part of the microcoil in surface of visceral pleura , to determine the scope of the resected lung tissue surrounding nodules according to the position of small pulmonary nodules and microcoils .And in vitro tissue is rapidly frozen for histological observa-tion behind thoracoscopic pulmonary wedge resection .To continue expanding the operation or end clinical treatment according to malignant or benign lesions .Results CT scanning of 12 cases with small pulmonary nodules can clearly show lesions .Preopera-tive localization is successful by implanting microcoils .And the patients received thoracoscopic wedge resection , All of them un-derwent the operation successfully without severe complications and perioperative death , The postoperative pathological diagnosis included primary pulmonary carcinoma (n=4, 33.3%), atypical adenomatous hyperplasia (n=2, 16.7%), hamartoma (n=1, 8.3%), inflammatory lesions (n=5,41.7%).Conclusion CT guided localization by using microcoils before small pulmo-nary nodules wedge resection is safe and effective .It can help thoracic surgeons and pathologists find lesions quickly and accurate-ly to guide clinical treatment .