摘要：Objective To evaluate the diagnostic value of thinsliceCT navigation combined with cytology in routinepreoperative bronchoscopy of peripheral pulmonary lesionsand compare the diagnostic effects of different cytologicalsampling methods. Methods The clinical data ofperipheral lung cancer patients with preoperative bronchoscopyand cytology sampling guided by thin-slice CTfrom May 2015 to July 2016 in Cancer Hospital,ChineseAcademy of Medical Sciences were retrospectively analyzed.The diagnostic accuracy,sensitivity and specificityof different cytological sampling methods for peripheralpulmonary lesions guided by thin-slice CT were compared,the factors affected the diagnostic sensitivity wereanalyzed,and the complications induced by these methodswere observed. Results The diagnostic sensitivity ofthin-slice CT navigation combined with bronchoalveolarlavage for peripheral pulmonary lesions was 39. 1%,andthe positive diagnosis rate was 35. 1%.

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