title: Factors determining successful computed tomography-guided localization of lung nodules.
abstract: OBJECTIVE
  To investigate the factors related to the successful computed tomography-guided nodule localization for subsequent nodule excision.
  
  
  METHODS
  We retrospectively reviewed the medical records for 181 patients who had undergone computed tomography-guided nodule localization using hook wire and subsequent video-assisted thoracic surgery resection for lung nodules. The demographic factors, nodule factors, and technical factors were reviewed to determine what affects effective nodule localization for video-assisted thoracic surgery resection using both univariate and multivariate models.
  
  
  RESULTS
  A total of 174 patients were included in our study. Successful localization was accomplished in 166 patients (95%). Univariate analysis implicated patient age, nodule solidity, zonal location, and a sufficient distance between the hook wire tip and pleural surface as significant factors for successful localization. Multivariate analysis focused on the distance between the wire tip and pleural surface as the sole independent factor for successful localization (P = .012).
  
  
  CONCLUSIONS
  The distance between the hook wire tip and pleural surface was the major significant factor for successful computed tomography-guided nodule localization for subsequent video-assisted thoracic surgery resection. Thus, the localization of a hook wire adjacent to a target nodule with sufficient depth from the pleural surface is crucial to the success of the procedure.
authors: Department of Radiology and Center for Imaging Science, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea.
authors: Jung Min
authors: JM
authors: Seo
authors: Ho Yun
authors: HY
authors: Lee
authors: Hong Kwan
authors: HK
authors: Kim
authors: Yong Soo
authors: YS
authors: Choi
authors: Jhingook
authors: J
authors: Kim
authors: Young Mog
authors: YM
authors: Shim
authors: Kyung Soo
authors: KS
authors: Lee
mesh_terms: D000368:Aged; D001706:Biopsy; D005260:Female; D006801:Humans; D016014:Linear Models; D008175:Lung Neoplasms / Q000000981:diagnostic imaging* / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D055613:Multiple Pulmonary Nodules / Q000000981:diagnostic imaging* / Q000601:surgery*; D015999:Multivariate Analysis; D011237:Predictive Value of Tests; D015641:Radiography, Interventional / Q000379:methods*; D056910:Republic of Korea; D012189:Retrospective Studies; D018570:Risk Assessment; D012307:Risk Factors; D003074:Solitary Pulmonary Nodule / Q000000981:diagnostic imaging* / Q000601:surgery*; D020775:Thoracic Surgery, Video-Assisted; D014057:Tomography, X-Ray Computed