title: Chest computed tomography (CT) immediately after CT-guided transthoracic needle aspiration biopsy as a predictor of overt pneumothorax.
abstract: OBJECTIVE
  This study examined the correlation between pneumothorax detected by immediate post-transthoracic needle aspiration-biopsy (TTNB) chest computed tomography (CT) and overt pneumothorax detected by chest PA, and investigated factors that might influence the correlation.
  
  
  METHODS
  Adult patients who had undergone CT-guided TTNB for lung lesions from May 2003 to June 2007 at Seoul National University Bundang Hospital were included. Immediate post-TTNB CT and chest PA follow-up at 4 and 16 hours after CT-guided TTNB were performed in 934 patients.
  
  
  RESULTS
  Pneumothorax detected by immediate chest CT (CT-pneumothorax) was found in 237 (25%) and overt pneumothorax was detected by chest PA follow-up in 92 (38.8%) of the 237 patients. However, overt pneumothorax was found in 18 (2.6%) of the 697 patients without CT-pneumothorax. The width and depth of CT-pneumothorax were predictive risk factors for overt pneumothorax.
  
  
  CONCLUSIONS
  CT-pneumothorax is very sensitive for predicting overt pneumothorax, and the width and depth on CT-pneumothorax are reliable risk factors for predicting overt pneumothorax.
authors: Division of Pulmonology and Critical Care Medicine, Department of Internal Medicine and Lung Institute, Seoul National University College of Medicine, Seoul, Korea.
authors: Tae June
authors: TJ
authors: Noh
authors: Chang Hoon
authors: CH
authors: Lee
authors: Young Ae
authors: YA
authors: Kang
authors: Sung-Youn
authors: SY
authors: Kwon
authors: Ho-Il
authors: HI
authors: Yoon
authors: Tae Jung
authors: TJ
authors: Kim
authors: Kyung Won
authors: KW
authors: Lee
authors: Jae Ho
authors: JH
authors: Lee
authors: Choon-Taek
authors: CT
authors: Lee
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001707:Biopsy, Needle / Q000009:adverse effects*; D005260:Female; D006801:Humans; D015994:Incidence; D008297:Male; D008875:Middle Aged; D011030:Pneumothorax / Q000000981:diagnostic imaging* / Q000453:epidemiology; D013902:Radiography, Thoracic / Q000379:methods*; D012189:Retrospective Studies; D013909:Thorax / Q000473:pathology*; D014057:Tomography, X-Ray Computed / Q000379:methods*