Chest computed tomography (CT) immediately after CT-guided transthoracic needle aspiration biopsy as a predictor of overt pneumothorax

Tae June Noh, Chang Hoon Lee, Young Ae Kang, Sung Youn Kwon, Ho Il Yoon, Tae Jung Kim, Kyung Won Lee, Jae Ho Lee, Choon Taek Lee

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Background/Aims: 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 CTpneumothorax are reliable risk factors for predicting overt pneumothorax.

Original languageEnglish
Pages (from-to)343-349
Number of pages7
JournalKorean Journal of Internal Medicine
Issue number4
Publication statusPublished - 2009 Dec 21


All Science Journal Classification (ASJC) codes

  • Internal Medicine

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