PT - JOURNAL ARTICLE AU - Y-C. Chang AU - C-J. Yu AU - W-J. Lee AU - S-H. Kuo AU - C-H. Hsiao AU - I-S. Jan AU - F-C. Hu AU - H-M. Liu AU - W-K. Chan AU - P-C. Yang TI - Imprint cytology improves accuracy of computed tomography-guided percutaneous transthoracic needle biopsy AID - 10.1183/09031936.00038907 DP - 2008 Jan 01 TA - European Respiratory Journal PG - 54--61 VI - 31 IP - 1 4099 - http://erj.ersjournals.com/content/31/1/54.short 4100 - http://erj.ersjournals.com/content/31/1/54.full SO - Eur Respir J2008 Jan 01; 31 AB - The aim of the present study was to investigate whether imprint cytology can improve the diagnostic accuracy of computed tomography-guided transthoracic core biopsy. Between October 1997 and June 2004, thoracic lesions in 622 patients underwent biopsy using 19-gauge coaxial guiding needles and 20-gauge biopsy needles under computed tomography guidance. Touch imprint cytology and histopathology were performed for all biopsy specimens. Of these lesions, 431 (74.1%) were diagnosed as malignant, 151 (25.9%) as benign and 40 (6%) as nondiagnostic. Imprint cytology plus histology shows an improved diagnostic accuracy of 96.4% compared with that of imprint cytology alone (92.3%) or histopathology alone (93.0%). Procedure-related complications requiring further treatment occurred in eight (1.4%) patients. In conclusion, imprint cytology combined with histopathology can improve the diagnostic accuracy of computed tomography-guided transthoracic needle biopsy.