抄録
We evaluated the diagnostic accuracy and complication rates for CT-guided cutting needle biopsy of pulmonary lesions performed with or without fluoroscopic guidance. The evaluation of the outcome was performed retrospectively for 283 lesions by conventional CT-guided method (group 1) and 293 lesions by CT fluoroscopy-guided method (group 2). Biopsies were performed using 18-G cutting needle in all lesions. Diagnostic yield, including sensitivity and specificity for the diagnosis of malignancy, accuracy and complication rates were calculated. The sensitivity, specificity and accuracy were respectively 93.6%, 98.2% and 95.4% in group 1 and 93.3%, 100% and 95.2% (p=1.00) in group 2. The pneumothorax rate and requirement of drainage rate were respectively 28.8% and 2.2% in group 1 and 29.8% (p=0.85) and 1.0% (p=0.18) in group 2. Intrapulmonary hemorrhage and hemoptysis were occurred in respectively 15.9% and 4.4% of group 1 and 31.8% (p=0.000014) and 2.4% (p=0.16) of group 2. Therefore diagnostic accuracy and complication rates for CT-guided cutting needle biopsy of pulmonary lesions with or without fluoroscopic guidance were not significantly different between the two groups. CT fluoroscopy-guided lung biopsy is a useful diagnostic modality, but should be used on a case-by-case basis because of the associated radiation exposure.
