Abstract
CT-guided lung biopsy is a well-established diagnostic method for pulmonary lesions. The aim of our study was to evaluate the diagnostic outcomes and safety profile of conventional CT-guided lung biopsies. We retrospectively analyzed the results of CT-guided lung biopsies for 750 patients to determine the diagnostic accuracy, complication rates, and independent risk factors for diagnostic failure and severe pneumothorax. Diagnostic accuracy was 92.9%. Independent risk factors for diagnostic failure were malignant lesions (odds ratio [OR], 4.20; 95% CI, 1.66-14.1; p = 0.001), lesions in the lower lobe (OR, 2.01; 95% CI, 1.17-3.47; p = 0.011), lesions 2.0 cm or smaller (OR, 2.87; 95% CI, 1.59-5.48; p < 0.001), and the presence of pneumothorax during the procedure (OR, 2.18; 95% CI, 1.27-3.78; p = 0.004). Pneumothorax requiring drainage occurred in 7% of patients. Independent risk factors for pneumothorax requiring drainage were age of 73 years or older (OR, 2.19; 95% CI, 1.21-4.05; p = 0.009), the presence of emphysema (OR, 4.29; 95% CI, 2.05-8.82; p < 0.001), benign lesions (OR, 2.33; 95% CI, 1.20-4.40; p = 0.012), supine positioning of the patient (OR, 2.61; 95% CI, 1.44-4.84; p = 0.001), and length from the pleura to the lesion of 1.5 cm or greater (OR, 3.08; 95% CI, 1.63-6.17; p < 0.001). CT-guided lung biopsy has a high diagnostic accuracy. Complication rates were acceptable and comparable to those of previous studies.
Published Version
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