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KMID : 1103720070560040339
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Journal of the Korean Society of Radiology
2007 Volume.56 No. 4 p.339 ~ p.347
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CT-guided Transthoracic Needle Biopsy with an 18-Guage Automated Cutting Needle: Diagnostic benefits and safety
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Yang Hee-Sun
Kim Yun-Hyun
Park Jin-Kyun
Sun Hyun-Ju
Yoon Woong
Kim Jae-Kyu
Kang Heoung-Keun
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Abstract
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Purpose: We wanted to evaluate the diagnostic benefits and safety of performing CT-guided transthoracic needle biopsy (TTNB) with using an18-gauge automated cutting needle.
Materials and Methods:We retrospectively reviewed the medical records of 332 patients who underwent CT-guided transthoracic biopsy with an automated 18-gauge cutting needle for 341 thoracic lesions. The histopathologic results, diagnostic accuracy and complication rate were determined.
Results: 316 (92.7%) of 34l lesions were histopathologically diagnosed by CT-guided TTNB. The lesions were malignant in 172 patients and benign in 144 patients. The diagnostic accuracy was 92.9%. The sensitivity and specificity for malignant lesions were 93% and 92.3%, respectively. The sensitivity and specificity for benign lesions were 92.3% and 93%, respectively. TTNB induced complications developed for 54 of 341 (15.8%) procedures. The most frequent complication was pneumothorax (41/341, 12%). Nine patients with pneumothorax (9/41, 22%) required chest tube placement.
Conclusions:CT-guided TTNB with an 18-gauge automated cutting needle could be useful for making the histopathologic diagnosis of malignant and benign pulmonary lesions as the technique provides a big enough tissue sample for histopathologic examination. The procedure-related complication rate was acceptably low.
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