Combined Fluoroscopy- and CT-Guided Transthoracic Needle Biopsy Using a C-Arm Cone-Beam CT System: Comparison with Fluoroscopy-Guided Biopsy.
- Author:
Joo Yeon CHEUNG
1
;
Yookyung KIM
;
Sung Shine SHIM
;
Soo Mee LIM
Author Information
- Publication Type:Original Article ; Comparative Study
- Keywords: Biopsy; Cone beam CT; Fluoroscopy; Lung
- MeSH: Adult; Aged; Aged, 80 and over; *Biopsy, Fine-Needle; *Cone-Beam Computed Tomography; Female; *Fluoroscopy; Humans; Lung/*pathology; Lung Neoplasms/pathology; Male; Middle Aged; *Radiography, Interventional; Sensitivity and Specificity
- From:Korean Journal of Radiology 2011;12(1):89-96
- CountryRepublic of Korea
- Language:English
- Abstract: OBJECTIVE: The aim of this study was to evaluate the usefulness of combined fluoroscopy- and CT-guided transthoracic needle biopsy (FC-TNB) using a cone beam CT system in comparison to fluoroscopy-guided TNB (F-TNB). MATERIALS AND METHODS: We retrospectively evaluated 74 FC-TNB cases (group A) and 97 F-TNB cases (group B) to compare their respective diagnostic accuracies according to the size and depth of the lesion, as well as complications, procedure time, and radiation dose. RESULTS: The sensitivity for malignancy and diagnostic accuracy for small (< 30 mm in size) and deep (> or = 50 mm in depth) lesions were higher in group A (91% and 94%, 92% and 94%) than in group B (73% and 81%, 84% and 88%), however not statistically significant (p > 0.05). Concerning lesions > or = 30 mm in size and < 50 mm in depth, both groups displayed similar results (group A, 91% and 92%, 80% and 87%; group B, 90% and 92%, 86% and 90%). Pneumothorax occurred 26% of the time in group A and 14% for group B. The mean procedure time and patient skin dose were significantly higher in group A (13.6 +/- 4.0 minutes, 157.1 +/- 76.5 mGy) than in group B (9.0 +/- 3.5 minutes, 21.9 +/- 15.2 mGy) (p < 0.05). CONCLUSION: Combined fluoroscopy- and CT-guided TNB allows the biopsy of small (< 30 mm) and deep lesions (> or = 50 mm) with high diagnostic accuracy and short procedure times, whereas F-TNB is still a useful method for large and superficial lesions with a low radiation dose.
