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Combined fluoroscopy- and CT-guided transthoracic needle biopsy using a C-arm cone-beam ct system: Comparison with fluoroscopy-guided biopsy

Title
Combined fluoroscopy- and CT-guided transthoracic needle biopsy using a C-arm cone-beam ct system: Comparison with fluoroscopy-guided biopsy
Authors
Cheung J.Y.Kim Y.Shim S.S.Lim S.M.
Ewha Authors
김유경임수미심성신
SCOPUS Author ID
김유경scopus; 임수미scopus; 심성신scopus
Issue Date
2011
Journal Title
Korean Journal of Radiology
ISSN
1229-6929JCR Link
Citation
vol. 12, no. 1, pp. 89 - 96
Indexed
SCIE; SCOPUS; KCI WOS scopus
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 (≥ 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 ≥ 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 (≥ 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.
DOI
10.3348/kjr.2011.12.1.89
Appears in Collections:
의과대학 > 의학과 > Journal papers
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