[The factors determining diagnostic accuracy in CT-guided percutaneous needle biopsy of small pulmonary nodules].
Between February 1997 and March 1999, 79 consecutive CT-guided automated needle biopsy procedures were performed in 78 patients (79 small pulmonary nodules measuring 20 mm or less in diameter). In 69 (87%) of 79 lesions, sufficient material for histologic diagnosis was obtained. We evaluated the factors affecting diagnostic accuracy in CT-guided automated needle biopsy. Lesion diameter, depth from skin, chronic pulmonary disease and location were analyzed. The diameter of the lesion was a significant factor contributing to diagnostic accuracy (p = 0.0108). Pneumothorax occurred in 18 cases (23%). In 5 cases (6%), chest tube placement was necessary. Postbiopsy hemoptysis or hemosputum occurred in 23 cases (29%). In conclusion, lesion diameter was a critical factor in diagnostic accuracy. CT-guided automated needle biopsy is a feasible, useful and safe technique for the histological diagnosis of small lung lesions, but especially those larger than 8 mm in diameter.
Yoshimura
Naruo
N
Department of Respiratory Medicine, Graduate School of Medicine, Osaka City University.
Takeda
Koji
K
Tada
Hirohito
H
Kudoh
Shinzoh
S
Hirata
Kazuto
K
Takifuji
Nobuhide
N
Terakawa
Kazuhiko
K
Negoro
Shunichi
S
Yoshikawa
Junichi
J
D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001707:Biopsy, Needle / Q000379:methods*; D005260:Female; D006801:Humans; D008168:Lung / Q000000981:diagnostic imaging / Q000473:pathology*; D008297:Male; D008875:Middle Aged; D012189:Retrospective Studies; D003074:Solitary Pulmonary Nodule / Q000175:diagnosis*; D014057:Tomography, X-Ray Computed