title: [The factors determining diagnostic accuracy in CT-guided percutaneous needle biopsy of small pulmonary nodules].
abstract: 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.
authors.affiliation: Department of Respiratory Medicine, Graduate School of Medicine, Osaka City University.
authors.forename: Naruo
authors.initials: N
authors.lastname: Yoshimura
authors.forename: Koji
authors.initials: K
authors.lastname: Takeda
authors.forename: Hirohito
authors.initials: H
authors.lastname: Tada
authors.forename: Shinzoh
authors.initials: S
authors.lastname: Kudoh
authors.forename: Kazuto
authors.initials: K
authors.lastname: Hirata
authors.forename: Nobuhide
authors.initials: N
authors.lastname: Takifuji
authors.forename: Kazuhiko
authors.initials: K
authors.lastname: Terakawa
authors.forename: Shunichi
authors.initials: S
authors.lastname: Negoro
authors.forename: Junichi
authors.initials: J
authors.lastname: Yoshikawa
mesh_terms: 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