title: Usefulness of new automated cutting needle for tissue-core biopsy of lung nodules under CT fluoroscopic guidance.
abstract: OBJECTIVE
  The goal of our study was to evaluate the efficacy and safety of a new type of automated cutting needle for tissue-core lung biopsy under real-time CT fluoroscopic guidance.
  
  
  METHODS
  Observational
  
  
  METHODS
  One hundred ten percutaneous needle tissue-core lung biopsies were performed with the Auto Surecut needle (Create Medic; Yokohama, Japan) under CT fluoroscopic guidance, and the specimens obtained underwent histopathologic evaluation. A final diagnosis was confirmed by independent surgical pathology.
  
  
  RESULTS
  The rate of success for the diagnosis for specimens that were adequate for histopathologic analysis was 94.5% (104 of 110 specimens). The sensitivity, specificity, and accuracy in diagnosing malignancy were 95.1%, 100%, and 96.2%, respectively. A specific cell type could be characterized in 95.2% of those 104 lesions (99 lesions; malignant, 76 lesions; benign, 23 lesions). The specific cell type was precisely diagnosed, and was confirmed after surgery in 65 malignant lesions and 23 benign lesions. The biopsy-induced complications encountered were pneumothorax in 34.5% (38 of 110 patients) and hemoptysis in 6.4% (7 of 110 patients). No patient had a serious complication.
  
  
  CONCLUSIONS
  CT fluoroscopy-guided lung biopsy using the Auto Surecut needle provides a high degree of diagnostic accuracy, allows for the specific characterization of lung nodules, and can be performed safely.
authors.affiliation: Department of Radiology, Kyoto Prefectural University of Medicine, Kyoto, Japan. yamagami@koto.kpu-m.ac.jp
authors.forename: Takuji
authors.initials: T
authors.lastname: Yamagami
authors.forename: Shigeharu
authors.initials: S
authors.lastname: Iida
authors.forename: Takeharu
authors.initials: T
authors.lastname: Kato
authors.forename: Osamu
authors.initials: O
authors.lastname: Tanaka
authors.forename: Shogo
authors.initials: S
authors.lastname: Toda
authors.forename: Daishiro
authors.initials: D
authors.lastname: Kato
authors.forename: Tsunehiko
authors.initials: T
authors.lastname: Nishimura
mesh_terms: D000368:Aged; D001707:Biopsy, Needle / Q000009:adverse effects / Q000295:instrumentation*; D004867:Equipment Design; D005260:Female; D005471:Fluoroscopy; D006469:Hemoptysis / Q000209:etiology; D006801:Humans; D008168:Lung / Q000473:pathology; D008175:Lung Neoplasms / Q000473:pathology*; D008297:Male; D009339:Needles; D011030:Pneumothorax / Q000209:etiology; D012680:Sensitivity and Specificity; D003074:Solitary Pulmonary Nodule / Q000473:pathology*; D014057:Tomography, X-Ray Computed