title: [Evaluation of the value of ultrasound-guided core needle biopsy in the diagnosis of breast lesions].
abstract: OBJECTIVE
  To investigate the accuracy, consistency and related affecting factors in pathological results of breast lesions diagnosed by ultrasound-guided core needle biopsy (CNB) and conventional excision histopathology.
  
  
  METHODS
  The clinical data of 177 consecutive cases of breast lesions examined by ultrasound-guided CNB and subsequently excised were reviewed from Jan. 2003 to Nov. 2009. The agreement of pathological diagnosis between the CNB and subsequent excision pathology was analyzed.
  
  
  RESULTS
  There were 136 cancers in the final diagnosis after surgical excision among 386 breast lesions and 129 of them were diagnosed by CNB. The sensitivity (true positive) of CNB was 94.9%, false negative rate was 5.1%, specificity (true negative) was 100%, false positive rate 0, Youden's index was 0.949, and positive predictive value and negative predictive value were 100% and 85.4%, respectively. Condensation rate was 96.0% and Kappa value was 0.895.
  
  
  CONCLUSIONS
  Ultrasound-guided CNB with histopathological assessment is accurate in diagnosis of breast lesions and has a great consistency with conventional excision pathology. It is a reliable method for the diagnosis of breast lesions to avoid an over-reliance on excision pathological examination.
authors.affiliation: Breast Center, Shunyi Health Care Hospital for Women and Children, Beijing 101300, China. liyiborui@126.com
authors.forename: Yi
authors.initials: Y
authors.lastname: Li
authors.forename: Xue-Song
authors.initials: XS
authors.lastname: Tong
authors.forename: Wei-Min
authors.initials: WM
authors.lastname: Mu
authors.forename: Wei-Guo
authors.initials: WG
authors.lastname: Peng
authors.forename: Ya-Jie
authors.initials: YJ
authors.lastname: Su
authors.forename: Yue
authors.initials: Y
authors.lastname: Zhao
authors.forename: Chao
authors.initials: C
authors.lastname: Sun
mesh_terms: D000236:Adenoma / Q000175:diagnosis / Q000473:pathology; D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001707:Biopsy, Needle / Q000379:methods*; D001940:Breast / Q000473:pathology*; D001943:Breast Neoplasms / Q000175:diagnosis* / Q000473:pathology; D002277:Carcinoma / Q000175:diagnosis* / Q000473:pathology; D003951:Diagnostic Errors; D005260:Female; D006801:Humans; D006965:Hyperplasia; D008875:Middle Aged; D011237:Predictive Value of Tests; D012189:Retrospective Studies; D012680:Sensitivity and Specificity; D016217:Ultrasonography, Mammary; D055815:Young Adult