title: [US guided biopsy in the early diagnosis of prostatic cancer. A series of 66 cases].
abstract: OBJECTIVE
  Our study's aim is to evaluate the reliability of digital rectal examination and serum PSA in the indication of prostatic biopsy.
  
  
  METHODS
  66 patients with abnormal digital rectal examination and arised PSA levels had prostatic biopsies. The sextant technique was practiced.
  
  
  RESULTS
  The digital rectal examination had a sensitivity of 65%, a specificity of 45% and a positive predictive value (PPV) of 34.3%. The serum PSA had a PPV of 25%. The association if these two parameters arised the PPV to 39.5%. Cancer detection rate was estimated to 30.3%.
  
  
  CONCLUSIONS
  Prostatic biopsies should be indicated according to the result of digital rectal examination and serum PSA.
authors.affiliation: Service de Radiologie de l'Hôpital Habib Thameur de Tunis.
authors.forename: Chiraz
authors.initials: C
authors.lastname: Chammakhi-Jemli
authors.forename: A
authors.initials: A
authors.lastname: Daghfous
authors.forename: Mohamed
authors.initials: M
authors.lastname: Sfaxi
authors.forename: Lotfi
authors.initials: L
authors.lastname: Ben Hassine
authors.forename: Mohsen
authors.initials: M
authors.lastname: Ayed
authors.forename: M Habib
authors.initials: MH
authors.lastname: Daghfous
mesh_terms: D000368:Aged; D001707:Biopsy, Needle / Q000379:methods*; D055088:Early Detection of Cancer; D006801:Humans; D008297:Male; D008875:Middle Aged; D011446:Prospective Studies; D011471:Prostatic Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology*; D014463:Ultrasonography