title: Role of colour Doppler imaging in detecting prostate cancer.
abstract: OBJECTIVE
  This prospective study was undertaken to evaluate the role of colour Doppler sonography in the assessment of prostate carcinoma.
  
  
  METHODS
  Forty consecutive patients who were suspected of having prostate carcinoma with either raised prostate specific antigen or abnormal digital rectal examination were included in the study. Transrectal greyscale and colour Doppler sonography of the prostate was performed using a 5-9 MHz intracavitary probe. Needle biopsies were taken from areas that showed increased flow on colour Doppler. The results were correlated with the final diagnosis established on histopathological examination.
  
  
  RESULTS
  Comparison of greyscale and colour Doppler sonography showed that the latter is more sensitive and specific in predicting the malignancy. The statistical parameters of colour Doppler versus grayscale sonography were: sensitivity 88.23 vs. 73.52, specificity 66.66 vs. 33.33, positive predictive value 93.75 vs. 85.18, and negative predictive value 50 vs. 22.22, respectively.
  
  
  CONCLUSIONS
  Colour Doppler and greyscale sonography should be routinely performed to improve detection of prostate carcinoma and to target the lesion.
authors.affiliation: Department of Radiodiagnosis, Postgraduate Institute of Medical Sciences, Rohtak, Haryana, India.
authors.forename: Jyotsna
authors.initials: J
authors.lastname: Sen
authors.forename: Lalita
authors.initials: L
authors.lastname: Choudhary
authors.forename: Sanjay
authors.initials: S
authors.lastname: Marwah
authors.forename: Rajesh
authors.initials: R
authors.lastname: Godara
authors.forename: Nisha
authors.initials: N
authors.lastname: Marwah
authors.forename: Rajiv
authors.initials: R
authors.lastname: Sen
mesh_terms: D006801:Humans; D008297:Male; D011471:Prostatic Neoplasms / Q000000981:diagnostic imaging*; D012680:Sensitivity and Specificity; D018615:Ultrasonography, Doppler, Color