Role of colour Doppler imaging in detecting prostate cancer.
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.
Sen
Jyotsna
J
Department of Radiodiagnosis, Postgraduate Institute of Medical Sciences, Rohtak, Haryana, India.
Choudhary
Lalita
L
Marwah
Sanjay
S
Godara
Rajesh
R
Marwah
Nisha
N
Sen
Rajiv
R
D006801:Humans; D008297:Male; D011471:Prostatic Neoplasms / Q000000981:diagnostic imaging*; D012680:Sensitivity and Specificity; D018615:Ultrasonography, Doppler, Color