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| Clinical value of prostatic biopsy under the guidance of transrectal power Doppler ultrasonography |
| CHEN Li, YUAN Xin-chun, HU Yang-liu |
| Department of Ultrasound, First Affiliated Hospital of Nanchang University, Nanchang 330006, China |
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Abstract Objective: To evaluate the clinical value of transrectal power Doppler ultrasonography(PDU) and PDU-directed prostatic biopsy to improve the diagnosis of prostatic cancer. Methods: Fifty-four patients suspected to be prostatic cancer underwent routine gray-scale TRUS, transrectal PDU of the entire gland before biopsy. According to the result, select the protocols of gray-scale TRUS, transrectal PDU and combined use of six-score transrectal biopsy protocols. The sensitivity, specificity, positive predictive value, negative predictive value were compared and analyzed. Results: Abnormal flow was detected by power Doppler scanning in 37 patients, among them 23 cases were of prostatic cancer(two of them were normal on gray-scale image), BPH in 11 cases, prostatic cancer cannot be ruled out in 1 case, prostatic mass of undetermined nature in 1 case, metastatic prostatic cancer of bladder origin in 1 case. Conclusions: Transrectal PDU can improve the sensitivity of cancer detection, and can determine the correct site for PDU-directed biopsy, the Gleason score is significantly higher.
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Received: 21 August 2008
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2009, Vol. 20 
