Objective: To evaluate the role of contrast-enhanced transrectal ultrasonography (CE-TRUS) for diagnosing prostate cancer. Methods: The 128(改为 A hundred and twenty-eight) cases with abnormal prostate-specific antigen (PSA) and/or digital rectal examination (DRE) were examined by TRUS and CRTRUS respectively, and the results were compared with those by pathology of biopsy or radical retro-public prostectomy. The targeted biopsy in abnormal CE-TRUS areas was also compared to systematic biopsy. Results: Among 128 subjects diagnosed with PCa, 54 cases had abnormal CE-TRUS performance, including 46 cases of PCa with 82.1% sensitivity. And the sensitivity of TURS was only 64.3%. Eight false-positive and ten false-negative findings from CE-TRUS were observed. The false-positive was mainly due to BPH, urgent/chronic prostatitis, while the false-negative was mainly due to the original site located in the peripheral zone or transitional zone with low PSA levels, small volume and high differentiation. In Furthermore, the positive rate of targeted biopsy was much higher than that in the system random biopsy in those cases. Significant correlation between the cancer detection rate with CE-TRUS and serum PSA levels were also found Conclusion: CE-TRUS with targeted biopsy can be used to improve the clinical detection rate of prostate cancer. And systematic biopsy should not be excluded due to the unsatisfied false-positive and false-negative compared to targeted biopsy.
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基金项目 天津市科技计划项目(12ZCDZSY16300; 11ZCGYSY02300)
作者简介 王超 (1988-),男,硕士在读,研究方向:泌尿系统肿瘤;
通信作者:徐勇,E-mail:xuyong8816@sina.com。