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| Diagnostic Value of TransrectaI US in Prostate Cancer and Usefulness of TransperineaI Prostate Biopsy UsingAutomated Biopsy Gun |
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| Dae Seob Choi, M.D., Seung Hyup Kim, M.D., Hak Jong Lee, M.D., Kyung Mo Yeon, M.D., Sang Eun Lee, M.D,1, Chongwook Lee, M.D,1, Si Whang Kim, M.D.1 |
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| Department of Radiology, Urology1, Seoul National University College of Mdicine |
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| We performed this retrospective study to evaluate the diagnostic value of transrectal ultrasound(TRUS) forprostate cancer and the usefulness of TRUS-guided transperineal prostate biopsy. Fifty patierrts underwentTRUS-guided transperineal prostate biopsy by using automated biopsy gun mounted with 18-gauge, 10cm biopsy needle.The patients were examined with 5MHz transducer in the longitudinal and transverse planes. US criterion forprostate cancer was a typoechoic nodule located in the peripheral zone of the prostate. Fifty-nine biopsies weredone in fifty patients. Sufficient tissue for the histopathologic diagnosis was obtained from forty-nineprocedures(96%). Histopathologically, there were 18 cases(37%) of cancer, 21(43%) nodular hyperplasia, five(10%)inflammation, one(2%) fibrosis, and four(8%) mormal. The sensitivity, specificity, positive predictive value,negative predictive value, and diagnostic accuracy of TRUS for cancer were 83, 74, 65, 88, and 78%, respectively.There was no significant complication related to the procedure. TRUS-guided transperineal proatate biopsy usingautomated biopsy gun is a safe procedure with fairly high diagnostic value. |
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| Keyword : Prostate. neoplasm Prostate. transcrectal ultrasound Prostate. biopsy |
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Journal of Korean Society of Ultrasound in Medicine 1995 ; 14 (1) : p.043-048
