Screening of prostate cancer with PSA and transperineal six sextant biopsy

Shigeto Ishidoya, Yukihiko Ogata, Yasuo Inaba, Shozo Ota, Hideo Saito, Yasuo Yamashita, Tetsutaro Ohnuma

    Research output: Contribution to journalArticlepeer-review

    2 Citations (Scopus)


    (Object) The objectives of this study are to examine how many cancer patients we can detect among the outpatients whose PSA values are above 4.0 ng/ml, and to compare the usefulness of transperineal six sextant biopsy (ss- biopsy) with that of transrectal one. (Methods) All the male outpatients (above 50 years old) were inspected Tandem-R PSA levels and digital rectal examination (DRE). Among them, 129 patients showed more than 4.0 ng/ml of PSA values and/or positive finding of DRE, and underwent subsequent transperineal ss-biopsy. (Results) Cancers were detected in 52 patients (40.3%) without major complications. Among 64 gray zone (PSA 4.1~10.0 ng/ml) patients, 17 (26.6%) were found to be cancer by ss-biopsy, meanwhile only 2 cancer patients (8.9%) were detected from 23 gray zone ones by traditional directed biopsy. Application of PSA density could not be found practicable to eliminate unnecessary biopsies in the gray zone group. (Conclusion) Prostate cancer could be found nearly a fourth in the gray zone group of the outpatients. To enhance the detection rate, obtaining at least 6 core samples are recommended from either perineal or rectal root.

    Original languageEnglish
    Pages (from-to)579-585
    Number of pages7
    JournalJapanese Journal of Urology
    Issue number5
    Publication statusPublished - 1999 May


    • Prostate-specific antigen
    • Prostatic neoplasms
    • Six sextant biopsy

    ASJC Scopus subject areas

    • Urology


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