Value of real-time elastography targeted biopsy for prostate cancer detection in men with prostate specific antigen 1.25 ng/ml or greater and 4.00 ng/ml or less

The Journal of Urology
Friedrich AignerFerdinand Frauscher

Abstract

We assessed the prostate cancer detection rate of real-time elastography targeted biopsy in men with total prostate specific antigen 1.25 ng/ml or greater and 4.00 ng/ml or less. Real-time elastography using an EUB 8500 Hitachi ultrasound system (Hitachi Medical, Tokyo, Japan) was done in 94 men with a mean age of 57.4 years (range 35 to 77) with increased prostate specific antigen between 1.25 ng/ml or greater and 4.00 ng/ml or less (mean 3.20, range 1.30 to 4.00) and a free-to-total prostate specific antigen ratio of less than 18%. Real-time elastography was done to evaluate peripheral zone tissue elasticity and hard areas were defined as suspicious. Targeted biopsies with a maximum of 5 cores were done in suspicious areas, followed by 10-core systematic biopsy. We analyzed the cancer detection rate of real-time elastography and systematic biopsy. Cancer was found in 27 of 94 patients (28.7%). Real-time elastography detected cancer in 20 patients (21.3%) and systematic biopsy detected it in 18 (19.1%). Positive cancer cores were found in real-time elastography targeted cores in 38 of 158 cases (24%) and in systematic cores in 38 of 752 (5.1%) (chi-square test p <0.0001). The cancer detection rate per core was 4.7-fold greater...Continue Reading

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