Transperineal mapping biopsy improves selection of brachytherapy boost for men with localized prostate cancer.

Purpose: To determine if transperineal mapping biopsy (TPMB) can improve the selection of brachytherapy alone (BT) or brachytherapy boost (BTB) in men with localized prostate cancer.

Methods And Materials: Two hundred and eighteen men underwent TPMB with a mean of 48.6 cores retrieved.

The Ratio of the Number of Biopsy Specimens to Prostate Volume (Biopsy Density) Greater Than 1.5 Improves the Prostate Cancer Detection Rate in Men Undergoing Transperineal Biopsy of the Prostate.

Purpose: We sought to determine the minimum number of transperineal prostate mapping biopsies needed to optimize the prostate cancer detection rate.

Materials And Methods: A total of 436 men underwent transperineal prostate mapping biopsy at 2 institutions. Biopsy density was calculated as the ratio of the total number of specimens retrieved (mean 59.