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. 2017 Jun;6(3):395–405. doi: 10.21037/tau.2017.01.14

Table 1. Overview of positive biopsy rates in larger published trials of direct and fusion MRI-targeted biopsy of the prostate.

Population Method Positive target biopsy
177 men with PI-RADS 3+ targets, most biopsy naïve (24) Direct 36% (64/177)
106 men with ≈ PI-RADS 4+ targets and prior negative transrectal ultrasound guided biopsy (25) Direct 37% (39/106)
176 men with ≈PI-RADS 3+ and prior negative transrectal ultrasound guided biopsy (26) Direct 73% (202/277)
142 biopsy naïve men with PI-RADS 3+ targets (17) Direct 70% (99/142)
Second subcohort of 25 men with ≈ PI-RADS 4+ targets, most with prior negative transrectal ultrasound guided biopsy (data in this paper) Direct 84% (21/25)
1,003 men with ≈PI-RADS 3+ targets, most with prior negative transrectal ultrasound guided biopsy (5) Fusion 47% (469/1003)
104 men with ≈PI-RADS 4+ targets and prior negative transrectal ultrasound guided biopsy (25) Fusion 39% (41/104)
825 men with ≈PI-RADS 3+ targets, mix of biopsy naïve and prior transrectal ultrasound guided positive and negative (27) Fusion 53% (434/825)