Table 2. Patient characteristics (n=629).

	Median	Range
Age (years)	64.0	30–87
Pre-biopsy PSA (ng/ml)	6.97	0.2–61.6
Estimated prostate volume (ml)	52.2	14.5–247.6
Number of lesions on MRI / patient	2.0	1–5
	n	%
Race
Caucasian	502	79.8%
African-American	106	16.9%
Asian	10	1.6%
Others or unknown	11	1.7%
Reason for biopsy
Rising PSA - previous negative biopsy	274	43.6%
Active surveillance - prostate cancer	177	28.1%
Elevated PSA - biopsy naïve	83	13.2%
Atypia on previous biopsy	85	13.5%
Others	10	1.6%