Figure 4From: Transperineal prostate biopsy: analysis of a uniform core sampling pattern that yields data on tumor volume limits in negative biopsiesProbability of detection versus tumor volume for different spacings of the finite core centers, from S = 0.5 cm to S = 1.2 cm. The effective core spacing is s = S - R c in each case. for n < 1, see equation (1), and for n > 1, see equation (2). The dashed line at PoD = 78.5% identifies where n = 1.Back to article page