Table 6. Relationships between post-HIFU PSA and post-HIFU prostate biopsy.

Sonography-guided biopsy	Positive of malignancy (N = 10)	Negative of malignancy (N = 17)	p value
iPSA, mean (ng/ml)	12.5	22.8	0.29
post-HIFU PSA nadir, mean (ng/ml)	0.3	1.4	0.15
biochemical recurrence, N	7	13	0.72