<qa>  What is the primary objective of the diagnostic clinical trial?This diagnostic clinical trial will be conducted according to a randomized, prospective, controlled, double-arm, single-centre design. The control will be implemented by comparing the PETMRI results with the histopathological finding after radical prostatectomy positive state, the assumed absence of a relevant prostate cancer focus if PETMRI guided biopsy and standard biopsy are negative negative state andor the detection of a biochemical tumor relapse rising PSA after PSA nadir; secondary objective. 