GRP and prostate cancer: Figs. 9e-k present in vivo TRUSPA imaging results from a patient with proven prostate cancer as evidenced on preoperative PET-MRI, using 68 Ga labeled PET tracer targeting of bombesin on the prostate cancer cells, and followed by PET-MRI contrast-targeted biopsy (with MRI-TRUS fusion) of the prostate using the conventional TRUS device.