MRI/Ultrasound Fusion Guided Prostate Cryotherapy

Inclusion Criteria: * Men between 55 and 65 years of age with a clinical diagnosis of prostate cancer with Low or Intermediate risk prostate cancer, and \<50% positive core rate by prostate lobe * Men older than 65 years of age with clinical diagnosis of prostate cancer \<50% positive core rate by prostate lobe * Absence of extra-capsular extension * Absence of seminal vesicle invasion * Absence of regional or distant metastatic disease * Multiparametric MRI of the prostate performed either before the biopsy or \>10 weeks after prostate biopsy * Treated with Cryotherapy of the prostate * Treatment based on co-registration between MP-MRI and Prostate Ultrasound Exclusion Criteria: * Prior treatment of prostate cancer in the form of surgery. * Performance status greater than 0 based on ECOG criteria * Mental status impairment