High Resolution Diffusion Weighted Imaging in Prostate

This study compares two types of MRI imaging techniques — standard and high-resolution diffusion-weighted imaging — in men being evaluated for prostate cancer. Researchers want to see if the newer high-resolution technique provides better diagnostic information. **You may be eligible if...** - You are a man who has already undergone a standard prostate MRI that included both techniques - Your medical records are available and complete **You may NOT be eligible if...** - You are currently taking or recently took 5-alpha-reductase inhibitors (a class of prostate medication like finasteride or dutasteride) in the past 6 months - You have had a previous prostate biopsy, prostate surgery, or treatment for prostate cancer Talk to your doctor to see if this trial is right for you.