Using FAPI PET/MRI to Evaluate Prostate Cancer

This study is testing a new type of imaging scan called FAPI PET/MRI to see how well it detects and characterizes prostate cancer compared to the current standard imaging scan (PSMA PET). FAPI targets a protein found in the tissue surrounding tumors, which may help identify cancer that the standard scan misses. **You may be eligible if...** - You are 18 or older with a known diagnosis of prostate cancer - You are already scheduled for or recently had (within 4 weeks) a standard PSMA PET scan as part of your care - You are willing and able to undergo a PET/MRI scan **You may NOT be eligible if...** - You have a medical reason you cannot have a PET/MRI (such as certain metal implants or severe claustrophobia that cannot be managed with mild oral medication) - Doing the additional research scan would delay your treatment - You require intravenous sedation for imaging Talk to your doctor to see if this trial is right for you.