Deuterium Metabolic Imaging in People with Multiple Sclerosis

This study uses a special type of MRI scan called Deuterium Metabolic Imaging to look at how the brain uses energy in people with multiple sclerosis (MS). Researchers want to understand if this new scanning method can detect changes in brain metabolism that standard MRI scans miss. **You may be eligible if...** - You are between 18 and 60 years old - You have been diagnosed with relapsing-remitting multiple sclerosis (RRMS) **You may NOT be eligible if...** - You have a pacemaker, neurostimulator, or metal implants in your body - You experience severe claustrophobia (fear of enclosed spaces) - Your body circumference (including arms) is greater than 160 cm - You are pregnant - You have another serious neurological, psychiatric, or systemic disease such as diabetes - You are currently participating in another clinical drug trial Talk to your doctor to see if this trial is right for you.