Mechanism of Action. 1  Nivolumab is a human immunoglobulin G4 (IgG4) monoclonal antibody that binds to the PD-1 receptor and blocks its interaction with PD-L1 and PD-L2, releasing PD-1 pathway-mediated inhibition of the immune response, including the anti-tumor immune response.
This means it's unlikely you'll know the results of your scan immediately. The radiologist will send a report to the doctor who arranged the scan, who will discuss the results with you. It usually takes a week or two for the results of an MRI scan to come through, unless they're needed urgently.
An MRI scan is a painless procedure which allows your doctor to see detailed images of the inside of your body. You will have the scan in a hospital, but you can usually go home the same day. An MRI scan usually takes between 30 and 50 minutes. However, some scans may last for an hour to an hour and a half.n MRI scan is a painless procedure which allows your doctor to see detailed images of the inside of your body. You will have the scan in a hospital, but you can usually go home the same day. An MRI scan usually takes between 30 and 50 minutes. However, some scans may last for an hour to an hour and a half.