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.
How long does the MRI scan take? For most exams, expect to be in the department for a minimum of one hour. We need time to prepare you for your scan, and then take you into the room for the actual exam. For most body cases (exams like liver, pelvis, heart) expect to be in the department for two hours.