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.
The length of MRI examinations can vary from 15 minutes to 1 1/2 hours, averaging 45 minutes. ChaCha! [ Source: http://www.chacha.com/question/how-long-does-a-mri-take ].he scan will take 30 to 90 minutes. Preparation and sedation take an additional 60 minutes. The length of time depends upon the part of the body being scanned. https://www.med.virginia.edu/internet/radiology/pediatrics/pediatrics-mri-scan.cfm. A really long time, maybe half an hour, that you can't move you head.