The scan can take between 10 minutes to over an hour to complete. This depends on the part of the body being imaged and what type of MRI is required to show the information. Before the scan begins, the radiographer will tell you how long the scan takes, so you know what to expect. Occasionally, you might need to return for delayed scans, usually after 1 or 2 hours, mostly with scanning of the liver.
If you received sedative medication, this will increase the time you will need to stay at the MRI facility.