In certain situations, especially the post-operative spine, a painless injection of intravenous contrast may be required.
During the examination a knocking noise will normally be heard.
If sedation is used your pulse and oxygen saturation levels will be monitored with a pulse oximeter. This is a small clip attached to your finger. The average examination lasts between 20 and 30 minutes.
You may experience vibrations during part of the studies. The examination is entirely painless and usually lasts between 20 and 30 minutes.