You will be asked to lie on a cushioned table, which will move slowly through the scanner to allow pictures to be taken at different angles. The machine makes a gentle noise while scanning. A cannula (small tube) will be inserted into a vein before you go into the scan room or a small needle will be inserted into a vein during the scan. An injection of fluid (contrast medium) is often given into a vein in your hand. This helps to provide clearer images.
You may experience a warm or flushing sensation during the injection, an occasional metallic or tingling taste in the mouth. These side effects usually last for only a few seconds.
For some scans, you may be asked to hold your breath for short periods. A member of the scanning team will give you instructions about your breathing and let you know what is happening at each stage of the scan. During the scan, the Radiographer and the doctor(Radiologist) will be able to see you from the control room and you can talk to each other through an intercom.