What is the difference between a CT scan and a MRI scan?
Although CT and MRI machines can look quite similar, a CT scanner uses x-rays and ionising radiation, whilst a MRI scanner uses only a magnet and radio waves to generate an image. MRI images provide more detailed, higher quality images of the soft tissue structures in the body. How do I prepare for my scan? In most cases you can eat normally and take medications as usual before your scan. For some abdominal and pelvic studies we will ask you to fast before the scan to help us get the best possible pictures – this will be discussed with you when confirming your appointment. If you are claustrophobic and are booked to have sedation for your scan, it is important you do not eat or drink anything for 5 hours before your appointment time. You will also need to arrange for someone to drive you or accompany you home from SMRI following your scan. If you have any previous images or scans of the same area, we also recommend that you bring those with you. Will I need an injection? Some studies r
