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Cross-sectional
MRI
Magnetic Resonance Imaging
Detailed images of soft tissue, joints, brain and spine — without ionising radiation.
Typical visit
30–60 min
Preparation
Metal screening
Ionising radiation
None
Overview
MRI uses a strong magnetic field and radio waves to build detailed images of the inside of the body. It is especially good at showing soft tissue — the brain, spinal cord, ligaments, cartilage and organs.
Because MRI does not use X-rays, it involves no ionising radiation. The trade-off is time: scans take longer than CT and you will need to lie still while the images are taken.
Commonly used for
Brain and spine
Joints, ligaments and sports injuries
Abdomen and pelvis
Breast (selected cases)
Heart and blood vessels
What to expect
Safety screening. A radiographer goes through a short questionnaire about implants, devices and previous surgery.
Change. You change into a gown in a private suite and leave metal items in a locker.
The scan. You lie on a padded table that moves into the scanner. It is loud — you will have ear protection and a call button.
Afterwards. Most people go straight back to normal activities. If you had contrast, we may ask you to wait a few minutes.
Preparation
Before your visit
Complete the MRI safety questionnaire before you arrive
Tell us about any implant, pacemaker, stent or metal fragment
Leave jewellery and watches at home
Some scans need fasting — your confirmation will say
Preparing for your MRI
Common questions
Is MRI safe?
MRI does not use ionising radiation. The main safety question is metal in or on the body, which is why every patient is screened before entering the scanner room.
Will I fit in the scanner?
Many centres use wide-bore systems with more space. Tell us if you are concerned and we will explain the options at your chosen centre.
Can I bring someone with me?
Yes. A support person can usually stay with you until the scan, and in some cases in the room after their own safety screening.
How do I get my results?
A radiologist reports your images and sends the report to your referring clinician, who will discuss it with you.
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