You should ask your GP or consultant well before having the scan. If you're claustrophobic, you can ask for a mild sedative to help you relax. Anaesthesia and sedativesĪn MRI scan is a painless procedure, so anaesthesia (painkilling medication) isn't usually needed. You should let the staff know if you have a history of allergic reactions or any blood clotting problems before having the injection. You may be given a blood test to determine how well your kidneys are functioning and whether it's safe to go ahead with the scan. It's also possible for contrast agents to cause tissue and organ damage in people with severe kidney disease. These side effects are usually mild and don't last very long. Sometimes the contrast agent can cause side effects, like: This makes certain tissues and blood vessels show up more clearly and in greater detail. Some MRI scans involve having an injection of a contrast agent. Read more about who can and can't have an MRI scan. This can then be looked into before your scan. If you have any metal in your body, you should tell the person referring you for the scan. MRI scans may not be recommended for patients with certain implants or foreign bodies. You're given a squeeze alarm which can alert the Radiographers if you have any concerns during your scan. These effects only last a short while and should ease as soon as the scan is over. Some patients occasionally experience a tingling sensation or feel hot from being in the MRI scanner. No evidence has been found to suggest there's a risk, which means MRI scans are one of the safest medical procedures available. Extensive research has been carried out into whether the magnetic fields and radio waves used during MRI scans may pose a risk to the human body. Is an MRI scan safe?Īn MRI scan is a painless and safe procedure. If you don't need to wear a gown, you should wear clothes without metal zips, fasteners, buttons, underwire (bras), belts or buckles. However, any valuables you do bring can usually be stored in a secure locker.ĭepending on which part of your body is being scanned, you may need to wear a hospital gown during the procedure. You should avoid bringing valuables along with you to your MRI scan. medicine patches (like nicotine or hormone patches).wigs (some wigs contain traces of metal).piercings, like ear, nipple and nose rings.This helps to ensure that it's safe for you to have the scan.Īs the MRI scanner uses strong magnetic fields, it's important to remove any metal objects from your body. When you arrive for your scan, you'll be asked to fill in and sign a questionnaire about your health and medical history. Other patients may be asked to drink quite a large amount of water beforehand. In some cases, you may be asked not to eat or drink anything for up to 4 hours before the scan. On the day of your MRI scan, you should be able to eat, drink and take any medication as usual, unless you're advised otherwise. assess how effective previous treatment has been.The results of an MRI scan can be used to: You lie inside the tube during the scan.Īn MRI scan can be used to examine any part of the body. Magnetic resonance imaging (MRI) is a type of scan that uses strong magnetic fields and radio waves to produce detailed images of the inside of the body.Īn MRI scanner is a large tube that contains powerful magnets.
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