Throughout the exam, between scans, the technologist may talk to you and let you know how long each scan will be. Because the scanner is noisy, the technologist will give you ear plugs. You will be properly positioned and the appropriate camera placed on the body part being imaged. During the scan, you will lie on a table that is attached to the MRI scanner. What can I expect during the exam?Ī magnetic resonance technologist performs the MRI scan. The MRI scanner does not use radiation, has no known side effects or risks and is considered safe for both children and adults. The MRI department follows strict safety procedures to ensure there are no potentially dangerous objects in the MRI scan room. This means that you will need to remove any metal objects (e.g. The powerful magnetic field of the MRI scanner attracts iron-containing objects, which may cause them to move suddenly and fly through the air toward the centre of the magnet. These noises are made by magnetic coils that are quickly switching on and off as they read the signal coming from your body. An MRI scanner is a large doughnut-shaped machine that uses a large magnet, radio waves and a computer to make accurate cross-sectional images, or “slices”, of a body part.ĭuring an MRI scan, you will hear tapping and knocking noises. Whereas x-rays take an image of dense structures like bones, the MRI scanner takes images of soft tissues in joints (e.g. It is a state-of-the-art imaging method that makes very clear images of the human body without using x-rays. MRI stands for “magnetic resonance imaging”.
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