MRI (Magnetic Resonance Imaging) is an examination that visualizes all the organs of our body, and in particular soft tissues (as opposed to bones).
Unlike the scanner, MRI does not use X-rays. It is not an irradiating examination. It uses an electromagnetic field and radio waves.
- analyze their structure,
- look for malformations,
- identify inflammation, abscess,
- to highlight a tumor, to know its exact size, its extension in the 3 planes of space, its cancerous or benign nature.
- visualize haemorrhage and the formation of a hematoma,
- visualize ischemia (that is, an organ or part of a blood-deprived organ).
MRI provides a series of vertical or horizontal organ cuts. It is possible to inject a contrast product, it is not an iodized product, so there is no risk of allergy to this product. Thanks to the contrast medium, the organs are better visualized.
The procedure is scanned and the images can be saved on digital media. So we look at them on a computer screen.
How is an MRI done?
The MRI room is furnished with an examination table surrounded by a large ring which is constituted by a powerful magnet and radio antennas. Part of the room is separated from the main area by a protective glass behind which is located a dashboard, where the staff sees the patient, converses with him and directs the machine.
The patient after having been informed of the way the exam is taking place, lies down on the table. A nurse places a small catheter (hose) in a vein of the arm to easily inject, if necessary, a contrast medium.
As the machine makes noise, it is sometimes proposed a headset that plays music.
He is put a bell in his hand to call if necessary during the examination. He is asked not to move during the entire examination and it is important to obtain quality images.