Magnetic resonance imaging (MRI) is a sophisticated diagnostic method that uses strong magnetic fields and radio waves to create detailed images of internal organs and tissues. This safe and non-invasive method allows doctors a precise insight into the structure of the brain, spine, joints, soft tissues and other vital organs. Magnetic resonance imaging is often used to diagnose a variety of medical conditions, including injuries, tumors, infections, and neurological disorders. Unlike CT scanners and X-ray machines, magnetic resonance does not use ionizing radiation in its work, so there is no negative radiation and it can be done as often as you like.
The strong magnetic field created by an MRI causes the atoms in your body to align in the same direction. Radio waves are then sent from the MR machine and move these atoms from their original position. When the radio waves are turned off, the atoms return to their original position and send back radio signals. These signals are received by a computer and converted into an image of the part of the body being examined. This image is displayed on the preview monitor.
MRI can be used instead of computed tomography (CT) when studying organs or soft tissues. Magnetic resonance imaging is better at differentiating between types of soft tissue compared to CT, which usually images bones better.
Because no ionizing radiation is used, there is no risk of radiation exposure during an MRI scan.
New applications for MR have contributed to the development of additional magnetic resonance technology. Magnetic resonance angiography (MRA) is a procedure used to assess blood flow through the arteries. MRA can also be used to detect aneurysms in the brain and vascular malformations—abnormalities of blood vessels in the brain, spinal cord, or other parts of the body.
When you call to make an appointment, it is extremely important that you let us know if any of the following apply to you: You have a pacemaker or have had heart valve replacement; You have any type of implantable pump, such as an insulin pump; You have coils, filters, stents or clips; You are pregnant or think you are pregnant; Have you ever worked with metal (for example, as a grinder or welder); You have metal fragments anywhere in your body; You are unable to lie down for longer than 20 minutes; You have kidney problems or have previously had an allergic reaction to contrast media;
If you are doing an MRI of the abdomen and/or pelvis, you should not eat 4 hours before the examination, and if you are doing an MR enterography 8 hours before the examination (for enterography, there is also additional preparation). If the examination requires the use of a contrast medium, it is necessary to perform blood tests for urea and creatinine.