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MRI
Magnetic resonance imaging (MRI) is a non-invasive imaging method that uses radio waves and a powerful magnetic field rather than X-rays to produce clear and detailed images of virtually any part of the body. MRIs are great for looking at all the organs and soft tissue parts of the body that X-rays don't see. This procedure has greatly improved the ability to see normal and diseased tissue. Because the MRI scanner makes a lot of noise during the imaging process, every patient is provided with hearing protection, usually in the form of ear plugs. The patient will still be able to hear the noise, but it will be at a safe level.
It is vital for the patient to be able to remain still in one position during the MRI scan. Most MRI scans take about 45 minutes. Sometimes sedation is used to accomplish this, especially with young pediatric patients. Sedation also may be used for extremely claustrophobic patients; however, most patients are able to successfully complete an MRI without sedation.
Because MRI uses a powerful magnet, it is important that the technologists are aware of any metallic objects that are present in each patient’s body. Therefore, all patients are required to complete an MRI screening form with a detailed surgical and medical history prior to their exam.
What does it look like? The MRI scanner is essentially a large tunnel that is open on each end. The body part being imaged must be placed in the center of the scanner’s bore. This typically leaves some portion of the patient’s body outside of the bore.
