MRI is a non-invasive medical technique that provides a 3D image of a scanned section of the body. An MRI of the brain can diagnose medical conditions affecting the area, but may cause discomfort for claustrophobic patients. There are two types of MRI machines, and some scans require an injection of a contrast solution. It is important to remain still during the test, and an MRI of the brain can diagnose conditions such as cancer, aneurysms, and meningitis.
MRI, or MRI, is a diagnostic medical technique that can provide a three-dimensional image of a scanned section of the body. An MRI of the brain is often done to get clear images to determine or rule out possible medical conditions affecting the area. MRI of the brain is usually painless, but it can cause discomfort for claustrophobic patients.
There are two main types of MRI machines used to perform an MRI of the brain. A standard machine will look like a long thin tube. The patient lies down on a rolling stretcher and slides forward into the machine. An open MRI machine is similar, but has open sides instead of a tube. For those with severe claustrophobia, ask if the test can be conducted on an open MRI machine. A doctor may also prescribe a sedative for someone with severe anxiety about enclosed spaces.
Some MRI scans require a patient to receive an injection of a solution that will temporarily stain the scanned area, making the contrast easier to see. Be sure to mention any known medical or food allergies, as the contrast solution may contain allergens. Braces, implants, pacemakers, and metal pins in the body can react badly to an MRI, as the machine is essentially a giant magnet. Be sure to give your doctor a thorough medical history so they can determine any problems with an MRI of the brain.
During the test, it is important to remain completely still and to follow all directions. The doctor or MRI technician is usually in a control room, but most MRI machines have a microphone system that allows both the patient and the doctor to communicate. When the test is in progress, the patient may hear clicks indicating that the scans are running. A feeling of increased heat in the head is typical, but pain, dizziness, or nausea should be reported immediately. Typically, an MRI of the brain can take anywhere from 30 minutes to two hours.
An MRI of the brain can be done for many reasons, both mild and severe. People with persistent headaches, dizziness or blurred vision, or a past history of brain cancer may have an MRI of the brain simply to identify the root of a problem. Some conditions that can be diagnosed with an MRI of the brain include cancer, aneurysms, blood vessel defects, hydrocephalus, meningitis, or damage to the optic nerves. A doctor may also order an MRI scan after a serious injury or automobile accident to check for intracranial hemorrhages or other forms of brain damage.
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