MRI of the Brain
- What is an MRI of the brain?
- Why might my doctor recommend an MRI of the brain?
- How should I prepare for my MRI of the brain?
- How is an MRI of the brain performed?
- What type of equipment is used for an MRI of the brain?
- How will I get the test results for my MRI of the brain?
What is an MRI of the brain?
Magnetic resonance imaging, or MRI, is a method of producing detailed pictures of organs and body tissues by exposing a patient to radio waves in a strong magnetic field. The field is measured and analyzed by a computer, which forms two or three-dimensional images that may be viewed on a TV monitor. Because it uses radio waves and a magnetic field rather than x-rays, there is no exposure to radiation. An MRI of the brain provides high quality two and three-dimensional images that can show both surface and deep brain structures with high clarity and accurate anatomical detail. An MRI is used to detect changes that occur in these structures over time.
Why might my doctor recommend an MRI of the brain?
If you experience seizures, memory loss, hearing loss, or dizziness your doctor may recommend an MRI of the brain to detect, diagnosis, and/or assess tumors, multiple sclerosis, stroke, dementia, hemmorrhage, cerebal palsy, or meningitis in addition to other diseases of the brain. An MRI of the brain also is useful in post-operative evaluations.
How should I prepare for my MRI of the brain?
On the day of the procedure, wear comfortable clothing and try to relax. Before the precedure begins, you will be asked if you have any metal medical equipment in your body such as a pacemaker, intrauterine device (IUD), implanted port, or infusion catheter. Due to the strong magnetic fields created by MRI, these devices may interupt the procedure. Also, make sure to notify the technologist if you might be pregnant. Before the procedure begins you also will be asked to remove any metal jewelry or metal external objects as they may interfere with the procedure.
How is an MRI of the brain performed?
You will be asked to lie on your back on a cushioned table. A device called a coil will be placed on the area to be scanned. Coils are antennas used in every scan to help image the area of interest. Different coils are designed for different parts of the body and will conform to your shape as you are being imaged. You will not experience any discomfort from the coil. After you are positioned, the table will move under the magnet. The radiologic technologist will leave the room once the procedure begins to control the equipment and perform your scan. You will be able to communicate with the technologist through an intercom during the procedure. The machine will make a slight rapping sound as the images are being taken. In between scans the machine is quiet. The process takes between 30 and 45 minutes and is painless.
What type of equipment is used for an MRI of the brain?
An MRI can be performed in either a closed or an open MRI scanner. A closed scanner requires you to lie in a clylinder-like compartment. An open MRI is ideal for claustrophobic, pediatric, elderly, and large patients. This procedure uses a scanner that is less confining. Both types of scanners can provide your physician with accurate and detailed images of your brain.
How will I get the test results from my MRI of the brain?
The results of your MRI are read by the board-certified radiologists of Professional Radiology, Inc. A detailed report will be sent to your referring physician within 24 hours.
