Magnetic resonance imaging (MRI) is a diagnostic tool used to produce images of the inside of the body. MRI uses a strong magnetic field and radio waves to create detailed images of the organs and tissues. MRI is used to diagnose a variety of conditions, including cancer, heart disease, and neurological disorders. What is an MRI scan used to diagnose? An MRI scan is used to diagnose a variety of conditions, including tumors, herniated disks, and other abnormalities of the spine and brain.
How is an MRI done?
An MRI uses a large magnet, radio waves, and a computer to take detailed pictures of the inside of your body. The magnet is used to align the hydrogen atoms in your body. The radio waves are used to knock the hydrogen atoms out of alignment. The computer then uses the radio waves to create a detailed picture of the inside of your body. Why can't I drink water before an MRI? There are a few reasons why you might not be able to drink water before an MRI. First, if you are having an MRI of the brain, it is important to avoid swallowing any water before the scan, because it can interfere with the images. Second, if you are having an MRI of the abdomen or pelvis, you will need to fast for several hours before the scan, to ensure that your stomach is empty. Finally, if you are having an MRI with contrast, you will need to avoid drinking anything for at least an hour before the scan, to prevent the contrast from causing nausea. How long does an MRI take? An MRI can take anywhere from 30 minutes to an hour, depending on the machine and the type of scan being performed. Why would a doctor order an MRI? There are many reasons why a doctor might order an MRI. For example, if a patient has suffered a traumatic injury, an MRI can be used to check for internal bleeding or damage to the organs. Additionally, MRI can be used to diagnose conditions such as cancer, Alzheimer's disease, and multiple sclerosis.