How to Read a Brain Mri White Spot in Back of Head
MRI scans may be carried out for a variety of reasons, and will be accordingly targeted at specific zones of the body. Scans of the brain and spinal cord, for instance, not only look for brain and spinal cord injuries but also for signs of blood vessel damage, cancer, multiple sclerosis and stroke. Scans of the bones and joints are also used to look for signs of cancer, as well as bone infections, joint damage and so on. Doctors may also carry out an MRI of the heart and blood vessels to look for blocked blood vessels and heart problems, such as damage or disease.
Organ-specific MRI scans may also be carried out, for example to check the liver, kidneys and pancreas. Men might require an MRI scan for prostate cancer, while women might require scans of the breasts or ovaries. Here's everything you need to know about MRI scans–from what they are to what to expect.
MRI scanner
MRI scans may be carried out for a variety of reasons and will be accordingly targeted at specific zones of the body. Scans of the brain and spinal cord, for instance, not only look for brain and spinal cord injuries but also for signs of blood vessel damage, cancer, multiple sclerosis and stroke. Scans of the bones and joints are also used to look for signs of cancer, as well as bone infections, joint damage and so on. Doctors may also carry out an MRI of the heart and blood vessels to look for blocked blood vessels and heart problems, such as damage or disease.
Organ-specific MRI scans may also be carried out, for example, to check the liver, kidneys and pancreas. Men might require an MRI scan for prostate cancer, while women might require scans of the breasts or ovaries. Here's everything you need to know about MRI scans–from what they are to what to expect.
MRI stands for magnetic resonance imaging. Similar to an X-ray or CT scan, it is used to create detailed and medically useful images of what's going on inside your body. Unlike an X-ray or CT scan, however, an MRI scan does not make use of radiation. Instead, it uses strong magnets and radio waves to produce images on a computer.
As mentioned, there are various uses for an MRI scan. Mostly, though, they all rely on the same type of basic magnetic resonance. An exception is a functional MRI (fMRI), which is used to image blood flow in the brain. This kind of scan is used extensively by neurologists for mapping the brain and identifying which parts are activated by different types of stimulus or activity. An fMRI may also be used to detect problems with the brain and determine whether surgery is required, such as for epilepsy or tumors.
How To Prepare for an MRI Scan
Because of the powerful magnetic field involved, patients mustn't bring any metal into the scan. There are no exceptions to this rule. Obviously, some metal–such as jewelry and body piercings–is easier to remove than others. But metal implants, from
What to Expect Before an MRI Scan
Patients are usually asked to arrive at least 30 minutes before their MRI scan is scheduled to begin. You may need this time to check in with the receptionist and complete an MRI screening form. You will also be required to change into a hospital gown
What to Expect During an MRI Scan
The MRI scan is likely to last roughly 45 minutes to an hour for each body part that needs imaging. You will need to remain flat on your back and motionless throughout, and you may also have to hold your breath for up to 30 seconds while certain body p
What to Expect After an MRI Scan
If you have been fitted with an IV for MRI contrast dye, this will be removed after the scan. Remain vigilant, though, as you may experience an allergic reaction. It's rare, but symptoms include rash, hives and shortness of breath. If you experience any o
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How to Read a Brain Mri White Spot in Back of Head
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