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Posts for tag: Electroencephalogram

By Winchester Neurological Consultants
November 21, 2022
Category: Medical

Neuroimaging refers to a variety of medical techniques that can produce an image of the brain that your doctor can use to diagnose or treat many different types of brain conditions. Of these types of neuroimaging techniques, the most commonly used types are MRI, CT, and EEG tests, and depending on what your doctor is seeking to treat or diagnose you may be prescribed some or all of them or other similar types of neuroimaging. Learn more about what you can expect from neuroimaging tests by reaching out directly to your local experts at Winchester Neurological Consultants in Winchester, VA.

Electroencephalogram (EEG)

During an EEG test, you are either seated or told to lie down on a bed as electrodes are attached to your scalp. These electrodes are either individual discs that are attached to your scalp using a special paste or you are made to wear a cap that contains the electrodes.

Once recording has begun you'll be told to stay very still, but it is stopped periodically so you can relax and reposition.

The electrodes are used to measure your brainwaves, that is, the electric activity of your brain, which can be used to assess a number of brain disorders.

Computed Tomography (CT)

A CT scan is a computerized imaging procedure that uses x-rays to examine your brain, often used in the treatment of tumors, lesions, and injuries, among many other similar issues.

Contrast media is a substance that is introduced into your body to improve the results of CT scans, for brain scans you'll usually take the contrast media both orally and through an IV. If your doctor requires the use of contrast media then you'll be advised against eating prior to the treatment, you'll be given specific instructions about what to eat and when, or if you suffer from diabetes then the instructions will also vary.

You'll lie on a flat surface and be told not to move during the scan, you'll be in constant communication with your radiologist so you can notify them of any discomfort.

Magnetic Resonance Imaging (MRI)

Because an MRI uses magnetic fields to construct a three-dimensional image of your brain you'll be advised against wearing anything metallic and asked about anything metal in your body due to a medical procedure.

What you can expect is very similar to a CT scan, although you may not require a media contrast for some machines, it depends both on the equipment and what your doctor is trying to diagnose.

Neuroimaging in Winchester, VA

If you are in need of neuroimaging in Winchester, VA, your local professionals at Winchester Neurological Consultants may be able to help, arrange a consultation by dialing (540) 667-1828.

By Winchester Neurological Consultants
July 12, 2022
Category: Medical
Tags: EEG   Electroencephalogram  

An electroencephalogram, commonly referred to as an EEG, is a diagnostic test for detecting abnormalities in the electrical activity of the brain or in the brain waves. The test aids in diagnosing various brain disorders, such as epilepsy. The experienced and caring team of physicians at Winchester Neurological Consultants in Winchester, VA, perform EEG testing and can determine if you need one.

When an EEG is Needed

An EEG is needed when any type of brain disorder is suspected. Doctors use the data collected during the test to identify factors influencing brain activity and diagnose specific disorders. The experienced doctors who perform EEG tests at our Winchester, VA, neurological practice will evaluate your symptoms and determine if you need an EEG.

Brain disorders and conditions that can be diagnosed through EEG testing include:

  • Epilepsy and other seizure disorders
  • Brain lesions due to stroke or tumors
  • Certain types of psychoses
  • Narcolepsy (a sleep disorder)
  • Alzheimer’s disease

In addition to aiding in the diagnosis of certain conditions, an EEG test can also be used for other purposes. It helps doctors monitor the flow of blood to the brain during surgery. An EEG can also provide information about the brain’s overall electrical activity, which is useful in evaluating trauma or the extent of brain damage in a patient who is comatose.

The Electroencephalogram (EEG) Procedure

EEG testing can be performed either in the hospital or as an outpatient procedure, depending on the patient’s condition and other factors. The procedure is painless and all you need to do is lie back, relax, and be still. Several small metal electrodes will be placed on your scalp. Thin wires attached to the electrodes transmit information about your brain activity during the EEG test. The doctor or technician performing the test will be able to observe the data on a computer screen.

An EEG test can take anywhere between 45 minutes and two hours, on average. It is necessary to remain still throughout the procedure in order to gather information about the brain’s activity while you are at rest. However, the doctor or technician might also introduce stimuli later to observe brain activity when not at rest. For example, data might be gathered while you are exposed to bright, flashing lights or while you breath quickly and deeply for several consecutive minutes.

The information gathered during the test can reveal what might be affecting the brain. For instance, an EEG test produces rapid spiking waves on screen when seizure activity is present, which is indicative of epilepsy. If there is a lesion on the brain from a tumor or stroke, the EEG test might show unusually slow waves.

An EEG is an extremely useful and effective test for diagnosing a diverse range of brain conditions and disorders so that an appropriate treatment plan can be developed. For EEG testing in Winchester, VA, schedule a consultation with one of our knowledgeable and caring providers by calling Winchester Neurological Consultants at (540) 667-1828.