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Doctor insights on: Does An Eeg Use Radiation

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Does an EEG use any radiation?

Does an EEG use any radiation?

No: Eeg uses an array of scalp electrodes to measure electrical activity generated by neurons in the brain, and does not require any radiation, dye, or strong magnetic fields. It is an extremely safe test. ...Read more

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Gamma Rays (Definition)

This is light of extremely short wavelengths typically produced either among the stars / in cosmic rays or by radioactive element decay. Gamma rays form the background of normal radiation in which we all live; it is substantially greater than the exposure we get from imaging scans or should get from ...Read more


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How reliable is an eeg?

VAGUELY ACCURATE: An EEG is a recording of brain electrical activity taken over the scalp, over about 45 minutes. This brief period may completely miss many paroxysmal events and provide a false negative/normal result. Work with direct electrodes implanted into brain have convincingly demonstrated far more pathology than external recordings. So, basically "hit or miss" issues, and better to clinically assess. ...Read more

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What is an electroencephalogram (eeg)?

EEG: An EEG is a test that records the various brain waves emitted from the brain. The test is done by placing tiny electrodes all around the head and scalp, and recording the electrical activity emitted by the brain and recorded by tracing the waves onto recording paper. ...Read more

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Can an EEG detect tumors?

Not directly: Eeg measures the activity of brain cells, not tumors. If the tumor is effecting a significant number of brain cells, the eeg may be abnormal. Some tumors cause enough irritation of the brain to cause seizures. These seizures can be located in the brain by eeg. Some tumors will have no effect on the eeg. ...Read more

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What are the characteristics of an asperger's eeg?

What are the characteristics of an asperger's eeg?

Aspergers: Here are 2 articles i found. http://www.sciencedaily.com/releases/2012/06/120625203010.htm http://www.Futurehealth.Org/populum/pageproduct.Php?F=asperger-s---add--differences-and-simila-092007-76.Html. ...Read more

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How does caffeine affect an EEG scan?

How does caffeine affect an EEG scan?

Very minimal: Caffeine is a stimulant, and if you are too awake, you may have trouble relaxing, and a desired sleep tracing may be difficult to obtain, BUT otherwise little if any profound effect. ...Read more

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Do people with dementia have normal eeg's?

Do people with dementia have normal eeg's?

Generalized slowing: People with most types of dementia would have eegs with generalized slowing. There can also be some seizure activity but not universally. ...Read more

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What does an EEG diagnose that an MRI can't?

What does an EEG diagnose that an MRI can't?

Brain activity: Eeg measures brain electrical activity by using scalp electrodes. Eeg is more sensitive and gives a better global look at brain function. Typical MRI does not assess brain function. Functional MRI can indirectly measure brain activity also by measuring oxygen delivery to portions of the brain. ...Read more

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Please answer me. Is a migraine shown on an eeg?

See below: An electroencephalogram (eeg) is not used to confirm the diagnosis of a migraine. Proper history, examination, and ancillary tests are employed to help confirm a diagnosis of migraine. Please consult with a neurologist, if you are experiencing migraines. Hope that helps! ...Read more

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Are an EEG test and a sleep study test different?

Are an EEG test and a sleep study test different?

Yes: Eeg records brain activity alone (save for one lead to record the heart), while sleep studies also record leg movement, breathing, oxygen levels. ...Read more

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Could you explain what is an MRI or EEG like exactly?

Structure/function: An MRI looks at the structure of the body by using magnetic fields. You lie quietly on a table inside a donut-shaped magnet. Sometimes IV contrast is used to bring out the detail in certain structures. An eeg looks at brain function. Wires are placed on the scalp using an adhesive paste, and you lie quietly while an machine records the electrical signals generated by brain activity. ...Read more

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What test will show brainstem activity other than eeg.

None: No test shows activity directly. Some tests can be used to assess certain functions of the brainstem. This includes vestibular testing, some forms of autonomic testing, eye movement testing, among others. ...Read more

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Will my daughter need to have an EEG if she has a cold?

Hard to say: You offer no information that would make me believe your daughter would need an eeg, with ot without a cold. If you have specific information that can be reviewed, please start over and submit it for review. Site questions are not linked so you must start over with basic information and a specific question. ...Read more

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Possible reasons for abnormal EEG results for my toddler?

Possible reasons for abnormal EEG results for my toddler?

Many possibilities: Eeg is helpful inmany ways. Focal slowing, generalized slowing, focal seizure activity, generalized seizure activity are among the possible reasons an eeg might be considered abnormal. After age 2 the eeg of a child is similar to an adult in many ways. ...Read more

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What does an EEG have to do with getting ritalin (methylphenidate)?

What does an EEG have to do with getting ritalin (methylphenidate)?

Ritalin (methylphenidate): We normally run ekg (heart tracing) as baseline measurement to check heart rate/rhythm, as with all stimulants. ...Read more

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Can a EEG biofeedback system be used at home for cognitive training?

Home use of EEG : Is not recommended because proper use of an eeg system requires extensive training & sophisticated & carefully calibrated equipment. It would be much preferable to find a certified professional through www.Bcia.Org or www.Aapb.Org. ...Read more

Dr. Jeffrey Cohen
394 doctors shared insights

Eeg (Definition)

An electroencephaolgram (eeg) is a test that uses wires on the scalp to measure electrical activity produced by the brain. It is used to assess cerebral activity, and can be very helpful in the diagnosis and treatment of seizures as well ...Read more