brain scan


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Related to brain scan: PET scan

brain scan

n.
A scintigram of the brain, used to identify cerebral blood flow and to detect intracranial masses, lesions, tumors, or infarcts.

brain scan

Etymology: AS, bragen + L, scandere, to climb
a diagnostic procedure used to image the brain. Common modalities include CT, MRI, and PET. Imaging can be done with a radioisotope used to localize and identify intracranial masses, lesions, tumors, or infarcts. Intravenously injected radioisotopes accumulate in abnormal brain tissue and are traced and photographed by a scintillator or scanner. The nature and rate of accumulation of radioisotopes in pathological tissue are diagnostic of some lesions. Compare computed tomography. See also isotope, radioisotope.

brain scan

Imaging
CT scan of the brain.

Nuclear medicine 
Brain scintigraphy, see there.

brain scan

Any procedure for imaging the structure and function of the brain.
See also: scan

Patient discussion about brain scan

Q. I'm worried if she has ADHD. Is there any MRI or brain scan test to diagnoses the problem? My daughter Elba is 15. She regularly goes to school but often forgets to do daily activities. I'm worried if she has ADHD. Is there any MRI or brain scan test to diagnoses the problem?

A. Although in general practice MRI is not carried out to diagnose ADHD, the studies have shown that the ADHD brain has considerably less activity than does a normal brain when MRI's are compared. Stimulant drugs increases the chemical activity level, which decreases the symptoms. I shall suggest you to consult a physician specialized in this area.

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References in periodicals archive ?
It showed that such mind reading could be possible by using brain scans, which would identify certain thoughts with certain words.
While waiting for the brain scan I was standing holding dad's hand and he pulled me down to him and said, "Sam, I love you very much".
Experts are also looking at whether a different type of brain scan might instead be used to detect amyloid.
On the eve of the fight the British Boxing Board of Control revoked his license stating a brain scan had revealed a 2cm cyst on his brain.
com "I didn't even believe he was 16 at the time, but he signed for me on his 18th birthday only to fail his brain scan.
But for legal reasons, he and other participants on the Channel 4 programmes had to take the drug alone and then sit though tests and a brain scan.
A TEENAGE girl was taken to hospital for a brain scan in the early hours of this morning after receiving head injuries during an assault in a 24-hour store.
Interpreting a type of brain scan called positron emission tomography (PET) is reliable for diagnosing Alzheimer's disease (AD), but the modality is prone to error when diagnosing another common form of degenerative dementia, according to researchers at University of Texas in Dallas.
Summary: Children could in future be screened for autism using a 15 minute brain scan developed by British scientists.
SCIENTISTS have devised a brain scan to detect autism in adults, doctors reveal today.
CLASH VIERI, who failed to complete the course in a 575m final at Romford on Friday, suffered a seizure during the race and is to undergo a brain scan before any track comeback is considered, writes Jonathan Kay.
Using the model, the scientists successfully used the brain scan to predict which photo one volunteer was looking at 92 percent of the time.