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.

More discussions about brain scan
References in periodicals archive ?
London offers the best service, with 58 per cent of patients receiving a brain scan in 24 hours, falling to 37 per cent for those in the east of England.
He said: "The following morning I was taken for a brain scan and that was a very scary time.
David was taken to hospital and they did a brain scan which was clear.
With this you can do a brain scan in practically six seconds rather than six minutes,'' he said.
We're partnering with numerous companies to develop innovative products for countless patient situations where a brain scan is needed.
Using computer software to analyse the brain scan data, the researchers were able to recognise distinct patterns that appeared to reflect what the individual was thinking.
The Board of Control rejected the fight with Buster Denis as former British champion McKeever's brain scan failed to be passed in time.
ARSENAL midfielder Freddie Ljungberg hopes to begin training again next week, after learning a brain scan to determine the cause of his severe migraines showed nothing seriously wrong.
The Ulsterman says he did not collapse, nor require a brain scan, following his points defeat to Scott Harrison in a WBO featherweight title challenge in Glasgow on Saturday night.
IT'S purgatory for Birmingham bank worker, Darren Sweeney, to go along to shows thinking that he may never box again after failing a brain scan earlier this year.
in 1966 - learned of the tumor after a brain scan during her annual physical exam Feb.
Small invented the first brain scan to show the physical evidence of Alzheimer's disease and brain aging in living patients.