CT scan is a series of ____________ passed through the head
CT scans end up as what type of image?
Cross section - shows structure not function
PET Scan uses what to see?
Radioactive material. (oxygen/flourine) When the material breaks down it gives off a Positron and a neutron. When a positron and an electron mate, a gamma ray is born and a gamma ray detector picks this up and provides an image of brain activity (adv.) a dissadvantage is the fact we just swallowed a radioactive material. EXTREME
MRI uses what to create a picture?
Radio frequency signals
Adv- No x-rays or radioactive material
Disadv- People who are claustrophobic or who have metallic devices can not recieve an MRI
fMRI Detects ____________ to ____________. Provides an _____________ and a ___________ view of the brain
Detects changes of blood flow to particular areas of the brain. It provides an anatomical and fundimental view of the brain
Angiography involves a series of _________ after a ________is injected into the blood stream. It provides an image of the _________ of the brain.
Involves a series of x-rays after a dye is injected into the blood stream. Provides an image of the blood vessels of the brain.