Exam 1 - Chapter 4

Question 1

brain imaging technique that makes use of an applied magnetic field around the head and brief and repeated bursts of radiofrequency (RF) wave exposure

Answer 1

magnetic resonance imaging (MRI)

Question 2

means of indexing dynamic changes in blood flow as indicated by varying levels of oxygen in the brain

Answer 2

functional MRI (fMRI)

Question 3

means of studying electrical potential differences between two or more points on the scalp

Answer 3

electroencephalography (EEG)

Question 4

following injection of radioisotopes into the bloodstream, enables studies of regional cerebral blood flow (rCBF)

Answer 4

positron emission computed tomography (PET
single photon emission computed tomography (SPECT)

Question 5

means of visualizing the arterial blood supply to the cortex and the degree of collateral circulation occurring in cases of occlusion

Answer 5

cerebral angiography

Question 6

technique for measuring energy transmission through tissue, enabling images of “slices” of brain tissue recorded at various positions and angles via a rotating x-ray tube

Answer 6

computed axial tomography (CAT or CT)