and CORRECT Answers
2 basic montages used during electrode screening - CORRECT ANSWER- 1) numeric order
bipolar
2) referential
imaging that measures brain synchronicity - CORRECT ANSWER- coherence imaging
type of software helpful for quantifying seizures in ICU/EEG - CORRECT ANSWER-
trending
1st consideration when guarding against skin breakdown - CORRECT ANSWER- electrode
type
main MEG imaging techniques - CORRECT ANSWER- -single current dipole (ECD)
-current density/distribution (MR-FOCUSS)
-beamformer (spatial filter)
MRI safe electrodes guard against - CORRECT ANSWER- magnetic influence on electrodes
strengths of MEG - CORRECT ANSWER- -correlates function and anatomy
-millisecond temporal resolution
-millimeter spatial resolution
-non-invasive
Phase II EEG quality is greatly improved by implantation of - CORRECT ANSWER- grids
for reference and ground
only imaging technique that is useful for determining seizure focus - CORRECT ANSWER-
SPECT
, MEG detects signals generated by - CORRECT ANSWER- pyramidal neurons
weaknesses of MEG - CORRECT ANSWER- -expensive
-requires magnetically shielded room
-requires helium
True or False: a pedometer is a type of MEG detector - CORRECT ANSWER- false
ACNS recommendation for the time frame of physician interpretation of LTM - CORRECT
ANSWER- read data collection after it is complete
cooling below 32 degrees C increases risk of - CORRECT ANSWER- -focal cerebral deficit
-infection
-coagulopathy
-arrhythmia
unable to form and store new memories - CORRECT ANSWER- anterograde amnesia
local networks - CORRECT ANSWER- -least expensive
-data cannot be viewed remotely
-are like most EMU setups
vertical eye movements will be out of phase with what - CORRECT ANSWER- RIO/LIO
effect of benzos on EEG - CORRECT ANSWER- increased rhythmic fast (25-35Hz)
decreased alpha voltage
Effect of Carbamazepine on EEG - CORRECT ANSWER- mild alpha slowing
random theta