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
effect of topiramate on EEG - CORRECT ANSWER-decreased alpha
increased theta and delta
highest incidence of epilepsy - CORRECT ANSWER-over 60 years age group