GE CARESCAPE - BIS measurement on the monitor screen; Using the BIS measurement; Selecting the BIS waveform size; Selecting the EEG sweep speed

Bispectralindex
BISmeasurementonthemonitorscreen
●Suppressionratio(SR)numberindicatesthepercentageofsuppressed(atline)
EEGdetectedoverthelast63seconds
●Bargraphs:
￭SignalQualityIndex(SQI):thequalityoftheEEGsignal.NOTE:WhentheSQIisin
therange15%to50%(low),theBISnumberisdisplayedingray
￭Electromyograph(EMG):theabsolutepowerinthe70Hzto110Hzfrequency
band
UsingtheBISmeasurement
SelectingtheBISwaveformsize
ThissettingdeterminesthemaximumdrawingscaleforBISwaveforms.
1.Pressthe
modulekeyorselecttheBISparameterwindow.
2.SelecttheSetuptab.
3.SelectavaluefromtheScaleµVlist.
SelectingtheEEGsweepspeed
ThissettingdeterminesthedrawingspeedfortheEEGwaveform.
1.Pressthe
modulekeyorselecttheBISparameterwindow.
2.SelecttheSetuptab.
3.SelectavaluefromtheEEGSweepSpeedlist.
Thesmallerthevalue,theslowerthesweepspeed.
NOTE
ThissettingisavailableinBIS,EEGandEntropysetups.
Regardlessofwhereyouchangeit,itwillaffectallthree
parameters.
SelectingtheBISsmoothingrate
SmoothingrateaffectstheappearanceoftheBIStrendandtheBISvalue.It
determinestheamountofartifact-freedatathatisrequiredforcalculatingtheBIS
value.
1.Pressthe
modulekeyorselecttheBISparameterwindow.
2.SelecttheSetuptab.
3.SelectavaluefromtheSmoothingRatelist.Thebiggerthevalue,the“smoother”
thetrend.
SettingBISlters
WithBISltersyoucanlteroutdisturbancesfromtheEEGsignalandimprovethe
signalquality.
1.Pressthe
modulekeyorselecttheBISparameterwindow.
2062971-001CARESCAPEModularMonitors397