Ecleris VNG Plus - Page 4

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CALIBRATION ..................................................................................... 25
STANDARD .......................................................................................................... 25
HEAD CALIBRATION ............................................................................................ 26
Active calibration: AHR ....................................................................................... 27
Passive Calibration: VHIT .................................................................................... 27
DATA ADQUISITIONS .......................................................................... 29
Registers ............................................................................................................. 29
Warnings ............................................................................................................. 30
Demonstration .................................................................................................... 31
Performing the test ............................................................................................ 32
Using the Footswitch .......................................................................................... 32
Spontaneous Nystagmus .................................................................................... 32
Gaze .................................................................................................................... 33
Saccades ............................................................................................................. 33
Smooth Pursuit ................................................................................................... 33
Optokinetic (OKN)............................................................................................... 33
Active head rotation (AHR) ................................................................................. 33
Video head impulse test (vHIT) .......................................................................... 34
Supine ................................................................................................................. 34
Dix Hallpike ......................................................................................................... 35
Calorics ............................................................................................................... 35
ANALYSIS GENERAL ............................................................................ 37
Spontaneous Nystagmus .................................................................................... 39
Gaze .................................................................................................................... 39
Saccades ............................................................................................................. 39
Smooth pursuit ................................................................................................... 40
Optokinetic (OKN)............................................................................................... 40
Active head rotation (AHR) ................................................................................. 40
Video head impulse test (VHIT) .......................................................................... 41
Passive calibration of the head (VHIT) ................................................................ 41
Supine ................................................................................................................. 42
Dix Hallpike ......................................................................................................... 42
Calorics ............................................................................................................... 42
REPORT .............................................................................................. 44
EDIT ANALYSIS .................................................................................... 45
Nystagmus beat .................................................................................................. 45
Cefalic impulse count (VHIT) .............................................................................. 47