System Setup - Interacoustics Eclipse Additional Information

Eclipse Additional Information Page 111
5.4

System setup

There are two default test protocols for cVEMP (cVEMP 500Hz TB and cVEMP 1kHz TB) and two default
test protocols for the oVEMP (oVEMP 500Hz TB and oVEMP 1kHz TB). The protocols can be viewed and
modified from the System Setup.
1. Stimulus properties
A tone burst or a click can be used for VEMP testing. In the System Setup the tone burst is set as default. A
Click will create different latencies relative to tone burst stimuli. Click stimuli typically present a waveform
with latencies at 13 and 23ms labelled P1 and N1, respectively. These latencies are typically different (later)
for tone burst stimuli. Tone burst stimuli yield larger VEMP responses than clicks of the same subjective
loudness, with 500Hz being generally accepted as the most efficient stimulus in this regard.
2. VEMP test parameters
The VEMP setup is part of the special tests in the System Setup. It is possible to set the EMG Controlled
stimulus/recordings, enable or disable the Patient's EMG monitor, and enable or disable EMG scaling.