Experiment 2. As good performance of VG on vHIT compared to Oto
and ESC systems.
To test the efficiency of the new goggle that could record from either
eye and further evaluate performances of the new vHIT system,
VertiGoggles ZT-VNG-I (VG), we conducted a two-center clinical project
in comparison to the longstanding systems, OtometricsICS impulse (Oto)
and EyeSeeCam (ESC). Given that the experiments were carried out
separately, we applied the t-test to analyzed our data (Figure 3 and
Table S1). First of all, there was no significant difference found in
between the systems on the lateral semicircular canals, which indicated
the stability and reliability of this plane across systems. However,
differences showed up on the vertical canals. For the RALP plane, the
VOR gain were similar between VG and Oto. But VG showed significant
difference in comparison to ESC that the gain was closer to 1 with
smaller variations. Furthermore, for the LARP plane, three systems
performed similarly on the LA. But the results of VG were different from
either Oto or ESC on the RP canal. The VOR gain we obtained from VG was
closer to 1 with less standard deviations in either comparison. Our data
indicated three systems has comparable performance in vHIT. Besides,
with the convenience provided by the new goggle, the VOR gain from RP
canal is recorded even better.