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Updated: Aug 4, 2025
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Testing of all Six Semicircular Canals with Video Head Impulse Test Systems
Published on: April 18, 2019
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Video Head Impulse Test: A Comparison and Analysis of Three Recording Systems
Mercy George1, Arif Ali Kolethekkat2, Perez Yoan1
1ENT Service, Centre Hospitalier Universitaire Vaudois (CHUV), Rue du Bugnon, 46, 1011 Lausanne, Switzerland.
Summary
This study compared three video head impulse test (vHIT) systems in healthy individuals. Synapsis offered the best balance of quality and time, showing good reproducibility for vHIT assessments.
Area of Science:
- Otolaryngology
- Neuroscience
- Vestibular System Research
Background:
- The video head impulse test (vHIT) is crucial for assessing vestibular function.
- Comparing the efficacy and reproducibility of different vHIT systems is essential for clinical practice.
Purpose of the Study:
- To compare the efficacy and reproducibility of three vHIT systems in healthy individuals.
- To evaluate system performance based on gain values, examination time, and ease of access.
Main Methods:
- A prospective randomized study involving 12 healthy individuals.
- vHIT tests were performed using three distinct devices.
- Gain values for the 3 semicircular canals (3SCCs) were recorded and analyzed.
Main Results:
- All tested vHIT systems demonstrated good reproducibility.
- EyeSeeCam showed a slightly overstated average gain (1.15).
- Otometrics had the longest average examination time.
- Synapsis offered the best quality/time ratio and accessibility.
Conclusions:
- vHIT system choice depends on examiner preference, experience, and desired balance of accuracy and efficiency.
- Synapsis emerges as a highly accessible and time-efficient option for vHIT.
- Reproducibility is a common strength across evaluated vHIT systems.
