The horizontal computerized rotational impulse test.
Whole-body impulsive rotations were used to overcome several limitations associated with manual head impulse testing. A computer-controlled rotational chair delivered brief, whole-body, earth-vertical axis yaw impulsive rotations while eye movements were measured using video-oculography. Results from an unselected group of 20 patients with dizziness and a group of 22 control subjects indicated that the horizontal computerized rotational head impulse test (crHIT) is well-tolerated and provides an estimate of unidirectional vestibulo-ocular reflex gain comparable to results from caloric testing. This study demonstrates that the horizontal crHIT is a new assessment tool that overcomes many of the limitations of manual head impulse testing and provides a reliable laboratory-based measure of unilateral horizontal semicircular canal function.
['Furman|Joseph M|JM|', 'Shirey|Ian|I|', 'Roxberg|Jillyn|J|', 'Kiderman|Alexander|A|']
D000054:Acceleration D000328:Adult D003936:Diagnosis, Computer-Assisted D004244:Dizziness D005133:Eye Movements D005260:Female D064087:Head Impulse Test D006801:Humans D008297:Male D008875:Middle Aged D012027:Reflex, Vestibulo-Ocular D012399:Rotation D012665:Semicircular Canals D015837:Vestibular Diseases D014724:Vestibular Function Tests D055815:Young Adult
head impulse testing Vestibulo-ocular reflex semicircular canal