Video Head Impulse Testing (vHIT) and the Assessment of Horizontal Semicircular Canal Function
نویسندگان
چکیده
منابع مشابه
The Video Head Impulse Test (vHIT) Detects Vertical Semicircular Canal Dysfunction
BACKGROUND The video head impulse test (vHIT) is a useful clinical tool to detect semicircular canal dysfunction. However vHIT has hitherto been limited to measurement of horizontal canals, while scleral search coils have been the only accepted method to measure head impulses in vertical canals. The goal of this study was to determine whether vHIT can detect vertical semicircular canal dysfunct...
متن کاملThe Video Head Impulse Test (vHIT) of Semicircular Canal Function – Age-Dependent Normative Values of VOR Gain in Healthy Subjects
BACKGROUND/HYPOTHESIS The video Head Impulse Test (vHIT) is now widely used to test the function of each of the six semicircular canals individually by measuring the eye rotation response to an abrupt head rotation in the plane of the canal. The main measure of canal adequacy is the ratio of the eye movement response to the head movement stimulus, i.e., the gain of the vestibulo-ocular reflex (...
متن کاملApplication of the video head impulse test to detect vertical semicircular canal dysfunction.
OBJECTIVE The video head impulse test (vHIT) is a useful clinical tool to detect semicircular canal dysfunction. However, so far, vHIT has been limited to measurement of the function of the horizontal semicircular canals. The goal of this study was to determine if vHIT can detect vertical semicircular canal dysfunction. STUDY DESIGN Horizontal and vertical eye movements were recorded in respo...
متن کاملThe Role of Predictability in Saccadic Eye Responses in the Suppression Head Impulse Test of Horizontal Semicircular Canal Function
Background In the suppression head impulse paradigm (SHIMP) vHIT protocol, the participant is instructed to follow with his gaze a mobile target generated by a laser placed on the participant's head. Recent studies have reported that the refixation saccade latencies are in relation with the time evolution of the vestibular dysfunction in both (standard and SHIMP) procedures. We hypothesized tha...
متن کاملAssessment of Semicircular Canal Function using vHIT in Adults with Congenital Hearing Loss
Introduction: vHIT test to assess the functioning of three semicircular canals. Objective: This study was designed to objectively assess the functioning of the three semicircular canals in individual with severe to profound sensorineural hearing loss using vHIT respectively. Methods: Twenty adult participants (40 ears) having severe to profound hearing loss ranging in age from 15-40 years in gr...
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ژورنال
عنوان ژورنال: Journal of the American Academy of Audiology
سال: 2015
ISSN: 1050-0545,2157-3107
DOI: 10.3766/jaaa.14083