Head impulse testing using video-oculography.
Ann N Y Acad Sci
; 1164: 331-3, 2009 May.
Article
in En
| MEDLINE
| ID: mdl-19645921
ABSTRACT
Head impulses are a routine clinical test of semicircular canal function. At the bedside, they are used to detect malfunctioning of the horizontal semicircular canals. So far, 3-D-search-coil recording is required to reliably test anterior and posterior canal function and to determine the gain of the vestibulo-ocular reflex (VOR). Search-coil recording cannot be done at the bedside. Here we tested whether video-oculography (VOG) is suitable to assess VOR gain for individual canals at the bedside. We recorded head impulses in healthy subjects using a mobile high-frame-rate, head-mounted VOG-device and compared the results with those obtained with standard search-coil recording. Our preliminary results indicate that high-frame-rate VOG is a promising tool to measure and quantify individual semicircular canal function not only at the bedside.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Reflex, Vestibulo-Ocular
Limits:
Humans
Language:
En
Journal:
Ann N Y Acad Sci
Year:
2009
Document type:
Article
Affiliation country:
Germany