Vestibular Stimulation in Humans by Static Magnetic Fields of A 3T MRI Scanner – A Pilot Study
| Autor: | Henryk Kazmierczak, Maria Marzec, Stanisław Osiński, Katarzyna Pawlak Osinska, Jacek Matulewski, Zbigniew Serafin, Aleksandra Wypych |
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| Rok vydání: | 2019 |
| Předmět: |
Vestibular system
genetic structures medicine.diagnostic_test biology business.industry Cognitive Neuroscience Eye movement Magnetic resonance imaging Nystagmus biology.organism_classification Gaze eye diseases Atomic and Molecular Physics and Optics Pupil Developmental Neuroscience Vertigo medicine Eye tracking medicine.symptom Nuclear medicine business |
| Zdroj: | NeuroQuantology. 17 |
| ISSN: | 1303-5150 |
| DOI: | 10.14704/nq.2019.17.4.2043 |
| Popis: | Background: The presence of vertigo and nystagmus in high magnetic field opens up the possibility of using such a stimulation for clinical purposes. OBJECTIVE: The aim of this study was to test the possibility of vestibular activation, expressed by nystagmus, using a custom clinical MRI scanner. Methods: Twelve volunteers were included. The right eye gaze location was recorded during introduction of the subject to the 3T MRI scanner's bore and during a similar movement outside the MRI suite. From the raw data from eyetracker Arrington, deviation angles of gaze and angular velocities and another parameters of nystagmus were calculated. Results: All subjects presented the changes in eye movements direction and strength during introduction to the scanner. In control conditions, obtained nystagmus was predominantly vertical- this domination disappeared in magnetic field. The results presented a significant inter-subject variability. Movement on the scanner's table resulted in a larger and faster change in the pupil's position in X and Y axes (P |
| Databáze: | OpenAIRE |
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