Reliability and comparison of gain values with occurrence of saccades in the EyeSeeCam video head impulse test (vHIT)
| Autor: | Jesper Hvass Schmidt, Christian Emil Faber, Jens Højberg Wanscher, Leise Elisabeth Hviid Korsager |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Adult
Male medicine.medical_specialty Intraclass correlation medicine.medical_treatment Audiology 03 medical and health sciences 0302 clinical medicine Cochlear implant Saccades medicine Humans 030223 otorhinolaryngology Head Impulse Test Reliability (statistics) Aged Aged 80 and over Observer Variation Vestibular system business.industry Reproducibility of Results Head impulse test Reflex Vestibulo-Ocular General Medicine Middle Aged Cochlear Implantation Otorhinolaryngology Female Vestibule Labyrinth Vestibulo–ocular reflex business 030217 neurology & neurosurgery Kappa |
| Zdroj: | Hviid Korsager, L E, Schmidt, J H, Faber, C & Wanscher, J H 2016, ' Reliability and comparison of gain values with occurrence of saccades in the EyeSeeCam video head impulse test (vHIT) ', European Archives of Oto-Rhino-Laryngology, vol. 273, no. 12, pp. 4273–4279 . https://doi.org/10.1007/s00405-016-4183-2 |
| ISSN: | 1434-4726 0937-4477 |
| DOI: | 10.1007/s00405-016-4183-2 |
| Popis: | The vHIT (video head impulse test) investigates the vestibular function in two ways: a VOR (vestibulo-ocular reflex) gain value and a head impulse diagram. From the diagram covert and overt saccades can be detected. Evaluation of the vestibular function based on vHIT depends on both parameters. There is a lack of knowledge regarding the reliability of the two parameters. The objective was to investigate the reliability of vHIT by comparing gain values between examiners on the same subjects, and to see how differences affected the occurrence of saccades.SUBJECTS: 25 subjects who had undergone cochlear implant (CI) surgery. Subjects were tested using the vHIT by two of four different examiners. Two judges interpreted the occurrence of saccades in the diagram.MAIN OUTCOME MEASURES: VOR gain values and the occurrence of saccades in the diagram. Differences in gain values between examiners varied from 0.2 to 0.58 with an average of 0.14 (95 % CI 0.12-0.16) on the right ear and 0.17 (95 % CI 0.15-0.19) on the left ear. Occurrences of saccades in the same patient were reproduced in 93 % of the cases by all examiners. Kappa's coefficient on the occurrence of saccades was 0.83. Interclass correlation coefficient (ICC) of the gain values between examiners ranged from 0.62 to 0.70. Differences in gain values amongst examiners did not seem to affect the occurrence of saccades in the same patient. The occurrence of saccades, therefore, seems to be more reliable than the gain value in the evaluation of the vestibular function. Interpretation of vHIT results should, therefore, first depend on the occurrence of saccades and second on the gain value. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full text from SpringerLink