Effect of Facial Parameters on the Incidence of Rejection and Artifacts on the Video Head Impulse Test
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Background and Objectives: The video head impulse test (vHIT) is a useful tool that uses a high-speed infrared video camera and an inertial accelerometer to quantify the vestibulo-ocular reflex. Despite advancements in recording technology, physicians should be aware of measurement artifacts induced by examiners. However, little is known about the impact of facial anatomy on artifacts. Therefore, we investigated how variance in facial anatomy affects measurement artifacts. Materials and Methods: This study enrolled nine subjects from November 2018 through November 2019. A digital camera was used to measure facial parameters, including head ratio, binocular spacing, nasofrontal angle, depth of nasion, and pupil ratio. Two examiners performed vHITs with ICS Impulse System (GN Otometrics). All impulses were assessed for artifacts, including rejection, notch during head impulse (notchduring), notch after head impulse (notchafter), and rebound. Results: The rejection rate was significantly correlated with depth of nasion, as measured by the experienced examiner, and with pupil ratio, as measured by the inexperienced examiner. notchduring rate was significantly correlated with nasofrontal angle, as measured by the inexperienced examiner. Rebound rate was significantly correlated with head ratio, as measured by both examiners. Conclusions: Measurement artifacts were significantly correlated with head ratio, depth of nasion, nasofrontal angle, and pupil ratio.
Abstract
Background and Objectives: The video head impulse test (vHIT) is a useful tool that uses a high-speed infrared video camera and an inertial accelerometer to quantify the vestibulo-ocular reflex. Despite advancements in recording technology, physicians should be aware of measurement artifacts induced by examiners. However, little is known about the impact of facial anatomy on artifacts. Therefore, we investigated how variance in facial anatomy affects measurement artifacts. Materials and Methods: This study enrolled nine subjects from November 2018 through November 2019. A digital camera was used to measure facial parameters, including head ratio, binocular spacing, nasofrontal angle, depth of nasion, and pupil ratio. Two examiners performed vHITs with ICS Impulse System (GN Otometrics). All impulses were assessed for artifacts, including rejection, notch during head impulse (notchduring), notch after head impulse (notchafter), and rebound. Results: The rejection rate was significantly correlated with depth of nasion, as measured by the experienced examiner, and with pupil ratio, as measured by the inexperienced examiner. notchduring rate was significantly correlated with nasofrontal angle, as measured by the inexperienced examiner. Rebound rate was significantly correlated with head ratio, as measured by both examiners. Conclusions: Measurement artifacts were significantly correlated with head ratio, depth of nasion, nasofrontal angle, and pupil ratio.
참고문헌 (18)
- Ulmer E, "Curthoys and halmagyi head impulse test : an analytical device", Ann Otolaryngol Chir Cervicofac, 122(2), pp.84~90 (2005)
- MacDougall HG, "The video head impulse test : diagnostic accuracy in peripheral vestibulopathy", Neurology, 73(14), pp.1134~1141 (2009)
- MacDougall HG, "Application of the video head impulse test to detect vertical semicircular canal dysfunction", Otol Neurotol, 34(6), pp.974~979 (2013)
- Mantokoudis G, "Quantifying the vestibulo-ocular reflex with video-oculography : nature and frequency of artifacts", Audiol Neurotol, 20(1), pp.39~50 (2015)
- McGarvie LA, "Horizontal eye position affects measured vertical VOR gain on the video head impulse test", Front Neurol, 6, pp.58~ (2015)
- Patterson JN, "Effects of hand placement technique on the video head impulse test(vHIT)in younger and older adults", Otol Neurotol, 36(6), pp.1061~1068 (2015)
- Mantokoudis G, "The video head impulse test during post-rotatory nystagmus : physiology and clinical implications", Exp Brain Res, 234(1), pp.277~286 (2016)
- Mantokoudis G, "Impact of artifacts on VOR gain measures by video-oculography in the acute vestibular syndrome", J Vestib Res, 26(4), pp.375~385 (2016)
- Heuberger M, "Usability of the video head impulse test : lessons from the population-based prospective KORA study", Front Neurol, 9, pp.659~ (2018)
- Halmagyi GM, "A clinical sign of canal paresis", Arch Neurol, 45(7), pp.737~739 (1988)
- Halmagyi GM, "Diagnosis and management of vertigo", Clini Med, 5(2), pp.159~165 (2005)
- Saonanon P, "Update on Asian eyelid anatomy and clinical relevance", Curr Opin Ophthalmol, 25(5), pp.436~442 (2014)
- McCurdy JA Jr, "The Asian nose : augmentation rhinoplasty with L-shaped silicone implants", Facial Plast Surg, 18(4), pp.245~252 (2002)
- Halmagyi GM, "The video head impulse test", Front Neurol, 8, pp.258~ (2017)
- Suh MW, "Effect of goggle slippage on the video head impulse test outcome and its mechanisms", Otol Neurotol, 38(1), pp.102~109 (2017)
- Jang YJ, "Rhinoplasty for the Asian nose", Facial Plast Surg, 26(2), pp.93~101 (2010)
- Wenzel A, "Reducing the number of impulses in video head impulse testing – it’s the quality not the numbers", Int J Pediatr Otorhinolaryngol, 125, pp.206~211 (2019)
- Trinidad-Ruiz G, "Relevance of artifact removal and number of stimuli for video head impulse test examination", Ear Hear, 41(5), pp.1397~1406 (2020)