The effect of magnetic resonance imaging noise on cochlear function in dogs

Venn, Rebecca Elisabeth; McBrearty, Alix; McKeegan, Dorothy; Penderis, Jacques

doi:10.1016/j.tvjl.2014.07.006

Cited by 11 publications

(7 citation statements)

References 23 publications

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“…Accordingly, it was stated that MRI examination with ear protection had no negative effect on cochlear functions. However, in an experimental study on dogs in which DPOAE values were measured, Venn et al 19 reported that MRI noise caused a decrease in frequency-specific cochlear functions.…”

Section: Discussionmentioning

confidence: 99%

Does 3 Tesla Magnetic Resonance Imaging Have Adverse Effect on Cochlear Functions?

et al. 2021

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Objective: The aim of this study was to investigate the effects of 3 Tesla (3T) magnetic resonance imaging (MRI) noise on cochlear functions. Methods: The distortion product otoacoustic emission (DPOAE) test was applied to patients who were scheduled to have 3T MRI in the tertiary care center. Patients who revealed emission amplitudes at all frequencies (1, 1.5, 2, 3, 4, 6, and 8 kHz) in the DPOAE test before MRI were included in the study. After MRI, the DPOAE test was performed twice on 17 patients (33 ears) (immediately after MRI and 30 minutes after MRI). The changes in the results of the tests taken before MRI (pre-MRI), immediately after MRI (post-MRI 1), and at 30 minutes after MRI (post-MRI 2) in the DPOAE amplitudes at all frequencies were compared statistically. Results: There was a significant difference between pre-MRI, post-MRI 1, and post-MRI 2 measurements at 3, 6, and 8 kHz. In pairwise comparisons; post-MRI 1 was statistically lower than post-MRI 2 at 3 kHz, and post-MRI 1 was statistically lower than pre-MRI and post-MRI 2 at 6 and 8 kHz. In addition, post-MRI 2 was significantly lower than pre-MRI at 8 kHz. Conclusion: According to these results, 3T MRI noise does not have any permanent negative impact on hearing functions. It can only cause DPOAE amplitude changes at high frequencies. This is a clinically negligible effect. Therefore, it can be considered that the 3T MRI examination with protective headphones does not cause any adverse side effects in terms of hearing functions.

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Section: Discussionmentioning

confidence: 99%

Does 3 Tesla Magnetic Resonance Imaging Have Adverse Effect on Cochlear Functions?

et al. 2021

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“…Our experience with puppy screening and diagnostic testing in the FETCHLAB clinics is that we do see five waves most of the time. The second wave in the sequence (wave Il) is often of sufficiently small amplitude that it is masked by the background recording noise and, therefore, not readily identifiable [7,8]. These variances in the morphology of BAER recordings are not considered unusual and likely result from an interaction between the selected electrode placement sites, acquisition parameters, and electrical transmission characteristics of the various tissues interposed between the neural generators and the electrode recording site [8].…”

Section: Methodsmentioning

confidence: 99%

“…As a result of the number of cases of congenital deafness in dogs, the veterinary and breeding communities have made an extensive effort to perform auditory screening between the ages of 5-8 weeks of age. The only acceptable audiological test for determining baseline hearing acuity is the brainstem auditory evoked response (BAER) test [5][6][7][8][9][10][11][12]. We are using BAER testing for threshold estimation as a baseline for establishing current hearing threshold in dogs in the current protocol.…”

Section: Introductionmentioning

confidence: 99%

Canine Hearing Management

Scheifele¹,

Marshall²,

Reid³

et al. 2023

Recent Advances in Canine Medicine

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The United States military employs multipurpose canines as force multipliers. A newly developed baseline audiology program applicable to noise effects on the hearing threshold for these dogs has just been developed by the University of Cincinnati FETCHLAB using brainstem auditory evoked potentials to detect estimated threshold shifts in this population. Dogs that are routinely deployed are subject to consistent exposure to noise in the field. Few investigations have focused on the effects of transport noise on the auditory system in multipurpose dogs. The consequence of these dogs having a significant hearing threshold shift is a failure of the dog to properly respond to voice commands and to miss critical acoustic cues while on target. This chapter specifically discusses the baseline protocol for audiological testing of special operations’ multipurpose canines related to helicopter transport.

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“…Due to the extremely high sound pressure levels (SPLs) found in the MR environment, noise-induced discomfort and hearing loss are a concern for MR experiments. Sound levels in an MR suite range between 65 and 95 dB, with peaks from 120 to 131 dB, and these levels have been shown to result in significant short-term hearing loss in dogs (Venn et al, 2014). Physiological effects of sound stress include elevations in heart rate and blood pressure, as well as changes in metabolism.…”

Section: Methodological Issues and Solutionsmentioning

confidence: 99%

“…The efficacy of using high-field MRI to image dog brain structure was explored by Martín-Vaquero et al (2011), in which it was found that the 3T MRI provided more consistent and reliable anatomical imaging data than did 7T MRI, contrary to what one might expect given generally superior field strength and image quality at 7T. In regard to health concerns surrounding MRI with dog subjects, Venn, McBrearty, McKeegan, and Penderis (2014) published findings of post-scan hearing loss, emphasizing the need for hearing protection when imaging dogs in MRI environments.…”

Section: History Of Fmri In the Dogmentioning

confidence: 99%

Functional Magnetic Resonance Imaging of the Domestic Dog: Research, Methodology, and Conceptual Issues

Thompkins¹,

Deshpande²,

Waggoner³

et al. 2016

CCBR

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Neuroimaging of the domestic dog is a rapidly expanding research topic in terms of the cognitive domains being investigated. Because dogs have shared both a physical and social world with humans for thousands of years, they provide a unique and socially relevant means of investigating a variety of shared human and canine psychological phenomena. Additionally, their trainability allows for neuroimaging to be carried out noninvasively in an awake and unrestrained state. In this review, a brief overview of functional magnetic resonance imaging (fMRI) is followed by an analysis of recent research with dogs using fMRI. Methodological and conceptual concerns found across multiple studies are raised, and solutions to these issues are suggested. With the research capabilities brought by canine functional imaging, findings may improve our understanding of canine cognitive processes, identify neural correlates of behavioral traits, and provide early-life selection measures for dogs in working roles.

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The effect of magnetic resonance imaging noise on cochlear function in dogs

Cited by 11 publications

References 23 publications

Does 3 Tesla Magnetic Resonance Imaging Have Adverse Effect on Cochlear Functions?

Does 3 Tesla Magnetic Resonance Imaging Have Adverse Effect on Cochlear Functions?

Canine Hearing Management

Functional Magnetic Resonance Imaging of the Domestic Dog: Research, Methodology, and Conceptual Issues

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