Diffusion tensor imaging of the auditory nerve in patients with long-term single-sided deafness

Vos, Sjoerd B.; Haakma, Wieke; Versnel, Huib; Froeling, Martijn; Speleman, Luciënne; Dik, Pieter; Viergever, Max A.; Leemans, Alexander; Grolman, Wilko

doi:10.1016/j.heares.2015.01.010

Cited by 27 publications

(23 citation statements)

References 50 publications

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“…In a pilot study, Rachakonda et al (2014) In contrast to the more recent findings of Rachakonda et al (2014) and Vos et al (2015), Lin and colleagues (2008) found lower FA values on the contralateral side to the hearing loss in adults, while Wu et al (2008) showed a decrease in FA and an increase in MD in a group of subjects with UHL aged 8 -29 years. Thus, these two studies reveal microstructural alternations that could correlate to reorganization revealed by the change in the BOLDresponse in fMRI studies.…”

Section: Diffusion Tensor Imaging (Dti)mentioning

confidence: 81%

“…Rachakonda et al (2014) suggests that the lack of such differences in white matter microstructures may be due to a compensatory plasticity, causing these structures to handle signals from the hearing ear, or that they have been recruited for other brain functions. This plasticity, regardless of what task the structures have taken, could explain the retained asymmetries in white matter structures reported by Rachakonda et al (2014) and Vos et al (2015).…”

Section: Diffusion Tensor Imaging (Dti)mentioning

confidence: 93%

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Functional-structural reorganisation of the neuronal network for auditory perception in subjects with unilateral hearing loss: Review of neuroimaging studies

et al. 2016

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Objective: This paper aims to provide a review of studies using neuroimaging to measure functional-structural reorganisation of the neuronal network for auditory perception after unilateral hearing loss. Design: A literature search was performed in PubMed. Search criterions were peer reviewed original research papers in English completed by the 11 th ofMarch 2015. Study sample: Twelve studies were found to use neuroimaging in subjects with unilateral hearing loss. An additional five papers not identified by the literature search were provided by a reviewer. Thus, a total of 17 studies were included in the review.Results: Four different neuroimaging methods were used in these studies: Functional magnetic resonance imaging (fMRI) (n = 11), diffusion tensor imaging (DTI) (n = 4), T1/T2 volumetric images (n = 2), magnetic resonance spectroscopy (MRS) (n = 1). One study utilized two imaging methods (fMRI and T1 volumetric images). Conclusion:Neuroimaging techniques could provide valuable information regarding the effects of unilateral hearing loss on both auditory and non-auditory performance. fMRI-studies showing a bilateral BOLD-response in patients with unilateral hearing loss have not yet been followed by DTI studies confirming their microstructural correlates. In addition, the review shows that an auditory modality-specific deficit could affect multi-modal brain regions and their connections.

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Section: Diffusion Tensor Imaging (Dti)mentioning

confidence: 81%

Section: Diffusion Tensor Imaging (Dti)mentioning

confidence: 93%

Functional-structural reorganisation of the neuronal network for auditory perception in subjects with unilateral hearing loss: Review of neuroimaging studies

et al. 2016

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“…The improvement of tractography protocols allowed multiple teams to publish extensive and detailed CN reconstructions not only in normal, but also pathological situations (Chen et al, 2011, Hodaie et al, 2010, Vos et al, 2015, Yoshino et al, 2016, Yoshino et al, 2015). One of the major applications of WMT in skull base surgery is the preoperative identification of the facial nerve (FN) position, in patients harboring large vestibular schwannomas.…”

Section: Infratentorialmentioning

confidence: 99%

White matter tractography for neurosurgical planning: A topography-based review of the current state of the art

Essayed

Zhang

Unadkat

et al. 2017

NeuroImage: Clinical

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We perform a review of the literature in the field of white matter tractography for neurosurgical planning, focusing on those works where tractography was correlated with clinical information such as patient outcome, clinical functional testing, or electro-cortical stimulation. We organize the review by anatomical location in the brain and by surgical procedure, including both supratentorial and infratentorial pathologies, and excluding spinal cord applications. Where possible, we discuss implications of tractography for clinical care, as well as clinically relevant technical considerations regarding the tractography methods.We find that tractography is a valuable tool in variable situations in modern neurosurgery. Our survey of recent reports demonstrates multiple potentially successful applications of white matter tractography in neurosurgery, with progress towards overcoming clinical challenges of standardization and interpretation.

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“…In the future, auditory performance and nerve degeneration might be studied with a combination of imaging and electrophysiological techniques (Ramekers et al 2015;Vos et al 2015), electric tone decay and/or post mortem cochlear histopathology (Seyyedi et al 2014).…”

Section: Discussionmentioning

confidence: 99%

Assessing auditory nerve condition by tone decay in deaf subjects with a cochlear implant

Wasmann

Eijl

Versnel

et al. 2018

International Journal of Audiology

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The condition of the auditory nerve is a factor determining hearing performance of cochlear implant (CI) recipients. Abnormal loudness adaptation is associated with poor auditory nerve survival. We examined which stimulus conditions are suitable for tone decay measurements to differentiate between CI recipients with respect to their speech perception. Tone decay was defined here as occurring when the percept disappears before the stimulus stops. We measured the duration of the percept of a 60-s pulse train. Current levels ranged from below threshold up to maximum acceptable loudness, pulse rates from 250 to 5000 pulses/s, and duty cycles (percentages of time the burst of pulses is on) from 10% to 100%. Ten adult CI recipients were included: seven with good and three with poor speech perception. Largest differences among the subjects were found at 5000 pulses/s and 100% duty cycle. The well performing subjects had a continuous percept of the 60-s stimulus within 3 dB above threshold. Two poorly performing subjects showed abnormal loudness adaptation, that is, no continuous percept even at levels greater than 6 dB above threshold. We conclude that abnormal loudness adaptation can be detected via an electric tone decay test using a high pulse rate and 100% duty cycle.

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Diffusion tensor imaging of the auditory nerve in patients with long-term single-sided deafness

Cited by 27 publications

References 50 publications

Functional-structural reorganisation of the neuronal network for auditory perception in subjects with unilateral hearing loss: Review of neuroimaging studies

Functional-structural reorganisation of the neuronal network for auditory perception in subjects with unilateral hearing loss: Review of neuroimaging studies

White matter tractography for neurosurgical planning: A topography-based review of the current state of the art

Assessing auditory nerve condition by tone decay in deaf subjects with a cochlear implant

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