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Determination of the relationship between internal auditory canal nerves and tinnitus based on the findings of brain magnetic resonance imaging

Publication date: February 2018 Source:Biomedical Signal Processing and Control, Volume 40 Author(s): Burhan Ergen, Murat Baykara, Cahit Polat This experimental study aimed to investigate a relationship between tinnitus and thicknesses of internal auditory canal and nerves in it. It was performed on brain magnetic resonance images of patients who consulted the ear, nose, and throat clinic with tinnitus complaint. Statistical hypothesis tests and classification experiments were performed on these data to find out structural differences in internal auditory channel components in patients with tinnitus after obtaining cross-sectional areas of nerves as thicknesses. Both the hypothesis tests and classification results showed that the thicknesses of nerves in tinnitus cases were different from those in normal cases. In particular, the hypothesis tests for the superior vestibular nerve and internal auditory channel showed the highest significance, indicating the relationship with tinnitus. The classification results indicated the possibility of classification for tinnitus identification, establishing a computer-assisted diagnostic system to help physicians.
Source: Biomedical Signal Processing and Control - Category: Biomedical Science Source Type: research

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Conclusion: MRI showed that a high percentage of ears affected by Menière's disease or delayed endolymphatic hydrops had EH. Further studies should evaluate the implications of EH in ears, especially in those with sudden SNHL, in terms of secondary or pre-existing EH.
Source: Otology and Neurotology - Category: ENT & OMF Tags: Sensorineural Hearing Loss and Tinnitus Source Type: research
Conclusion: Historically, HRCT has been the imaging modality of choice for diagnosing LVA. Although a higher concordance rate of HRT2-MRI was found compared with previous studies utilizing earlier MRI technology, HRCT still detected a larger number of patients with clinically significant hearing loss compared with MRI. Given the high concordance rate and efficacy of both modalities in diagnosing LVA, the ultimate decision of which modality to choose may depend on other patient-specific and clinical factors.
Source: Otology and Neurotology - Category: ENT & OMF Tags: Sensorineural Hearing Loss and Tinnitus Source Type: research
Publication date: Available online 5 July 2017 Source:Progress in Neuro-Psychopharmacology and Biological Psychiatry Author(s): Yu-Chen Chen, Fan Bo, Wenqing Xia, Shenghua Liu, Peng Wang, Wen Su, Jin-Jing Xu, Zhenyu Xiong, Xindao Yin Chronic tinnitus is often accompanied with depressive symptom, which may arise from aberrant functional coupling between the amygdala and cerebral cortex. To explore this hypothesis, resting-state functional magnetic resonance imaging (fMRI) was used to investigate the disrupted amygdala-cortical functional connectivity (FC) in chronic tinnitus patients with depressive mood. Chronic tinnitus ...
Source: Progress in Neuro Psychopharmacology and Biological Psychiatry - Category: Psychiatry Source Type: research
AbstractLoss of neural structures (such as hair cells or neurones within the spiral ganglion) has been proposed to be involved in Meni ère’s disease (MD) (Spoendlin et al. Acta oto-laryngologica Supplementum 499:1–21,1; Merchant et al. Eur Arch Oto-Rhino-Laryngol Off J Eur Feder Oto-Rhino-Laryngol Soc (EUFOS) Affil German Soc Oto-Rhino-Laryngol Head Neck Surg 252(2):63 –75,2; Tsuji et al. Ann Otol Rhinol Laryngol Suppl 81:26 –31,3; Kariya, Otol Neurotol Off Publ Am Otol Soc Am Neurotol Soc Eur Acad Otol Neurotol 28(8):1063 –1068,4; Megerian Laryngoscope 115(9):1525 –1535,5) but th...
Source: European Archives of Oto-Rhino-Laryngology - Category: ENT & OMF Source Type: research
Conclusion These candidate neural reactivity markers of treatment response have potential clinical value in identifying tinnitus sufferers who would or would not therapeutically benefit from rTMS intervention. Graphical abstract
Source: Brain Stimulation - Category: Neurology Source Type: research
Conclusion: The results of this study showed no significant difference in respect of the presence of vascular loop on the MRI findings of symptomatic and healthy ears. The presence of vascular loop on MRI is not always a pathological event and should be considered only as an examination finding that could be an anatomic variation.
Source: Journal of Craniofacial Surgery - Category: Surgery Tags: Brief Clinical Studies Source Type: research
Conclusions:PTC can occur in the presence of SLE activity, and clinicians should be able to recognize this entity, thinking twice when a patient with SLE presents with headache. Prognosis seems to be favorable when immunotherapy is considered.Disclosure: Dr. Yacoub has nothing to disclose. Dr. Estephan has nothing to disclose. Dr. Fortini has nothing to disclose. Dr. Nitrini has nothing to disclose.
Source: Neurology - Category: Neurology Authors: Tags: Headache: Epidemiology and Disease Characteristics Source Type: research
CONCLUSION: To the authors' knowledge, this paper reports the only case of post-stapedectomy granuloma tracking to the brainstem. Otalgia was present in all our cases, and may be deemed a red flag symptom of progressive bony destruction and otic capsule involvement. Although granuloma remains rare, it should be considered in any patient with worsening otological symptoms following stapes surgery. PMID: 28316289 [PubMed - as supplied by publisher]
Source: Journal of Laryngology and Otology - Category: ENT & OMF Tags: J Laryngol Otol Source Type: research
This study was designed to demonstrate the functional network alterations in the patients with pulsatile tinnitus (PT). In this study, we recruited 45 patients with unilateral PT in the early stage of disease (less than 48 months of disease duration) and 45 normal controls. We used regional homogeneity (ReHo) and seed-based FC computational methods to reveal resting-state brain activity features associated with pulsatile tinnitus. Compared with healthy controls, PT patients showed regional abnormalities mainly in the left middle occipital gyrus (MOG), posterior cingulate gyrus (PCC), precuneus and right anterior insula (AI...
Source: Hearing Research - Category: Audiology Authors: Tags: Hear Res Source Type: research
Abstract The phantom sound of tinnitus is believed to be triggered by aberrant neural activity in the central auditory pathway, but since this debilitating condition is often associated with emotional distress and anxiety, these comorbidities likely arise from maladaptive functional connections to limbic structures such as the amygdala and hippocampus. To test this hypothesis, resting‐state functional magnetic resonance imaging (fMRI) was used to identify aberrant effective connectivity of the amygdala and hippocampus in tinnitus patients and to determine the relationship with tinnitus characteristics. Chronic tinnitus p...
Source: Human Brain Mapping - Category: Neurology Authors: Tags: Research Article Source Type: research
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