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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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In this study, we recruited 23 left-sided, 23 right-sided PT (LSPT, RSPT) patients and 23 normal controls (NC). We combined applied independent component analysis and seed-based functional connectivity (FC) analysis to investigate alteration feature of the FC of the AN by using resting-state functional magnetic resonance imaging (rs-fMRI). Compared with NC, LSPT patients demonstrated disconnected FC within the AN on both sides. Disrupted network integrity between AN and several brain functional networks, including executive control network, self-perceptual network and the limbic network, was also demonstrated in LSPT patie...
Source: Progress in Neuro Psychopharmacology and Biological Psychiatry - Category: Psychiatry Source Type: research
Authors: Kleinjung T, Thüring C, Güntensperger D, Neff P, Meyer M Abstract Neurofeedback is a noninvasive neuromodulation technique employing real-time display of brain activity in terms of electroencephalography (EEG) signals to teach self-regulation of distinct patterns of brain activity or influence brain activity in a targeted manner. The benefit of this approach for control of symptoms in attention deficit disorders, hyperactivity, depression, and migraine has been proven. Studies in recent years have also repeatedly shown this treatment to improve tinnitus symptoms, although it has not become e...
Source: HNO - Category: ENT & OMF Tags: HNO Source Type: research
Conclusion Due to the direct link between poor executive functions and prefrontal cortex alterations in TP, we postulate that a lack of inhibitory modulation following an impaired top-down cognitive control may maintain tinnitus by hampering habituation mechanisms. This deficit in executive functions caused by prefrontal cortex alterations would be a key-factor in the generation and persistence of tinnitus.
Source: NeuroImage: Clinical - Category: Radiology Source Type: research
Abstract Noninvasive brain stimulation can modify phantom sounds for longer periods by modulating neural activity and putatively inducing regional neuroplastic changes. However, treatment response is limited and there are no good demographic or clinical predictors for treatment outcome. We used state‐of‐the‐art voxel‐based morphometry (VBM) to investigate whether transcranial magnetic stimulation‐induced neuroplasticity determines therapeutic outcome. Sixty subjects chronically experiencing phantom sounds (i.e., tinnitus) received repetitive transcranial magnetic stimulation (rTMS) of left dorsolateral prefrontal...
Source: Human Brain Mapping - Category: Neurology Authors: Tags: Research Article Source Type: research
CONCLUSION: In our series, QOL is not influenced in patients with unilateral untreated small VS in comparison to Germany's general population. This is helpful information when advising patients during follow-up and finding out the optimal timing of individual treatment. PMID: 29048255 [PubMed - as supplied by publisher]
Source: Neurological Research - Category: Neurology Tags: Neurol Res Source Type: research
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
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