Evaluation of optic nerve functions in subacute combined degeneration using visual evoked potential and diffusion tensor imaging—a pilot study
نویسندگان
چکیده
منابع مشابه
Diffusion tensor imaging of the optic nerve in subacute anterior ischemic optic neuropathy at 3T.
BACKGROUND AND PURPOSE DTI can provide in vivo information about the pathology of optic nerve disease, but there is no study of DTI in the setting of ION, the most frequent acute optic neuropathies in patients over 50 years of age. Our aim was to investigate the potential of DTI in the diagnosis of subacute AION at 3T. MATERIALS AND METHODS Twenty-six patients with unilateral AION and 15 heal...
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Subacute combined degeneration ( SCD) due to vitamin B12 deficiency is common in North of Europe but sometimes it is seen in Iran. It can develop before the symptoms of anemia is obvious, with myelin injury and then axon and even neuron destruction in spinal cord, brain, optic and peripheral nerves. In this study two cases are reported; in the first patient, this disease in manifested by vitami...
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A study was made with intra-operative flash--visual evoked potentials (VEP) monitored using a fibre-optic/contact lens photo stimulator in 57 patients undergoing intra-orbital surgical procedures with potential risk to the optic nerve. The VEPs recorded under enflurane and nitrous oxide anaesthesia did not differ significantly in latency or amplitude from the pre-operative recordings. Transient...
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Optic Nerve Diffusion Tensor Imaging after Acute Optic Neuritis Predicts Axonal and Visual Outcomes
BACKGROUND Early markers of axonal and clinical outcomes are required for early phase testing of putative neuroprotective therapies for multiple sclerosis (MS). OBJECTIVES To assess whether early measurement of diffusion tensor imaging (DTI) parameters (axial and radial diffusivity) within the optic nerve during and after acute demyelinating optic neuritis (ON) could predict axonal (retinal n...
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ژورنال
عنوان ژورنال: The British Journal of Radiology
سال: 2018
ISSN: 0007-1285,1748-880X
DOI: 10.1259/bjr.20180086