1. Articles from G. T. Plant

    1-5 of 5
    1. Quality control for retinal OCT in multiple sclerosis: validation of the OSCAR-IB criteria

      Quality control for retinal OCT in multiple sclerosis: validation of the OSCAR-IB criteria

      Background: Retinal optical coherence tomography (OCT) permits quantification of retinal layer atrophy relevant to assessment of neurodegeneration in multiple sclerosis (MS). Measurement artefacts may limit the use of OCT to MS research. Objective: An expert task force convened with the aim to provide guidance on the use of validated quality control (QC) criteria for the use of OCT in MS research and clinical trials. Methods: A prospective multi-centre ( n = 13) study. Peripapillary ring scan QC rating of an OCT training set ( n = 50) was followed by a test set ( n = 50). Inter-rater agreement was calculated using kappa statistics. Results were ...

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    2. Demonstration of the time course of retrograde trans-synaptic degeneration in the visual system using optical coherence tomography

      Demonstration of the time course of retrograde trans-synaptic degeneration in the visual system using optical coherence tomography
      26 patients were recruited following acute unilateral damage to the postgeniculate visual pathway (onset 12–50 years prior to testing) together with age and sex matched controls. Peripapillary retinal nerve fibre layer (RNFL) thickness was measured with optical coherence tomography on a single occasion. (2) 7 of the 26 patients and a further 4 patients with incomplete hemianopia were recruited within 5 months of the injury (range 5–177 days). In this group the RNFL thickness was measured serially for at least 43 days (range 43–876 days) to study the rate of change. Results (1) There is a negative ...
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    3. A preliminary longitudinal study of the retinal nerve fiber layer in progressive multiple sclerosis

      Abstract  Thinning of the retinal nerve fiber layer (RNFL) of clinically unaffected eyes is seen in patients with multiple sclerosis (MS). It is uncertain when this thinning occurs, and whether ongoing RNFL loss can be measured over time with optical coherence tomography (OCT). Using time-domain OCT, we studied 34 patients with progressive MS (16 primary progressive MS, 18 secondary progressive; 14 male; 20 female; mean age at study entry 51 years; median EDSS 6; mean disease duration at study entry 12 years) on two occasions with a median interval of 575 (range 411–895) days apart. Eighteen healthy controls (10 ...
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    4. Assessing structure and function of the afferent visual pathway in multiple sclerosis and associated optic neuritis

      Abstract  The afferent visual pathway is commonly affected in MS. Assessment of the afferent visual pathway using clinical, imaging and electrophysiological methods not only provides insights into the pathophysiology of MS, but also provides a method of investigating potential therapeutic measures in MS. This review summarises the various assessment methods, in particular imaging techniques of the visual pathway. Retinal nerve fibre layer (RNFL) thickness is usually reduced following an episode of optic neuritis. Techniques such as optical coherence tomography, scanning laser polarimetry, and confocal scanning laser ophthalmoscopy are used to quantify RNFL thickness. MRI of the optic nerve is not ...
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    5. Optic neuritis and multiple sclerosis.

      Related Articles Optic neuritis and multiple sclerosis. Curr Opin Neurol. 2008 Feb;21(1):16-21 Authors: Plant GT PURPOSE OF REVIEW: To discuss recent neuro-ophthalmic advances relevant to the management of optic neuritis and multiple sclerosis. RECENT FINDINGS: Major advances have occurred in the fields of autoimmunity in optic neuritis, and in imaging the retinal nerve fibre layer in both optic neuritis and multiple sclerosis. SUMMARY: A proportion of cases of optic neuritis occur in patients who do not develop multiple sclerosis; the optic neuritis may be monophasic illness or recurrent. In many recurrent cases who also have myelitis (neuromyelitis ...
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    1-5 of 5
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    1. (3 articles) University College London
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    Demonstration of the time course of retrograde trans-synaptic degeneration in the visual system using optical coherence tomography Quality control for retinal OCT in multiple sclerosis: validation of the OSCAR-IB criteria A Deep Learning Framework for the Detection and Quantification of Reticular Pseudodrusen and Drusen on Optical Coherence Tomography Quantitative assessment of textural features in the early detection of diabetic retinopathy with optical coherence tomography angiography Line-field confocal optical coherence tomography of fibroepithelioma of Pinkus Assessment of demineralized tooth lesions using optical coherence tomography and other state-of-the-art technologies: a review Optic disc and retinal vessel densities assessment by optical coherence tomography angiography in patients with keratoconus Optical coherence tomography angiography in Bietti crystalline dystrophy Choroidal vascularity profile in diabetic eyes using wide field optical coherence tomography Diagnostic accuracy of OCTA and OCT for myopic choroidal neovascularisation: a systematic review and meta-analysis All Eyes on Pcs - Analysis of the Retinal Microvasculature in Patients With Post-COVID-19 Syndrome Training Health Care Professional in Detecting BCC on OCT Using E-learning and CUSUM-analysis