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Focused Tortuosity ...
Focused Tortuosity Definitions Based on Expert Clinical Assessment of Corneal Subbasal Nerves
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- Lagali, Neil (author)
- Linköpings universitet,Avdelningen för neuro- och inflammationsvetenskap,Medicinska fakulteten,Region Östergötland, Ögonkliniken US
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- Poletti, Enea (author)
- University of Padua, Italy
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- Patel, Dipika V. (author)
- University of Auckland, New Zealand
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- McGhee, Charles N. J. (author)
- University of Auckland, New Zealand
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- Hamrah, Pedram (author)
- Harvard University, MA USA
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- Kheirkhah, Ahmad (author)
- Harvard University, MA USA
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- Tavakoli, Mitra (author)
- University of Manchester, England
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- Petropoulos, Ioannis N. (author)
- University of Manchester, England; Qatar Fdn, Qatar
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- Malik, Rayaz A. (author)
- University of Manchester, England; Qatar Fdn, Qatar
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- Paaske Utheim, Tor (author)
- Oslo University Hospital, Norway; University of Oslo, Norway
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- Zhivov, Andrey (author)
- University of Rostock, Germany
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- Stachs, Oliver (author)
- University of Rostock, Germany
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- Falke, Karen (author)
- University of Rostock, Germany
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- Peschel, Sabine (author)
- University of Rostock, Germany
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- Guthoff, Rudolf (author)
- University of Rostock, Germany
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- Chao, Cecilia (author)
- University of New S Wales, Australia
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- Golebiowski, Blanka (author)
- University of New S Wales, Australia
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- Stapleton, Fiona (author)
- University of New S Wales, Australia
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- Ruggeri, Alfredo (author)
- University of Padua, Italy
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(creator_code:org_t)
- ASSOC RESEARCH VISION OPHTHALMOLOGY INC, 2015
- 2015
- English.
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In: Investigative Ophthalmology and Visual Science. - : ASSOC RESEARCH VISION OPHTHALMOLOGY INC. - 0146-0404 .- 1552-5783. ; 56:9, s. 5102-5109
- Related links:
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https://liu.diva-por... (primary) (Raw object)
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http://liu.diva-port...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
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- PURPOSE. We examined agreement among experts in the assessment of corneal subbasal nerve tortuosity. METHODS. Images of corneal subbasal nerves were obtained from investigators at seven sites (Auckland, Boston, Linkoping, Manchester, Oslo, Rostock, and Sydney) using laser-scanning in vivo confocal microscopy. A set of 30 images was assembled and ordered by increasing tortuosity by 10 expert graders from the seven sites. In a first experiment, graders assessed tortuosity without a specific definition and performed grading three times, with at least 1 week between sessions. In a second experiment, graders assessed the same image set using four focused tortuosity definitions. Intersession and intergrader repeatability for the experiments were determined using the Spearman rank correlation. RESULTS. Expert graders without a specific tortuosity definition had high intersession (Spearman correlation coefficient 0.80), but poor intergrader (0.62) repeatability. Specific definitions improved intergrader repeatability to 0.79. In particular, tortuosity defined by frequent small-amplitude directional changes (short range tortuosity) or by infrequent large-amplitude directional changes (long range tortuosity), indicated largely independent measures and resulted in improved repeatability across the graders. A further refinement, grading only the most tortuous nerve in a given image, improved the average correlation of a given graders ordering of images with the group average to 0.86 to 0.90. CONCLUSIONS. Definitions of tortuosity specifying short or long-range tortuosity and considering only the most tortuous nerve in an image improved the agreement in tortuosity grading among a group of expert observers. These definitions could improve accuracy and consistency in quantifying subbasal nerve tortuosity in clinical studies.
Subject headings
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine (hsv//eng)
Keyword
- subbasal nerve; plexus; in vivo confocal microscopy; tortuosity; corneal nerves
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
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Lagali, Neil
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Poletti, Enea
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Patel, Dipika V.
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McGhee, Charles ...
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Hamrah, Pedram
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Kheirkhah, Ahmad
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Tavakoli, Mitra
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Petropoulos, Ioa ...
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Malik, Rayaz A.
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Paaske Utheim, T ...
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Zhivov, Andrey
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Stachs, Oliver
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Falke, Karen
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Peschel, Sabine
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Guthoff, Rudolf
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Chao, Cecilia
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Golebiowski, Bla ...
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Stapleton, Fiona
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Ruggeri, Alfredo
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- About the subject
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- MEDICAL AND HEALTH SCIENCES
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MEDICAL AND HEAL ...
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Investigative Op ...
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Linköping University