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Effects of Misalignments in the Retinal Nerve Fiber Layer Thickness Measurements with Spectral Domain Optical Coherence Tomography
Joint Authors
Cremasco, Fernanda
Zangalli, Camila
Barella, Kleyton Arlindo
Costa, Vital Paulino
Source
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-12-09
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Abstract EN
Purpose.
To investigate misalignments (MAs) on retinal nerve fiber layer thickness (RNFLT) measurements obtained with Cirrus© SD-OCT.
Methods.
This was a retrospective, observational, cross-sectional study.
Twenty-seven healthy and 29 glaucomatous eyes of 56 individuals with one normal exam and another showing MA were included.
MAs were defined as an improper alignment of vertical vessels in the en face image.
MAs were classified in complete MA (CMA) and partial MA (PMA), according to their site: 1 (superior, outside the measurement ring (MR)), 2 (superior, within MR), 3 (inferior, within MR), and 4 (inferior, outside MR).
We compared RNFLT measurements of aligned versus misaligned exams in all 4 sectors, in the superior area (sectors 1 + 2), inferior area (sectors 3 + 4), and within the measurement ring (sectors 2 + 3).
Results.
RNFLT measurements at 12 clock-hour of eyes with MAs in the superior area (sectors 1 + 2) were significantly lower than those obtained in the same eyes without MAs P=0.043.
No significant difference was found in other areas (sectors 1 + 2 + 3 + 4, sectors 3 + 4, and sectors 2 + 3).
Conclusion.
SD-OCT scans with superior MAs may present lower superior RNFLT measurements compared to aligned exams.
American Psychological Association (APA)
Barella, Kleyton Arlindo& Cremasco, Fernanda& Zangalli, Camila& Costa, Vital Paulino. 2014. Effects of Misalignments in the Retinal Nerve Fiber Layer Thickness Measurements with Spectral Domain Optical Coherence Tomography. Journal of Ophthalmology،Vol. 2014, no. 2014, pp.1-7.
https://search.emarefa.net/detail/BIM-1042470
Modern Language Association (MLA)
Barella, Kleyton Arlindo…[et al.]. Effects of Misalignments in the Retinal Nerve Fiber Layer Thickness Measurements with Spectral Domain Optical Coherence Tomography. Journal of Ophthalmology No. 2014 (2014), pp.1-7.
https://search.emarefa.net/detail/BIM-1042470
American Medical Association (AMA)
Barella, Kleyton Arlindo& Cremasco, Fernanda& Zangalli, Camila& Costa, Vital Paulino. Effects of Misalignments in the Retinal Nerve Fiber Layer Thickness Measurements with Spectral Domain Optical Coherence Tomography. Journal of Ophthalmology. 2014. Vol. 2014, no. 2014, pp.1-7.
https://search.emarefa.net/detail/BIM-1042470
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1042470