oct interpretation - retina vitreous surgeons of central new york · 2018. 10. 26. ·...
TRANSCRIPT
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OCT Interpretation
Jamin Brown, MD Retina Vitreous Associates of CNY
December 6th 2014
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OCT Interpretation
! Optical Coherence Tomography " Spectral Domain-OCT " Interpretation " Case series
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Interpretation Approach ! General image characteristics
! Quality ! Artifacts ! Segmentation errors
! OCT analysis ! Scrutinize OCT layer by layer
! Location of abnormalities narrows Dx – Vitreo-retinal interface disease – Inner retinal disease – Outer retinal disease – Subretinal disease – Diffuse retinal disease
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Errors: Motion Artifact !! Raster pattern of
data acquisition !! Vertical scans are
reconstructions
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Errors: Segmentation !! ILM and RPE automatically identified
–! Serve as limits for macular thickness and volume measurements
!!Automated segmentation error prone !!SD-OCT less prone than TD-OCT
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Correlation with Histology
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Vitreo-retinal interface disease
! Disease of cortical vitreous – Anterior-Posterior contraction
! VMT – Centrifugal contraction
! Macular Hole ! Pseudohole
– Centripetal contraction ! ERM
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Vitreomacular Traction
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Vitreomacular Traction
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Macular Hole
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Chronic Macular Hole
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Epiretinal Membrane
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Disorders of Inner Retina
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Preretinal Hemorrhage
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Foveal Hypoplasia
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Artery Occlusion
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Disorders of Outer Retina
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Commotio Retinae
Arch Ophthalmol. 2011;129(1):106-110. doi:10.1001/archophthalmol.2010.342!
R
L
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Stargardt's disease
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Retinitis Pigmentosa
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Subretinal disease
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Rhegmatogenous RD
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CSR
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Drusen
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Choroidal Neovascular Membrane
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Diffuse Retinal Disease
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Macroaneurysm
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Cystoid Macular Edema
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Conclusions ! OCT Analysis: Approach
! Scrutinize OCT layer by layer
! Narrow the diagnosis – Categorizing disease by location of
abnormality
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Challenging Cases
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RPE rip
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Outer Retinal Tubulation
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Nematode
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Subretinal Hemorrhage