Wide field of view swept-source optical coherence tomography for peripheral retinal disease.

Autor:	McNabb RP; Duke Eye Center, Duke University School of Medicine, Durham, North Carolina, USA., Grewal DS; Duke Eye Center, Duke University School of Medicine, Durham, North Carolina, USA., Mehta R; Duke Eye Center, Duke University School of Medicine, Durham, North Carolina, USA., Schuman SG; Duke Eye Center, Duke University School of Medicine, Durham, North Carolina, USA., Izatt JA; Duke Eye Center, Duke University School of Medicine, Durham, North Carolina, USA Department of Biomedical Engineering, Duke University, Durham, North Carolina, USA., Mahmoud TH; Duke Eye Center, Duke University School of Medicine, Durham, North Carolina, USA., Jaffe GJ; Duke Eye Center, Duke University School of Medicine, Durham, North Carolina, USA., Mruthyunjaya P; Duke Eye Center, Duke University School of Medicine, Durham, North Carolina, USA., Kuo AN; Duke Eye Center, Duke University School of Medicine, Durham, North Carolina, USA.
Jazyk:	angličtina
Zdroj:	The British journal of ophthalmology [Br J Ophthalmol] 2016 Oct; Vol. 100 (10), pp. 1377-82. Date of Electronic Publication: 2016 Jan 11.
DOI:	10.1136/bjophthalmol-2015-307480
Abstrakt:	Background/aims: To assess peripheral retinal lesions and the posterior pole in single widefield optical coherence tomography (OCT) volumes. Methods: A wide field of view (FOV) swept-source OCT (WFOV SSOCT) system was developed using a commercial swept-source laser and a custom sample arm consisting of two indirect ophthalmic lenses. Twenty-seven subjects with peripheral lesions (choroidal melanomas, choroidal naevi, sclerochoroidal calcification, retinitis pigmentosa, diabetic retinopathy, retinoschisis and uveitis) were imaged with the WFOV SSOCT. Volumes were taken in primary gaze. Using the optic nerve to fovea distance as a reference measurement, comparisons were made between the lateral FOV of the WFOV SSOCT, current generation spectral-domain OCT (SDOCT) and widefield scanning laser ophthalmoscopy (SLO) of the same eyes. Results: Peripheral pathologies were captured with WFOV SSOCT in 26 of the 27 subjects. The one not captured was in the far nasal periphery and was not seen in the primary gaze volume. Posterior pole associated pathologies were captured in all subjects. Current generation SDOCT had a mean lateral FOV of 2.08±0.21 optic nerve to fovea distance units, WFOV SSOCT had an FOV of 4.62±0.62 units and SLO had an FOV of 9.35±1.02 units. Conclusions: WFOV OCT can be used to examine both peripheral retinal pathology and the posterior pole within a single volume acquisition. SLO had the greatest FOV, but does not provide depth information. Future studies using widefield OCT systems will help further delineate the role of WFOV OCT to quantitatively assess and monitor peripheral retinal disease in three dimensions. (Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://www.bmj.com/company/products-services/rights-and-licensing/)
Databáze:	MEDLINE
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