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Anatomic features of choroidal naevi: Swept‐source optical coherence tomography vs Enhanced depth imaging tomography. Preliminary results in 31 patients
Author(s) -
Papastefanou V.,
VázquezAlfageme C.,
Xirou T.,
DegliEsposti S.,
Patel P.,
Sagoo M.S.
Publication year - 2015
Publication title -
acta ophthalmologica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.534
H-Index - 87
eISSN - 1755-3768
pISSN - 1755-375X
DOI - 10.1111/j.1755-3768.2015.0538
Subject(s) - optical coherence tomography , medicine , choroid , retinal , tomography , ophthalmology , retinal pigment epithelium , radiology , retina , optics , physics
Purpose To assess the anatomic retinal and choroidal features of choroidal naevi using swept‐source optical coherence tomography ( SS ‐ OCT ) and enhanced‐depth optical coherence tomography ( EDI ‐ OCT ). DESIGN Observational case series. Methods Patients with choroidal lesions underwent clinical examination, B‐scan ultrasound and imaging with SS ‐ OCT and EDI ‐ OCT . Location, dimensions, clinical and OCT retinal and choroidal features were recorded. Descriptive statistics were used. Results Case series included 31 patients. 27/31 naevi imaged were melanotic and 4/31 amelanotic with a an overall median thickness of 0.7 mm. Naevus configuration was plateau in 17/31 cases, dome in 10/31 cases and mixed in 4/31 cases. RPE and photoreceptor layer disruption were noted in 14/31 cases and 13/31 had no retinal changes. Subretinal fluid was noted in 6/31 cases. Bruch`s membrane was found intact in 26/31 cases on both modalities. Intrinsic hyperreflectivity was noted in 29/31 cases on EDI ‐ OCT and 30/31 cases on SS ‐ OCT with less optical shadowing. The posterior margin of the naevus was visualized in 11/31 cases with SS ‐ OCT and in 6/31 cases with EDI ‐ OCT . Intratumour vessels were visualized in 28/31 cases with SS ‐ OCT and 23/31 cases with EDI ‐ OCT . For both modalities choriocapillaris appeared compressed and abnormal in 20/31 cases. Conclusions These preliminary results indicate that imaging of choroidal naevi with SS ‐ OCT enables better visualization of intratumour vessels and the posterior margin.