ArticleGraefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie2024
Comparison between indocyanine green angiography and optical coherence tomography angiography for the detection of nonexudative macular neovascularization.
Article in Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
purposePatients with unilateral treatment-naïve exudative neovascular age-related macular degeneration (nAMD) were examined for the presence of nonexudative macular neovascularization (neMNV) in their fellow eye using a multimodal imaging approach. This is intended to determine the sensitivity of individual imaging methods, namely, indocyanine green angiography (ICGA) and optical coherence tomography angiography (OCTA).
methodsIn this retrospective cross-sectional study, ICGA images of the nonexudative eye were analyzed for the presence of plaques. SS-OCTA outer retinal segmentations were evaluated for neovascular flow in en-face scans and/or color-coded flow in B-scans. The findings were matched with a double-layer sign (DLS) or pigment epithelium detachment (PED) on conventional OCT.
resultsIn total, neMNV was diagnosed in the fellow eye of 40 of 241 patients (17%) using a multimodal imaging approach employing both ICGA and SS-OCTA. 25 eyes (10%) showed neMNV in both modalities, while 7 (3%) were only detected by ICGA and 8 (3%) by OCTA alone. The sensitivities of ICGA therefore were 80% (32/40) and 83% (33/40) for OCTA. Of the 40 eyes with neMNV, OCT revealed DLS in 25/40 (63%) and PED in 17/40 (43%) of the cases.
conclusionNone of the modalities alone could detect all neMNV in the partner eye of Caucasians with unilateral treatment-naïve exudative nAMD. ICGA and OCTA showed comparable sensitivity. The combination of ICGA, OCTA, and OCT provides the most comprehensive screening for this AMD subtype.
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