Journal
BRAIN AND BEHAVIOR
Volume 11, Issue 5, Pages -Publisher
WILEY
DOI: 10.1002/brb3.2125
Keywords
multiple sclerosis; neuromyelitis optica spectrum disorder; optical coherence tomography angiography
Categories
Funding
- National Natural Science Foundation of China [81771300]
- Natural Science Foundation of Guangdong Province [2017A030313853]
- Guangzhou Science and Technology Plan Project [201904010444]
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OCT angiography revealed distinct structural and microvascular retinal changes in MS and AQP4-IgG-seropositive NMOSD. The combination of structural and microvascular parameters showed promising diagnostic capabilities for discriminating between NMOSD and MS.
Introduction The aim was to characterize the optical coherence tomography (OCT) angiography measures in patients with multiple sclerosis (MS) and neuromyelitis optica spectrum disorder (NMOSD) and to evaluate their disease discrimination capacity. Methods Patients with MS (n = 83) and AQP4-IgG-seropositive NMOSD (n = 91) with or without a history of optic neuritis, together with healthy controls (n = 34), were imaged. The main outcome measures were peripapillary retinal nerve fiber layer (pRNFL) thickness, macular ganglion cell-inner plexiform layer (GC-IPL) thickness, macular vessel density (VD), and perfusion density (PD) in the superficial capillary plexus. Diagnostic accuracy was assessed using the area under the receiver operating characteristics curve. Results Compared with patients with MS, those with NMOSD had a significantly smaller average thickness of the pRNFL and GC-IPL (80.0 [59.0; 95.8] mu m versus 92.0 [80.2; 101] mu m, p < .001; 68.0 [56.0; 81.0] mu m, versus 74.5 [64.2; 81.0] mu m, p < .001) and significantly smaller whole VD and PD areas (15.6 [12.6; 17.0] mm(-1) versus 16.7 [14.8; 17.7] mm(-1), p < .001; 0.38 [0.31; 0.42] mm(-1) versus 0.40 [0.37; 0.43] mm(-1), p < .01). The combination of structural parameters (average thickness of the pRNFL and GC-IPL) with microvascular parameters (temporal-inner quadrant of VD, temporal-inner, nasal-inferior, and nasal-outer quadrant of PD) was revealed to have a good diagnostic capability for discriminating between NMOSD and MS. Conclusions OCT angiography reveals different structural and microvascular retinal changes in MS and AQP4-IgG-seropositive NMOSD. These combined structural and microvascular parameters might be promising biomarkers for disease diagnosis.
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