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. Author manuscript; available in PMC: 2019 Mar 7.
Published in final edited form as: Prog Retin Eye Res. 2017 Dec 8;64:1–55. doi: 10.1016/j.preteyeres.2017.11.003

Fig. 17.

Fig. 17.

OCTA artifacts from lipid deposits. OCTA decorrelation artifacts generated by intraretinal lipid in a patient with radiation retinopathy affecting the peripapillary retina. (A) There is an area of edema ringed by lipoprotein precipitates in this color image taken a few months prior to OCTA imaging. (B) OCTA projection, segmented at Henle’s fiber layer which is normally an avascular area. Note the lipid generates a high decorrelation signal. (C) Segmented, albeit somewhat inaccurately at the deep vascular plexus, there are artifacts from the lipid as well (arrowheads). (D) Note that even at this level, the false color flow density map shows the lipid as high flow regions (arrowheads). Lipoprotein precipitates generate motion contrast, which resemble blood flow on OCTA.