Fig. 2.

(A) Example XY profile of an OCT angiogram from which a signal attenuation map is derived. (B) Left: XZ profile of a single line scan (red line in left panel) with 450 µm segment used to obtain signal attenuation. Right: OCT signal decay vs depth taken from two regions of interest, blue region lies within the stroke core and green region lies outside the stroke core. (C) XY map of OCT attenuation at 2 h after stroke. (For interpretation of the references to colour in this figure legend, the reader is referred to the web version of this article.)