Fig. 3
In vivo OCTA imaging of curved sections of mouse brain (2.5 mm × 3.1 mm) with GB and NB. a En face (x–y) image acquired by GB-OCTA, scale bars at bottom left, 200 μm. b En face (x–y) image acquired by NB-OCTA. The yellow, red, and green boxes in (a and b) are zoomed in as (c, d, and b), indicating axial positions of -200 μm, 0 μm, and 200 μm, respectively. The images are defocused in yellow and green boxes with GB but not with NB. The red boxes are within the depth of focus of both GB and NB, but with higher CNR, some micro vessels are visible in NB image but not in GB image, marked by red arrows. f, g, and h The profiles of a single micro vessel (marked by blue arrows) in (c, d, and e) respectively