Fig. 4.

In vivo microvascular imaging of the lower lip of healthy volunteer with the forward-viewing probe. (a) 3D rendered OCT structural image with the 3D mOMAG data (yellow) overlay. (b) and (c) Representative cross-sectional structural and mOMAG images (2.0 mm (X) × 1.35 mm (Z)) at a position (a black box) in (a), respectively. (d) Overlay of the mOMAG image (red) on the structural image. EP: epithelium, LP: lamina propria. (e) and (f) 2D en face views (2.0 mm (X) × 2.0 mm (Y)) of the 3D mOMAG data volumes taken over depths of 253 µm and 407 µm from the surface, respectively. Black bars in (a) are the depth ranges for (e) and (f). Arrow heads in (e) indicate hairpin-like capillary loops emerged from the arterioles (arrows) in (f). A fly-through image of the microvasculature is shown with a movie clip (Media 1 ^{(8.7MB, MPG)} ). Scale bars: 0.5 mm.