Figure 7
From: Investigating spontaneous retinal venous pulsation using Doppler optical coherence tomography
Time-resolved investigation of venous caliber pulsations and venous and arterial flow pulsations using the double-channel imaging mode over five cardiac cycles. (a) Fundus photography with indications of measurement locations (A and B) and respective DOCT tomograms. (b) Graph of arterial flow pulsation at locations A (orange curve) and B (blue curve) presenting a typical arterial pulse profile. (c) Graph of phase-difference change (green curve) and change of cross-sectional vessel area (red curve) of the collapsing vein at location A. (d) Graph of venous flow oscillations at location A (orange curve) and B (blue curve). Supplementary Video S5 provides the movie-file of the evaluated data set. Scale bars: 1 mm; insets: 0.25 mm.
