Figure 7.

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Arterial occlusion of the wrist. Reduced spectral content improves temporal resolution for hemodynamic imaging. A human wrist is imaged using SFDI with a bicep arterial occlusion at t = 1 min and release at t = 5 min. SFDI generates maps of hemodynamic changes over time. An ROI from the image is selected, and the mean changes in ctO₂Hb and ctHHb values from baseline are plotted over the course of the occlusion experiment (Video: QuickTime, 416 kB) .