Figure 9: Sample Data from Langendorff-Perfused Rabbit Hearts. | Scientific Reports

Figure 9: Sample Data from Langendorff-Perfused Rabbit Hearts.

From: Low-Cost Optical Mapping Systems for Panoramic Imaging of Complex Arrhythmias and Drug-Action in Translational Heart Models

Figure 9

Fluorescence signals from two points on the ventricles (left panel; centered on the red and blue circles) during electrical pacing (green circle indicates the location of electrical point stimulation) using the (a) CMOS camera and (b) EMCCD camera (see text for details). Single pixel and spatially averaged (3 × 3 pixels) traces are shown, unfiltered in time. The SNRs were considerably higher for the EMCCD camera. (c) Simultaneous voltage and calcium imaging traces (normalized) taken from the blue-square regions shown (left panel) during sinus rhythm. Signals are in arbitrary fluorescence units.

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