Contact: Diana Lutz
Washington University in St. Louis
Caption: The arteries (red) and veins (green) stand out clearly in a photoacoustic microscope image of a mouse ear. The new imaging technique, which marries sound and light to garner optical quality images of tissues beneath the skin is very sensitive to color changes like those that occur as hemoglobin becomes saturated with oxygen.
Credit: Song Hu/Lihong Wang
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