If doctors want to see if a wound is healing, they may have to opt for biopsy or some other invasive technique that injures an already injured person and can offer information only about a small area. But a technology called hyperspectral imaging offers doctors a noninvasive, painless way to discriminate between healthy and diseased tissue and reveal how well damaged tissue is healing over a wide area. The catch? A lack of calibration standards is impeding its use. After ...
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