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FIGURE 3. FMISO curves of different areas of large HNC tumor (fused image is at right). Necrosis (
) shows poor perfusion (missing peak) and increasing FMISO accumulation, presumably reflecting hypoxia. Viable tumor (
) shows high perfusion and subsequent rapid washout, reflecting good oxygenation. Tumor tissue surrounding necrosis (
) shows impaired perfusion (low peak) followed by accumulation, reflecting hypoxia.
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