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In vivo, dual energy micro-CT vascular imaging in two primary, murine sarcoma tumors. Injection of AuNPs on day 1 and liposomal iodine on day 4 allowed simultaneous measurement of tumor fractional blood volume using the iodine map (red) and vascular permeability using the gold map (green) with a single dual energy scan on day 4. Maximum intensity projections are shown through the segmented tumor volumes. Concentrations of iodine and gold are in mg/ml.
