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Figure 4 Similar to Figure 2, this illustrates intravascular ultrasound images of the atherosclerotic left carotid artery of a Yucatan miniswine (notice the circular atheroma deposition). (A) After injection of saline (arrows point to early atheroma). (B) After injection of unconjugated liposomes (arrows point to liposomes within the lumen). (C) After injection of anti–ICAM-1 labeled liposomes (arrows point to liposomes attached to the atherosclerotic plaque).