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Figure 4 Maximum intensity projection and voxel gradient shading from a porcine coronary artery 28 d after balloon injury (voxel size, 28 µm). In the outer region of the vessel wall, in correspondence with the site of lumen stenosis due to neointimal hyperplasia, a dense plexus of newly formed vasa vasorum is present. First-order vasa vasorum are indicated by white arrows. Second-order vasa vasorum are indicated by black triangles.
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