Fig 2. Analysis of the Endoluminal topography by SEM.

The ROS specimens (Figs A-C) showed a thrombus at t = 0 (A; arrow) that was dissolved not later than t = 8 d (B). At t = 56 d, the ROS specimen exhibited the distinctive morphology of subendothelial wall thickening (C, arrow). In contrast, the controls did not display any changes at any time (Figs D-E). Scanning electron microscopy; scale bars = 1 mm.