Fig. 2.

Schematic clarification of the method used for calculation of mean vessel wall thickness based on the vessel areas [3]. The mean vessel wall thickness is calculated by taking the difference between the radius of a circle with area equal to that enclosed by the outer wall boundary (r_{total vessel}) and the radius of a circle with area equal to that enclosed by the luminal boundary (r_lumen). Outer wall and luminal boundary are indicated by the red and green line, respectively.