Temporal evolution of hemodynamics in murine arteriovenous fistula: A micro-CT based CFD study
Fig 12
Vortical structures visualized using the Q-criterion for (a) day 7 and (b) day 21 models.
Whereas vortical structures predominantly develop near vessel walls, a distinct vortex core (marked by circle) forms within the AVF vein lumen. Temporal comparison reveals increased vortical intensity on day 21 compared to day 7, particularly pronounced in stenotic regions. Although relatively small in magnitude, vortical structures are also observed to develop within the main vein. The color scale represents Q-criterion magnitude (), with positive values indicating regions where rotation dominates strain.