highly significantp < 0.001
When data from all three groups were pooled, highly significant correlations (all p < 0.001) were confirmed across the spectrum of BA volumes: larger volume was associated with lower intra-aneurysmal velocity ( r = −0.821) and TAWSS ( r = −0.866), and higher OSI ( r = 0.901) and RRT ( r = 0.939).