Fig 1.
Definitions of Morphological Parameters.
Size of aneurysm dome = Dmax; aspect ratio (AR) = Height/Neck; size ratio (SR) = 6Dmax/(D1+D2+D3+D4+D5+D6); dome-to-neck ratio (DN) = Dmax/Neck; bottleneck factor (BN) = Width/Neck.
Table 1.
Clinical, morphological and hemodynamic characteristics of PCoA aneurysms.
Fig 2.
Hemodynamic patterns of two representative posterior communicating artery (PCoA) aneurysms.
A: ruptured PCoA aneurysm with a higher inflow angle (IA, 129°); B: unruptured PCoA with a lower IA (63°). From left to right: (1) Three-dimensional models and measurement of IA; (2) distribution of wall shear stress (WSS); (3) distribution of oscillatory shear index (OSI); (4) flow pattern at the systolic peak.
Table 2.
Multivariate logistic regression analysis of parameters associated with rupture status of PCoA aneurysms.