Hemodynamic analyses of the RPcomAA at the aneurysm status. A, Two-dimensional-DSA and 3D-DSA reconstruction images of the RPcomAA. B, Hemodynamic analyses in terms of WSS, pressure, velocity field, streamlines, and WSSG show elevated WSS and low pressure at the distal aneurysm neck, and decreased WSS and elevated pressure at the aneurysm dome. A complex blood flow pattern is observed in the aneurysm sac with a narrowed inflow jet and impaction zone. C, Quantification along the longitudinal section of the aneurysm wall shows significant changes in the distribution of WSS and WSSG at the peak of the systolic period. WSS, wall shear stress; P, pressure VMP, von Mises pressure; VF, velocity field; SL, streamlines; WSSG, wall shear stress gradient.