Hemodynamics and plaque distribution in basilar artery fenestration: Computational fluid dynamics and high‐resolution MRI study

BAF morphology creates localized low-WSS microenvironments at fenestration lateral walls, correlating spatially with plaque predilection. These findings highlight the utility of CFD-HRMRI integration in decoding vascular biomechanics and suggest WSS mapping as a potential biomarker for atherosclerosis risk stratification in anatomical variants. The diminishing hemodynamic influence downstream implicates native vascular geometry as a co-determinant of plaque distribution, warranting further multiscale modeling studies.