Quantification of hemodynamic irregularity using oscillatory velocity index in the associations with the rupture status of cerebral aneurysms

摘要: Background Complex and unstable flow patterns are reported to be associated with the rupture status of cerebral aneurysms, while their evaluation depends on qualitative analysis streamlines bloodflow. Oscillatory velocity index (OVI) is a hemodynamic parameter quantify patterns. The aim this study elucidate associations between OVI aneurysms. Methods One hundred twenty-nine ruptured unruptured aneurysms were analyzed computational fluid dynamics under pulsatile conditions. With use median value OVI, all divided into high low groups. Statistical was performed compare status, morphological parameters two Results 0.006. High more likely observed in (P=0.028) irregular shape, complex patterns, (P Conclusion characteristics These results indicate that may serve as valuable for diagnosing risks