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- W2893627815 abstract "<h3>BACKGROUND AND PURPOSE:</h3> Some retrospective studies have found that the aneurysm wall enhancement on high-resolution MR vessel wall postgadolinium T1WI has the potential to distinguish unstable aneurysms. This study aimed to identify hemodynamic characteristics that differ between the enhanced and nonenhanced areas of the aneurysm wall on high-resolution MR vessel wall postgadolinium T1WI. <h3>MATERIALS AND METHODS:</h3> TOF-MRA and high-resolution MR vessel wall T1WI of 25 patients were fused to localize the enhanced area of the aneurysm wall. Using computational fluid dynamics, we studied the aneurysm models. Mean static pressure, mean wall shear stress, and oscillatory shear index were compared between the enhanced and nonenhanced areas. <h3>RESULTS:</h3> The aneurysmal enhanced area had lower wall shear stress (<i>P</i> < .05) and a lower oscillatory shear index (<i>P</i> = .021) than the nonenhanced area. In addition, the whole aneurysm had lower wall shear stress (<i>P</i> < .05) and a higher oscillatory shear index (<i>P</i> = .007) than the parent artery. <h3>CONCLUSIONS:</h3> This study suggests that there are hemodynamic differences between the enhanced and nonenhanced areas of the aneurysm wall on high-resolution MR vessel wall postgadolinium T1WI." @default.
- W2893627815 created "2018-10-05" @default.
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- W2893627815 date "2018-09-27" @default.
- W2893627815 modified "2023-10-12" @default.
- W2893627815 title "Low Wall Shear Stress Is Associated with Local Aneurysm Wall Enhancement on High-Resolution MR Vessel Wall Imaging" @default.
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- W2893627815 doi "https://doi.org/10.3174/ajnr.a5806" @default.
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