RT Journal Article
SR Electronic
T1 Saccular Aneurysms on Straight and Curved Vessels Are Subject to Different Hemodynamics: Implications of Intravascular Stenting
JF American Journal of Neuroradiology
JO Am. J. Neuroradiol.
FD American Society of Neuroradiology
SP 1861
OP 1865
VO 27
IS 9
A1 Meng, H.
A1 Wang, Z.
A1 Kim, M.
A1 Ecker, R.D.
A1 Hopkins, L.N.
YR 2006
UL http://www.ajnr.org/content/27/9/1861.abstract
AB SUMMARY: Our aim was to examine hemodynamic implications of intravascular stenting in the canine venous pouch (sidewall or straight-vessel) and rabbit elastase (curved-vessel) aneurysm models. Flow dynamics in stented (Wallstent) and nonstented versions were studied by using computational fluid dynamics simulations and in vitro flow visualization, with a focus on stent placement effects on aneurysmal flow stagnancy and flow impingement. Results show that sidewall and curved aneurysm models have fundamentally different hemodynamics (shear-driven versus inertia-driven) and thus stent placement outcomes.