Hemodynamic Differences in Intracranial Aneurysms before and after Rupture.

ABSTRACT:

Background and purpose

Rupture risk of intracranial aneurysms may depend on hemodynamic characteristics. This has been assessed by comparing hemodynamic data of ruptured and unruptured aneurysms. However, aneurysm geometry may change before, during, or just after rupture; this difference causes potential changes in hemodynamics. We assessed changes in hemodynamics in a series of intracranial aneurysms, by using 3D imaging before and after rupture.

Materials and methods

For 9 aneurysms in 9 patients, we used MRA, CTA, and 3D rotational angiography before and after rupture to generate geometric models of the aneurysm and perianeurysmal vasculature. Intra-aneurysmal hemodynamics were simulated by using computational fluid dynamics. Two neuroradiologists qualitatively assessed f

SUBMITTER: Cornelissen BM 

PROVIDER: S-EPMC7965049 | biostudies-literature | 2015 Oct

REPOSITORIES: biostudies-literature