BACKGROUND: Stent-assisted coiling technology has been widely used in the treatment of @entity438 . In the current study, we investigated the intra-aneurysmal hemodynamic alterations after stent implantation and their association with the @entity439 location. METHODS: We first retrospectively studied 15 @entity439 cases [8 internal carotid artery-ophthalmic artery (ICA-OphA) @entity439 and 7 posterior communicating artery (PcoA) @entity439 ] treated with Enterprise stents and coils. Then, based on the @entity1 -specific geometries before and after stenting, we built virtual stenting @entity5173 ( @entity5173 ) simulation models. RESULTS: Before and after the stent deployment, the average @entity1642 ( @entity1642 ) on the aneurysmal sac at systolic peak changed from 7.04  Pa (4.14  Pa, 15.77  Pa) to 6.04  Pa (3.86  Pa, 11.13  Pa), P   =   0.001; the spatially averaged flow velocity in the perpendicular plane of the @entity439 dropped from 0.5  m/s (0.28  m/s, 0.7  m/s) to 0.33  m/s (0.25  m/s, 0.49  m/s), P   =   0.001, respectively. Post stent implantation, the @entity1642 in @entity2998 and PcoA @entity439 decreased by 14.4  % (P   =   0.012) and 16.6  % (P   =   0.018), respectively, and the flow velocity also reduced by 10.3  % (P   =   0.029) and 10.5  % (P   =   0.013), respectively. Changes in the @entity1642 , flow velocity, and pressure were not significantly different between ICA-OphA and PcoA @entity439 (P   >   0.05). Stent implantation did not significantly change the peak systolic pressure in either @entity439 . CONCLUSION: After the stent implantation, both the intra-aneurysmal flow velocity and @entity1642 decreased independently of @entity439 (ICA-OphA and PcoA). Little change was observed in peak systolic pressure.

Hemodynamic alterations after stent implantation in 15 cases of XXXX .

@entity1 :: ('9606', 'Species') :: ['patient'] @entity2998 :: ('MESH:D002340', 'Disease') :: ['ICA-OphA aneurysms'] @entity5173 :: ('MESH:D065634', 'Disease') :: ['CFD', 'computational fluid dynamics'] @entity439 :: ('MESH:D000783', 'Disease') :: ['aneurysms', 'aneurysm type', 'aneurysm'] @entity1642 :: ('MESH:D015775', 'Disease') :: ['WSS', 'wall shear stress'] @entity438 :: ('MESH:D002532', 'Disease') :: ['intracranial aneurysms']
@entity438 :: (MESH:D002532,Disease) :: ['intracranial aneurysm']
