Blood flow at aneurysm neck

Blood flow at aneurysm neck" refers to the velocity, pattern, and hemodynamic characteristics of blood as it enters an intracranial aneurysm from the parent artery across the anatomical neck (ostium) of the aneurysm. This parameter is crucial in determining **wall shear stress (WSS), pressure distribution, and turbulence** at the neck and within the aneurysm dome. Zones of high velocity or concentrated inflow jets at the aneurysm neck are associated with **elevated WSS and localized wall stress**, which may promote aneurysm growth, rupture, or hinder thrombosis after treatment. Conversely, stasis or low-flow states are linked to **thrombus formation** and wall degeneration. Modern endovascular therapies (e.g., flow diverters, coiling) are designed to modulate this flow to stabilize or exclude the aneurysm from circulation. This term is a **descriptive hemodynamic or imaging biomarker**, not a molecule, protein, or classical 'target' in the therapeutic sense. It is not suitable as a canonical "target" entry.

Other names

Blood flow at neck of aneurysmHemodynamics at aneurysm neckInflow at aneurysm neckBlood velocity at aneurysm ostium