Wall shear stress vectors derived from 3D PC-MRI at increasing resolutions in an intracranial aneurysm phantom
نویسندگان
چکیده
Background Wall shear stress (WSS) is the friction force that blood flow exerts on the vessel wall. It is thought to affect the function of endothelial cells and the development of atherosclerosis and aneurysms. A promising technique to measure blood flow is three-dimensional phase contrast MRI (3D PC-MRI). Due to limited spatial resolution and SNR, estimating WSS from time-resolved 3D PC-MRI is challenging. In this study, a recently in-house developed WSS algorithm is tested on 3D PC-MRI in an intracranial aneurysm phantom, measured with steady flow at different resolutions.
منابع مشابه
Wall shear stress in an in vitro and in vivo intracranial aneurysm estimated with phase contrast MRI
Objective The objective was to study the performance of an in-house developed wall shear stress (WSS) algorithm using PC-MRI in intracranial aneurysms. Materials & Methods First, the algorithm was applied to a high resolution in vitro PC-MRI measurement under steady and pulsatile fl ow conditions. A CFD simulation was performed with similar infl ow boundary conditions. Second, WSS was estimated...
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