4D Flow MRI
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04 Jan

Posted at 16:30h in Biomedical and Biological Flows, Computation Fluid Dynamics, Fluid Dynamics, Measurement and Data Science by
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This study introduces a novel wall shear stress (WSS) estimation method for 4D flow MRI. The method improves the WSS accuracy by using the reconstructed pressure gradient and the flow-physics constraints to correct velocity gradient estimation. The method was tested on synthetic 4D flow data...

27 Jan

Posted at 16:41h in Biomedical and Biological Flows, Fluid Dynamics, Measurement and Data Science by
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4D flow magnetic resonance imaging (MRI) allows for the in vivo acquisition of time-resolved three-dimensional (3D) blood flow, enabling the evaluation of hemodynamic quantities for cerebral aneurysms (CAs). However, the accuracy of flow-derived hemodynamic quantities such as pressure and wall shear stress (WSS) is affected...

14 Sep

Posted at 15:57h in Biomedical and Biological Flows, Fluid Dynamics, Measurement and Data Science by
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4D flow magnetic resonance imaging (MRI) allows for in vivo acquisition of time-resolved three-dimensional (3D) blood flow, thus enabling quantitative analysis of volumetric, time-varying hemodynamic quantities such as flow rates, wall shear stress (WSS), pressure difference, etc. 4D flow MRI is based on the phase...

19 May

Posted at 17:21h in Biomedical and Biological Flows by
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Despite its clinical importance, accurately assessing the progression and risk of rupture of cerebral aneurysms is challenging. Hemodynamic factors play an important role in aneurysm progression, but previous studies have reported contradictory findings, preventing specific mechanisms from being defined. To date, the vast majority of studies...