Výsledky vyhledávání - "Schnell Susanne"

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Generalized super-resolution 4D Flow MRI $\unicode{x2013}$ using ensemble learning to extend across the cardiovascular system

Autor: Ericsson, Leon, Hjalmarsson, Adam, Akbar, Muhammad Usman, Ferdian, Edward, Bonini, Mia, Hardy, Brandon, Schollenberger, Jonas, Aristova, Maria, Winter, Patrick, Burris, Nicholas, Fyrdahl, Alexander, Sigfridsson, Andreas, Schnell, Susanne, Figueroa, C. Alberto, Nordsletten, David, Young, Alistair A., Marlevi, David

4D Flow Magnetic Resonance Imaging (4D Flow MRI) is a non-invasive measurement technique capable of quantifying blood flow across the cardiovascular system. While practical use is limited by spatial resolution and image noise, incorporation of traine

Externí odkaz: http://arxiv.org/abs/2311.11819

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4D-Flow MRI Pressure Estimation Using Velocity Measurement-Error based Weighted Least-Squares

Autor: Zhang, Jiacheng, Brindise, Melissa C., Rothenberger, Sean, Schnell, Susanne, Markl, Michael, Saloner, David, Rayz, Vitaliy L., Vlachos, Pavlos P.

This work introduces a 4D-flow magnetic resonance imaging (MRI) pressure reconstruction method which employs weighted least-squares (WLS) for pressure integration. Pressure gradients are calculated from the velocity fields, and velocity errors are es

Externí odkaz: http://arxiv.org/abs/1904.13201

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Patient-Specific Cerebral Aneurysm Hemodynamics: Comparison of in vitro Volumetric Particle Velocimetry, Computational Fluid Dynamics (CFD), and in vivo 4D Flow MRI

Autor: Brindise, Melissa C., Rothenberger, Sean, Dickerhoff, Benjamin, Schnell, Susanne, Markl, Michael, Saloner, David, Rayz, Vitaliy L., Vlachos, Pavlos P.

Typical approaches to patient-specific hemodynamic studies of cerebral aneurysms use image based computational fluid dynamics (CFD) and seek to statistically correlate parameters such as wall shear stress (WSS) and oscillatory shear index (OSI) to ri

Externí odkaz: http://arxiv.org/abs/1903.01303

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