Abstract #2977

High-resolution Imaging with a priori Knowledge Incorporating the Navier-Stokes equations and the discontinuous Galerkin method (4D flow HIKING): towards flow reconstruction constrained by computational fluid dynamics

Johannes Töger¹, Matthew J Zahr², Karin Markenroth Bloch³, Marcus Carlsson⁴, and Per-Olof Persson²

¹Diagnostic Radiology, Department of Clinical Sciences, Skane University Hospital, Lund University, Lund, Sweden, ²Department of Mathematics, Lawrence Berkeley Laboratory and University of California, Berkeley, CA, United States, ³Lund University Bioimaging Center, Lund University, Lund, Sweden, ⁴Clinical Physiology, Department of Clinical Sciences, Skane University Hospital, Lund University, Lund, Sweden

Magnetic resonance 4D flow imaging is a promising technique for diagnosis and follow-up of disease. However, 4D flow is limited by long scan times and low resolution. This work presents phantom validation of a new method for 4D flow scan acceleration, called 4D flow high-resolution imaging with a priori knowledge incorporating the Navier-Stokes equations and the discontinuous Galerkin method (4D flow HIKING). Excellent agreement with laser particle image velocimetry (PIV) was found, demonstrating the potential of the framework for scan time reduction and enhanced data quality in 4D flow.

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