Abstract #1177

Comparison of Velocity Vector Fields and Turbulent Kinetic Energy Measured by MRI and Particle Tracking Velocimetry in a Realistic Aortic Phantom

Verena Knobloch¹, Christian Binter¹, Utku Gulan², Beat Lthi², Peter Boesiger¹, Sebastian Kozerke¹

¹Institute for Biomedical Engineering, University and ETH Zurich, Zurich, Switzerland; ²Institute of Environmental Engineering, ETH Zurich, Zurich, Switzerland

Velocity vector fields and Turbulent Kinetic Energy (TKE) were acquired in an elastic and anatomically accurate replica of a human aorta equipped with a mechanical heart valve. Using the MRI acquisition of a multi-point velocity encoded sequence, velocities and TKE were computed with Bayesian parameter estimation. As a reference, both parameters were measured with Particle Tracking Velocimetry in the transparent setup. The comparison of both measurements shows good agreement for velocity and TKE values.