Hierarchical stochastic neighbor embedding as a tool for visualizing the encoding capability of magnetic resonance fingerprinting dictionaries

no code implementations • 7 Oct 2019 • Kirsten Koolstra, Peter Börnert, Boudewijn Lelieveldt, Andrew Webb, Oleh Dzyubachyk

In Magnetic Resonance Fingerprinting (MRF) the quality of the estimated parameter maps depends on the encoding capability of the variable flip angle train.

Dimensionality Reduction Magnetic Resonance Fingerprinting

Accelerating CS in Parallel Imaging Reconstructions Using an Efficient and Effective Circulant Preconditioner

no code implementations • 4 Oct 2017 • Kirsten Koolstra, Jeroen van Gemert, Peter Börnert, Andrew Webb, Rob Remis

Results: The designed circulant preconditioner reduces the number of iterations required in the conjugate gradient method by almost a factor of~5.