Journal: Magnetic Resonance in Medicine
Article Title: Motion correction for functional MRI with three‐dimensional hybrid radial‐ C artesian EPI
doi: 10.1002/mrm.26390
Figure Lengend Snippet: Flexible temporal resolution of hybrid radial‐Cartesian EPI: (a) Fully sampled (157 blades) reconstruction of an example volume. (b) K‐space plot of blades used in the reconstructions below, with the volume acquisition time and the corresponding undersampling factor relative to Nyquist criterion. The black circle indicates the point in k‐space at which the Nyquist criterion is still met. (c) Zero‐filled 3D NUFFT reconstruction, with aliasing artifacts introduced due to undersampling. (d) Reconstruction using the 3D SPIRiT parallel imaging algorithm.
Article Snippet: The undersampled zero‐filled reconstructions using the 3D NUFFT adjoint operator (Fig. c) for different numbers of blades contain aliasing artifacts characteristic of radial imaging.
Techniques: Imaging