Fig 1.
Diagrams of (a) 2D and (b) 3D Cartesian k-space sampling schemes based on the golden ratio.
Fig 2.
Diagrams of 64 successive 2D k-space sampling trajectories based on (a) Eq (1) and (b) Eq (2).
Fig 3.
Point spread function comparison between (a) the golden-angle radial trajectory and (b) the proposed trajectory.
Fig 4.
“Shepp-Logan” phantom used in the simulation.
Fig 5.
(a) phantom images, images reconstructed from (b) data from the conventional Cartesian sampling method, (c) data from golden-angle radial sampling using regridding reconstruction method, (d) data from golden-angle radial sampling using CS reconstruction method, and (e) the proposed method.
Fig 6.
Mean AP values of reconstructed images versus N with a temporal resolution of 10TR.
Fig 7.
Mean AP values of the four methods with different temporal resolutions.
Fig 8.
Reconstructed images from the golden-angle radial sampling method with temporal resolutions of (a) 10TR, (b) 30TR, and (c) 50TR.