Meeting Banner
Abstract #4255

Complementary Poisson-Disc Sampling

Evan Levine 1,2 , Manojkumar Saranathan 2 , and Brian Hargreaves 2

1 Electrical Engineering, Stanford University, Palo Alto, CA, United States, 2 Radiology, Stanford University, Palo Alto, CA, United States

Many 3D dynamic MRI sequences use stochastic k-t sampling trajectories with elliptical-centrically sampled temporal phases. Poisson-disc k-space sampling is commonly used to balance sampling incoherence for compressed sensing (CS) and uniformity for g-factor in parallel imaging. Other temporally-uniform stochastic sampling patterns are used in approaches such as DISCO and allow view-sharing, where temporal phases are complementary and are used to reconstruct composite images. To allow both view-sharing and CS reconstruction of dynamic phases, we propose a method for generating sampling patterns, each with complementary Poisson-disc sample distributions.

This abstract and the presentation materials are available to members only; a login is required.

Join Here