Magnetization-prepared shells trajectory with automated gradient waveform design.

ABSTRACT:

Purpose

To develop a fully automated trajectory and gradient waveform design for the non-Cartesian shells acquisition, and to develop a magnetization-prepared (MP) shells acquisition to achieve an efficient three-dimensional acquisition with improved gray-to-white brain matter contrast.

Methods

After reviewing the shells k-space trajectory, a novel, fully automated trajectory design is developed that allows for gradient waveforms to be automatically generated for specified acquisition parameters. Designs for two types of shells are introduced, including fully sampled and undersampled/accelerated shells. Using those designs, an MP-Shells acquisition is developed by adjusting the acquisition order of shells interleaves to synchronize the center of k-space sampling with the pea

SUBMITTER: Shu Y 

PROVIDER: S-EPMC5811388 | biostudies-literature | 2018 Apr

REPOSITORIES: biostudies-literature