Motion corrected silent ZTE neuroimaging.

ABSTRACT:

Purpose

To develop self-navigated motion correction for 3D silent zero echo time (ZTE) based neuroimaging and characterize its performance for different types of head motion.

Methods

The proposed method termed MERLIN (Motion Estimation & Retrospective correction Leveraging Interleaved Navigators) achieves self-navigation by using interleaved 3D phyllotaxis k-space sampling. Low resolution navigator images are reconstructed continuously throughout the ZTE acquisition using a sliding window and co-registered in image space relative to a fixed reference position. Rigid body motion corrections are then applied retrospectively to the k-space trajectory and raw data and reconstructed into a final, high-resolution ZTE image.

Results

MERLIN demonstrated successful and consist

SUBMITTER: Ljungberg E 

PROVIDER: S-EPMC9321117 | biostudies-literature | 2022 Jul

REPOSITORIES: biostudies-literature