Single-shot echo planar time-resolved imaging for multi-echo functional MRI and distortion-free diffusion imaging.

ABSTRACT:

Purpose

To develop a single-shot SNR-efficient distortion-free multi-echo imaging technique for dynamic imaging applications.

Methods

Echo planar time-resolved imaging (EPTI) was first introduced as a multi-shot technique for distortion-free multi-echo imaging. This work aims to develop single-shot EPTI (ss-EPTI) to achieve improved robustness to motion/physiological noise, increased temporal resolution, and higher SNR efficiency. A new spatiotemporal encoding that enables reduced phase-encoding blips and minimized echo spacing under the single-shot regime was developed, which improves sampling efficiency and enhances spatiotemporal correlation in the k-TE space for improved reconstruction. A continuous readout with minimized deadtime was employed to optimize SNR efficiency.

SUBMITTER: Dong Z 

PROVIDER: S-EPMC11680730 | biostudies-literature | 2025 Mar

REPOSITORIES: biostudies-literature