Distortionless, free-breathing, and respiratory resolved 3D diffusion weighted imaging of the abdomen.

ABSTRACT:

Purpose

Abdominal imaging is frequently performed with breath holds or respiratory triggering to reduce the effects of respiratory motion. Diffusion weighted sequences provide a useful clinical contrast but have prolonged scan times due to low signal-to-noise ratio (SNR), and cannot be completed in a single breath hold. Echo-planar imaging (EPI) is the most commonly used trajectory for diffusion weighted imaging but it is susceptible to off-resonance artifacts. A respiratory resolved, three-dimensional (3D) diffusion prepared sequence that obtains distortionless diffusion weighted images during free-breathing is presented. Techniques to address the myriad of challenges including: 3D shot-to-shot phase correction, respiratory binning, diffusion encoding during free-breathing, and ro

SUBMITTER: Lee PK 

PROVIDER: S-EPMC12923270 | biostudies-literature | 2024 Aug

REPOSITORIES: biostudies-literature