Near-silent distortionless DWI using magnetization-prepared RUFIS.

ABSTRACT:

Purpose

To develop a near-silent and distortionless DWI (sd-DWI) sequence using magnetization-prepared rotating ultrafast imaging sequence.

Methods

A rotating ultrafast imaging sequence was modified with driven-equilibrium diffusion preparation, including eddy-current compensation methods. To compensate for the T₁ recovery during readout, a phase-cycling method was used. Both compensation methods were validated in phantoms. The optimized sequence was compared with an EPI diffusion sequence for image distortion, contrast, ADC, and acoustic noise level in phantoms. The sequence was evaluated in 1 brain volunteer, 5 prostate volunteers, and 10 pediatric patients with joint diseases.

Results

Combination of several eddy-current compensation methods reduced the a

SUBMITTER: Yuan J 

PROVIDER: S-EPMC7083692 | biostudies-literature | 2020 Jul

REPOSITORIES: biostudies-literature