Ultrashort echo time Cones double echo steady state (UTE-Cones-DESS) for rapid morphological imaging of short T₂ tissues.

ABSTRACT:

Purpose

In this study, we aimed to develop a new technique, ultrashort echo time Cones double echo steady state (UTE-Cones-DESS), for highly efficient morphological imaging of musculoskeletal tissues with short T₂ s. We also proposed a novel, single-point Dixon (spDixon)-based approach for fat suppression.

Methods

The UTE-Cones-DESS sequence was implemented on a 3T MR system. It uses a short radiofrequency (RF) pulse followed by a pair of balanced spiral-out and spiral-in readout gradients separated by an unbalanced spoiling gradient in-between. The readout gradients are applied immediately before or after the RF pulses to achieve a UTE image (S₊ ) and a spin/stimulated echo image (S_- ). Weighted echo subtraction between S₊ and S

SUBMITTER: Jang H 

PROVIDER: S-EPMC8080252 | biostudies-literature | 2021 Aug

REPOSITORIES: biostudies-literature