Cerebrospinal fluid-suppressed T₂ -weighted MR imaging at 7 T for human brain.

ABSTRACT:

Purpose

T₂ -weighted lesional imaging is most commonly performed using inversion recovery turbo spin echoes. At 7 T, however, this acquisition is limited for specific absorption rate and resolution. This work describes and implements a method to generate CSF-suppressed T₂ -weighted imaging.

Methods

The strategy uses a driven equilibrium spin-echo preparation within an inversion recovery with multiple 3D gradient-echo imaging blocks. Images are combined using the self-normalization approach, which achieves CSF suppression through optimized timing of individual blocks and minimizes sources of variation due to coil receptivity, T₂ ^* , and proton density. Simulations of the magnetization-prepared fluid-attenuated inversion recovery gra

SUBMITTER: Pan JW 

PROVIDER: S-EPMC6590483 | biostudies-literature | 2019 May

REPOSITORIES: biostudies-literature