Simultaneous 3D acquisition of ¹ H MRF and ²³ Na MRI.

ABSTRACT:

Purpose

To develop a 3D MR technique to simultaneously acquire proton multiparametric maps (T₁ , T₂ , and proton density) and sodium density weighted images over the whole brain.

Methods

We implemented a 3D stack-of-stars MR pulse sequence which consists of interleaved proton (¹ H) and sodium (²³ Na) excitations, tailored slice encoding gradients that can encode the same slice for both nuclei, and simultaneous readout with different radial trajectories (¹ H, full-radial; ²³ Na, center-out radial). The receive chain of our 7T scanner was modified to enable simultaneous acquisition of ¹ H and ²³ Na signal. A heuristically optimized flip angle train was implemented for proton MR fingerprinti

SUBMITTER: Yu Z 

PROVIDER: S-EPMC8847332 | biostudies-literature | 2022 May

REPOSITORIES: biostudies-literature