What type of study is this?

This is a Experimental Study study.

September 17, 2025

An efficient post-processing pipeline for improved phase-cycled 23Na Multi-Quantum Coherences MRI

Key Points

The proposed denoising approach allows for up to 4-fold reduction in MRI acquisition time.
Dynamic Mode Decomposition effectively separates SQ and TQ signals even under corrupted RF conditions.
Robust phase-cycled sodium MRI is achieved using advanced k-space techniques for cleaner imaging.
The improvements expand the applicability of sodium MRI to more challenging clinical and experimental settings.

Abstract

Motivation: To develop an improved post-processing pipeline for robust phase-cycled Cartesian single (SQ) and triple quantum (TQ) sodium MRI of the in vivo human brain at 7T. Goal(s): Enhanced denoising and SQ/TQ signal separation capabilities to allow for substantially improved sodium SQ and TQ imaging. Approach: A k-space-based low-rank denoising technique exploiting structural redundancies is proposed. Additionally, enhanced signal separation of SQ and TQ via Dynamic Mode Decomposition (DMD) is presented. Results: The low-rank denoising approach produced high-quality images across all echo times, allowing up to 4-fold reduction in acquisition time. Interestingly, DMD separated SQ and TQ signals even under corrupted RF phase-cycling conditions. Impact: This pipeline's algorithms provide the sodium MRI community with powerful tools for signal separation and denoising, enabling clearer, more reliable SQ and TQ images even in challenging conditions, expanding applicability to clinical and experimental settings.

Bookmark

An efficient post-processing pipeline for improved phase-cycled 23Na Multi-Quantum Coherences MRI

Key Points

Abstract

Cite This Study

Also Consider

Also Consider