ArticleMagnetic resonance in medicine2025
Impact of through-slice gradient optimization for dynamic slice-wise shimming in the cervico-thoracic spinal cord.
Article in Magnetic resonance in medicine, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed.
- 1D Pre-Acquisition Navigator Correcting Respiratory-Induced Field Fluctuations in Multi-Echo Gradient-Echo Imaging of the Thoracic Spinal Cord.Magnetic resonance in medicine · 2026Article
- Human Brain High-Resolution Diffusion MRI With Optimized, Slice-By-Slice, Zeroth and First OrderMagnetic resonance in medicine · 2026Article
- Impact of through-slice gradient optimization for dynamic slice-wise shimming in the cervico-thoracic spinal cord.Magnetic resonance in medicine · 2025Article
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Authors and funding
5 authors.
Funding
Abstract
purposeThis study investigates the effectiveness of through-slice gradient optimization in dynamic slice-wise B
methodsSix volunteers underwent MRI acquisitions with dynamic shim updating (DSU) using a custom-built 15-channel AC/DC coil at 3 T. A magnetization-prepared rapid gradient echo was acquired to segment the spine and to provide a clear image of the anatomical region of interest in the figures. GRE B
resultsDSU with through-slice gradient optimization increased the temporal signal-to-noise ratio at the T2 vertebral level by 201% compared with volume-wise shim and by 28% compared with DSU without through-slice. The residual geometric distortions were similar between DSU with and without through-slice gradient optimization. A high signal loss penalty parameter was effective in simulations for reducing through-slice gradient-induced signal loss but led to instability and reduced image quality in actual acquisitions due to excessive in-plane B
conclusionIntroducing a carefully balanced through-slice gradient parameter in slice-wise shimming substantially improves signal recovery in axial GRE images of the spinal cord, without compromising in-plane homogeneity. This effective approach can advance spinal cord functional MRI applications at high field strengths.
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