ArticleMagnetic resonance in medicine2026
Reducing Motion Artifact in High Resolution 7 T MRI Using the Magnetic Resonance Minimal Motion ("MR-MinMo") Head Stabilization Device.
Article in Magnetic resonance in medicine, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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Who cites it
2 citing papers in PubMed.
- Revisiting the auditory hemodynamic response function in the era of fast fMRI.bioRxiv : the preprint server for biology · 2026Article
- AutoNeuro: An Open-Source fMRI Toolbox for Real-Time Neuroadaptive Task Design.bioRxiv : the preprint server for biology · 2026Article
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Authors and funding
11 authors.
Funding
Abstract
purposeTo evaluate the effectiveness of the MR-MinMo head stabilization device in mitigating motion artifacts during long-duration, high-resolution 7 T MRI scans, with and without retrospective motion correction
methodsThe MR-MinMo was tested on seven pediatric and 12 adult healthy volunteers using 0.6 mm isotropic, 3D Multi-Echo Gradient Echo (ME-GRE) scans. A ∼10-min ME-GRE scan (linear sampling acceleration factor 2 × 2) and a ∼20-min scan (DISORDER sampling acceleration factor 1.4 × 1.4) were obtained. Both scans were acquired with and without the MR-MinMo in a 2 × 2 factorial study design. Qualitative and quantitative assessment of image quality of the first echo image was obtained via visual inspection and the normalized gradient squared (NGS) metric, respectively. A repeated measures ANOVA was used to determine individual and combined effects of the device and DISORDER images with retrospective motion correction on NGS values, with age as a binary factor (pediatric/adult). T2* maps were generated and the standard deviation of white matter R2*(=1/T2*) values assessed across conditions.
resultsThe MR-MinMo significantly reduced motion artifacts both visually and in terms of NGS scores, particularly in pediatric volunteers. There was a significant interaction between MR-MinMo and DISORDER motion correction, suggesting that MR-MinMo improved retrospective motion correction. T2* maps demonstrated improved visual appearance and reduced WM variance with the MR-MinMo.
conclusionThe MR-MinMo can improve image quality via motion reduction in high-resolution 7 T scans. By keeping motion within a correctable regime, the device can also improve the performance of retrospective motion correction methods.
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