| name | moving-mri-brain-imaging |
| description | Moving MRI (mMRI) methodology for imaging during large-scale motion. Core idea: Move subject and scanner (magnet, gradients, RF coil) as a single unit to minimize relative motion, enabling neuroimaging during movement. Demonstrates cryogen-free superconducting magnet on pneumatically actuated tilt platform. Enables vestibular function studies during natural head motion. Activation: moving MRI, mMRI, motion MRI, vestibular imaging, motion artifact MRI, naturalistic neuroimaging, superconducting magnet mobile, head motion fMRI, brain imaging during movement. |
Moving MRI (mMRI) Brain Imaging
Paper
- Title: Moving MRI: Imaging a moving body with a moving magnet
- Authors: Jingting Yao, Artan Kaso, Nikhil Patel, Yin-Ching Iris Chen, Andre van der Kouwe, Daniel M. Merfeld, Jerome L. Ackerman
- arXiv: 2605.09267v1 (2026-05-10)
- Categories: physics.med-ph, eess.SY
Core Methodology
Problem
Standard MRI requires subjects to remain stationary, preventing studies of brain networks during natural movement (e.g., vestibular function, locomotion).
Key Innovation: mMRI System
Move the entire imaging system (magnet + gradients + RF coil) together with the subject:
- Compact cryogen-free superconducting magnet — no liquid helium dependency
- Pneumatically actuated tilt mechanism — moves the entire system as a unit
- Minimizes relative motion between subject and scanner during movement
- Maintains imaging during repetitive tilting motion
Experimental Validation
- Phantom scans during motion — characterized tilt-induced field shifts
- In vivo rat brain scans during repetitive tilting
- Partially reduced motion and field-shift artifacts
Applications
- Vestibular function studies: Image brain networks that sense head motion
- Naturalistic paradigms: Study neural correlates of movement
- Broadening access: Lower barrier to naturalistic neuroscience
Technical Challenges
- Tilt-induced field shifts: Gravity affects superconducting magnet homogeneity
- Residual subject-scanner motion: Imperfect coupling introduces artifacts
- Pneumatic actuation: Vibration and acceleration noise
Future Directions
- Human-scale mMRI systems
- Integration with functional imaging (fMRI) during movement
- Combined with EEG/MEG for multi-modal moving neuroimaging
Related Skills
- brain-digital-twins-execution-semantics-v3: Brain digital twin frameworks
- eeg-foundation-model-adapters: EEG foundation models
