Abstract #2504

MRI Goes Mobile: Assessing the Reliability and Repeatability of a Mobile vs. Stationary 1.5T MRI for Functional Neuroscience Studies

Christoph Stefan Aigner^1,2, Caroline Garcia Forlim³, Davide Santoro¹, Nils Bodammer¹, Rüdiger Brühl², Sonja Sudimac³, Katharina Schmalen³, Sebastian Schröder¹, Siwaoosh Mohammadi^1,4,5,6, and Simone Kühn³

¹Max Planck Research Group MR Physics, Max Planck Institute for Human Development, Berlin, Germany, ²Physikalisch-Technische Bundesanstalt (PTB), Berlin, Germany, ³Center for Environmental Neuroscience, Max Planck Institute for Human Development, Berlin, Germany, ⁴, Institute for Neuroradiology, Advanced MRI Research CBBM, University to Lübeck, Lübeck, Germany, ⁵Max Planck Institute for Human Cognitive and Brain Sciences, Max Planck Institute for Human Cognitive and Brain Sciences, Leipzig, Germany, ⁶Department of Systems Neuroscience, University Medical Center Hamburg-Eppendorf, Hamburg, Germany

Synopsis

Keywords: fMRI Analysis, fMRI (resting state), Reproducibility, Mobile MRI

Motivation: Mobile MRI scanners could transform functional neuroscience research by expanding accessibility to a more diverse population and enabling data collection in remote settings.

Goal(s): To assess the reliability and repeatability of a mobile 1.5T MRI scanner compared to a stationary 1.5T scanner.

Approach: Three healthy human subjects underwent MRI on both scanners across three days. The mobile scanner was relocated between measurement days to evaluate the impact of scanner movement. B₀/B₁⁺ maps, structural MP-RAGE, and functional MRI were acquired and analyzed.

Results: The mobile 1.5T scanner demonstrated comparable field homogeneity and structural/functional image quality to the stationary system, with minimal impact from relocation.

Impact: Mobile high-field 1.5T MRI scanners can bring neuroscience imaging to underserved areas. This study shows how a mobile scanner, even after relocation, can achieve comparable quality to a stationary scanner expanding the potential for broader functional neuroscience research.

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