Key Clinical Summary

• Portable ultra-low field magnetic resonance imaging (MRI) demonstrated improved image reproducibility and lesion detection after software upgrades.
• Researchers identified periventricular, juxtacortical, and infratentorial multiple sclerosis (MS) lesions using a 0.064 Tesla portable scanner.
• The technology may improve imaging access for patients with MS in remote settings or for individuals unable to tolerate conventional MRI.

In a presentation at the Consortium of Multiple Sclerosis Centers Annual Meeting, researchers reported that upgrades to an ultra-low field portable MRI system improved image quality and reproducibility for patients with MS, potentially expanding access to neurologic imaging outside traditional hospital settings.

The study evaluated Hyperfine’s portable Swoop 64 milliTesla MRI scanner, a point-of-care imaging system designed to operate using a standard electrical outlet without specialized shielding infrastructure.

Software Upgrades Improve Imaging Performance

Investigators assessed imaging reproducibility before and after software enhancements using repeated scans in volunteers without neurologic disease.
Imaging protocols included fluid-attenuated inversion recovery and T2-weighted sequences. Following the software updates, image reproducibility improved across both imaging methods.

Structural Similarity Index Measure scores increased from 0.958 to 0.962 for T2-weighted imaging and from 0.931 to 0.943 for fluid-attenuated inversion recovery imaging, demonstrating improved consistency between scans.

Researchers then performed qualitative assessments in patients with neurologic disease, including individuals with MS and stroke.

Demyelinating Lesions Successfully Identified

The portable MRI system was able to identify both periventricular and juxtacortical demyelinating white matter lesions associated with MS.

Investigators also reported improvements in visualization of infratentorial lesions, which are often more difficult to detect using lower-field imaging systems.

The study authors noted that additional research is underway to compare the sensitivity of portable ultra-low field MRI with standard 3 Tesla MRI systems for detecting new T2 lesions in MS.

Potential Impact on Access and Monitoring

The portable MRI platform may help address several long-standing barriers in neurologic imaging, particularly for patients with mobility limitations or limited geographic access to advanced imaging centers.

Unlike conventional MRI systems, the ultra-low field device has a smaller physical footprint, lower operational requirements, and reduced infrastructure demands. Researchers said these characteristics may make the technology especially valuable in resource-limited or remote care environments.

The authors suggested the technology could support routine monitoring for patients receiving disease-modifying therapy, assessment of suspected relapses that do not involve the spinal cord, and imaging for patients with severe disability who may have difficulty tolerating conventional MRI procedures.

Implications for Managed Care and Neurology Practice

For managed care stakeholders, portable MRI systems could eventually offer opportunities to improve imaging access while reducing logistical burdens associated with hospital-based imaging services.

Expanded access to imaging may help facilitate earlier disease monitoring and potentially improve continuity of care for patients living in underserved regions.

However, investigators emphasized that larger validation studies are still needed before portable MRI can be considered a replacement for conventional high-field MRI in routine MS management.

The researchers concluded that image quality from ultra-low field portable MRI continues to improve with ongoing software development.

Future studies will focus on determining how effectively portable MRI can detect new inflammatory disease activity compared with standard high-field imaging systems currently used in MS care.

References

Traboulsee A, Kovacevic E, Balaji S, et al. Improvements in ultra-low field portable MRI and applications for multiple sclerosis. Presented at: Consortium of Multiple Sclerosis Centers Annual Meeting; May 27-29, 2026; Charlotte, NC.