Open-Source Portable MRI Scanner Costs 95% Less Than Traditional Machines
The OSI² ONE brings low-field magnetic resonance imaging to low-resource clinics for €25,000–€60,000.
The Open Source Imaging Initiative (OSI²) has developed a portable MRI scanner that can be built for a fraction of conventional costs, potentially opening diagnostic imaging to clinics that could never afford traditional machines.
The €60,000 MRI
OSI² has created the OSI2 ONE, an open-source, low-field MRI scanner with estimated material costs between €25,000 and €60,000 (approximately $27,000 to $65,000). By comparison, full-sized MRI machines typically start around $1 million.
The device uses a permanent magnet generating a static magnetic field of 50 mT and features an inner bore diameter of approximately 30 cm. Its open-source design allows facilities to manufacture components using low-cost methods including 3D printing.
Already Being Deployed
The technology has moved beyond prototype stage. A team at the Universidad Paraguayo Alemana in Paraguay is currently building an OSI2 ONE unit destined for a clinic in Bolivia. This represents the kind of cross-border deployment that OSI² envisioned when creating open documentation for the entire system.
OSI² e.V., the non-profit behind the project, supports open-source medical imaging technology. The organization publishes complete specifications so that engineers and institutions worldwide can replicate and adapt the design.
Why Low-Field Matters
Traditional MRI machines require substantial infrastructure: shielded rooms, specialized cooling systems, and technical staff for operation. They remain immobile once installed. These requirements place them out of reach for rural hospitals and developing nations where diagnostic imaging could detect neurological conditions, tumors, and injuries at treatable stages.
Low-field systems like the OSI2 ONE sacrifice some image resolution compared to high-field clinical scanners, but they eliminate many infrastructure demands. The portable form factor means the device can reach patients rather than requiring patients to travel hundreds of kilometers.
Open Source as Access Strategy
The open-source approach serves a specific purpose: preventing vendor lock-in and enabling local adaptation. Facilities can source components regionally, repair systems without proprietary tools, and modify designs for specific clinical needs.
Multiple replications of the OSI2 ONE are now underway globally. Each build validates whether open-source medical hardware can achieve the reliability required for clinical use while maintaining the cost advantages that make deployment feasible in resource-limited settings.
The initiative represents a broader movement applying open-source principles to medical equipment, joining projects in ventilators, prosthetics, and diagnostic tools that prioritize accessibility over proprietary margins.