Abstract #4080

MRI4ALL Hackathon: Under a Week Build of Open-Source Gradient Coils for a Low-Field MRI

Anja Samardzija¹, Yun Shang², Andrew Mao³, Karthik Lakshmanan³, Heng Sun¹, Bernhard Gruber^4,5, Kalina V Jordanova⁶, Jeff Short⁴, Vito Ciancia⁷, Philipp Amrein⁸, Sebastian Littin⁸, Leeor Alon^3,9, and Jason Stockmann⁴

¹Department of Biomedical Engineering, Yale University, New Haven, CT, United States, ²Department of Biomedical Engineering, Columbia University in the City of New York, New York City, NY, United States, ³Bernard and Irene Schwartz Center for Biomedical Imaging, New York University Grossman School of Medicine, New York City, NY, United States, ⁴Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Charlestown, MA, United States, ⁵BARNLabs, Muenzkirchen, Austria, ⁶NIST: National Institutes of standards and Technology, Boulder, CO, United States, ⁷LaGuardia Studio, New York University, New York City, NY, United States, ⁸Division of Medical Physics, Department of Diagnostic and Interventional Radiology, University Medical Center Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany, ⁹Center for Advanced Imaging Innovation and Research (CAI2R), Department of Radiology, New York University Grossman School of Medicine, New York City, NY, United States

Synopsis

Keywords: Low-Field MRI, Low-Field MRI

Motivation: High production costs limit the accessibility of MRI. To break this accessibility and cost barrier, we demonstrate that affordable gradients can be designed and built in less than two weeks using open-source software and conventional 3D printing.

Goal(s): To develop X, Y, and Z gradients for an ultra low-field Halbach MRI.

Approach: We used open-source software to design the gradients. The casing was 3D printed, and the coils were manually wound. The fields were measured using an open-source field-mapping probe.

Results: We constructed gradients that generated magnetic fields with great correspondence to simulated fields. 2D images were acquired with a fast spin-echo sequence.

Impact: Open-source software can be used to design, build, and test MRI gradient coils in a quick and affordable manner. This demonstrates that open-source software for design of MRI hardware can lead to more accessible MRI.

How to access this content:

For one year after publication, abstracts and videos are only open to registrants of this annual meeting. Registrants should use their existing login information. Non-registrant access can be purchased via the ISMRM E-Library.

After one year, current ISMRM & ISMRT members get free access to both the abstracts and videos. Non-members and non-registrants must purchase access via the ISMRM E-Library.

After two years, the meeting proceedings (abstracts) are opened to the public and require no login information. Videos remain behind password for access by members, registrants and E-Library customers.

Click here for more information on becoming a member.