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Abstract #2833

Design of novel loop coil array for B0 and gradient field generation

Yonghyun Ha1, Anja Samardzija2, Chenhao Sun1, Heng Sun2, Ryan Gross1, Gigi Galiana1, and R. Todd Constable1
1Radiology and Biomedical Imaging, Yale University, New Haven, CT, United States, 2Biomedical Engineering, Yale University, New Haven, CT, United States

Synopsis

Keywords: Low-Field MRI, Magnets (B0)

Motivation: By adjusting individual coil currents, a loop coil array can generate a uniform B0 field and it offers the flexibility to control gradient field direction making it suitable for compact MRI systems.

Goal(s): The goal is to show that the loop coil array produces a uniform and/or gradient magnetic fields.

Approach: The current values of individual loops for a uniform magnetic field were determined by ptimization to achieve either uniform field strength, whose orientation can be rotated, or a linear field gradient

Results: A method for calculating required current values has been presented, and simulations validate its effectiveness.

Impact: Suggested coil arrays offer the potential for developing more compact and lighter MRI systems by substituting traditional magnets and 3-axis gradient coils in current low-field MRI setups.

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