Simulation Study of A Human-Sized Open-Sided Magnetic Particle Imaging Scanner

Area of Science:

• Medical Imaging
• Biophysics
• Magnetic Particle Imaging

Background:

• Magnetic Particle Imaging (MPI) is an emerging medical imaging modality.
• Existing MPI systems often have limited aperture sizes, restricting their clinical applicability.
• There is a need for larger, open-sided scanners for in-vivo imaging applications.

Purpose of the Study:

• To design and characterize a human-sized, open-sided MPI scanner.
• To enable rapid 3D imaging with a large field of view.
• To evaluate the system's performance through simulations.

Main Methods:

• Designed a scanner with a 300 mm height aperture and a 200 mm diameter, 20 mm height cylindrical field of view (FOV).
• Implemented a 3D scanning strategy combining 2D electrical scans with mechanical rotation.
• Utilized focus coils for 2D electrical scanning and discretized rotational motion for mechanical scanning.

Main Results:

• Simulations demonstrated the capability to produce high-quality magnetic fields.
• The scanner design allows for 3D imaging within a few seconds of scan time.
• A reasonable power configuration was identified for the scanner's operation.

Conclusions:

• The designed human-sized, open-sided MPI scanner is feasible for rapid 3D imaging.
• The proposed scanning method effectively achieves 3D data acquisition.
• This development paves the way for advanced MPI applications in medical diagnostics.