Open-Structured RF Coil System for Accessible Magnetic-Particle Imaging

By separating the magnetic field generation function (permanent magnets) from the detection function (RF coils), the system achieves imaging performance equivalent to closed-bore systems while adopting an open configuration. This modular architecture enhances adaptability and compatibility with surrounding medical devices, allowing flexible integration into diverse clinical environments without requiring a confined bore structure.

The open-structured system with separated functional units provides universal applicability across different medical settings. The magnetization unit and detection unit can be independently positioned and configured to accommodate various patient conditions and integrate with other medical equipment, making the system versatile and compatible with surrounding medical devices while maintaining high imaging performance.

The system separates magnetic field generation (permanent magnets in magnetization unit) from signal detection (RF coils in detection unit), allowing the detection unit to be optimally positioned for high precision while maintaining an open structure for patient accessibility. This segmentation enables the detection coils to be placed in the most favorable position for signal reception without being constrained by a closed bore, thereby preserving imaging precision while improving access.

The patent introduces a magnetization unit as an intermediary component that generates the magnetic field using permanent magnets, while the detection unit with RF coils separately receives the NMR signals. This intermediary arrangement allows the detection system to operate with high precision in an open configuration, as the magnetization function is decoupled from the detection function, enabling optimal signal-to-noise ratio and imaging precision without requiring a closed bore structure.