Parametric Design of a 3D-Printed Removable Common-Mode Trap for Magnetic Resonance Imaging.

Area of Science:

• Medical Imaging
• Electrical Engineering
• Materials Science

Background:

• Radiofrequency (RF) coils are essential for transmitting and receiving signals in Magnetic Resonance Imaging (MRI).
• Cable traps mitigate common-mode currents in coaxial cable shields, enhancing MRI image quality and patient safety by reducing RF-induced heating.
• Traditional cable traps offer limited design flexibility due to their integrated nature with coaxial cables.

Purpose of the Study:

• To optimize the design process of floating cable traps for MRI applications.
• To introduce a parametric design methodology for enhanced flexibility and efficiency.
• To enable direct 3D printing of floating cable traps based on input parameters.

Main Methods:

• Implementation of parametric design methodologies for floating cable traps.
• Utilizing 3D modeling and printing for rapid prototyping and fabrication.
• Characterization of the cable trap's performance in attenuating common-mode currents.

Main Results:

• The proposed parametric design methodology significantly optimizes the floating cable trap design process.
• The developed floating cable trap achieved a current attenuation of -48 dB in coaxial shields.
• The design demonstrates robustness and high performance in practical MRI environments.

Conclusions:

• Parametric design offers a flexible and efficient approach to developing floating cable traps for MRI.
• The optimized floating cable traps exhibit excellent performance in suppressing common-mode currents.
• This methodology facilitates rapid iteration and customization for improved MRI systems.