Work

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

Year: 2023

Type: conference-paper

Abstract: Radiofrequency coils are utilized during transmit and receive of MRI signals. Cable traps remove common-mode current from the coaxial cable shield, which helps improve the image quality and reduces risks of burns to the patient. Traditional cable traps use wounded coaxial cables that limit the flexibility in the design process. Floating cable traps were introduced which eliminated any physical connection between the trap and coaxial cable, allowing complete flexibility in design and placement. However, the design process of floating cable traps is iterative and may take several rounds of 3D modeling. This work seeks to optimize the design process through the use of parametric design methodologies. The proposed methodology allows for 3D printing the floating cable trap after inputting the design parameters. The cable trap was able to attenuate currents in the coaxial shields to -48 dB, highlighting its performance and design robustness.

Source: IEEE MTT-S International Microwave Biomedical Conference (IMBioC)

DOI: 10.1109/imbioc56839.2023.10304882

Authors: Folk W. Narongrit, Thejas Vishnu Ramesh, Joseph V. Rispoli

Institutions: Purdue University West Lafayette, University of Virginia

Language: English

Topic: Advanced MRI Techniques and Applications

Subfield: Radiology, Nuclear Medicine and Imaging

Field: Medicine

Domain: Health Sciences

Open Access status: green

Funders: National Institutes of Health, National Institute of Biomedical Imaging and Bioengineering

Awards: Contrast-Enhanced Whole-Heart Coronary MRA at 3.0T, Removable second-order trap for common-mode current suppression in multi-nuclear MRI cabling