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.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10766116 | PMC |
| http://dx.doi.org/10.1109/imbioc56839.2023.10304882 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Prevalence and severity of alopecia lesions on gray bats, Myotis grisescens, peaks during lactation.
PLoS One
December 2024
School of Natural Resources, University of Tennessee, Knoxville, TN, United States of America.
Article Synopsis
- In 2022, researchers observed gray bats with notable fur loss (alopecia), indicating potential health issues related to reproductive stages and other stress factors.
- In 2023, an experiment was conducted to assess alopecia's prevalence, severity, and associated ectoparasites in gray bats, with findings revealing no mites causing fur loss and different prevalence rates between genders.
- The study showed that lactating female bats tend to experience more severe alopecia compared to males, and no significant body condition difference was found between bats with and without fur loss, suggesting the need for further research on stress and nutritional support for these bats.
Purpose: To develop and characterize the performance of a 128-channel head array for brain imaging at 10.5 tesla and evaluate the potential of brain imaging at this unique, >10 tesla magnetic field.
Methods: The coil is composed of a 16-channel self-decoupled loop transmit/receive array with a 112-loop receive-only (Rx) insert.
Frequency-independent dual-tuned cable traps for multi-nuclear MRI and MRS.
J Magn Reson
November 2024
Department of Electrical and Computer Engineering, Vanderbilt University, Nashville, TN 37232, USA; Vanderbilt University Institute of Imaging Science, Vanderbilt University Medical Center, Nashville, TN 37232, USA; Department of Radiology and Radiological Sciences, Vanderbilt University Medical Center, Nashville, TN 37232, USA. Electronic address:
Magnetic Resonance Imaging (MRI) and Magnetic Resonance Spectroscopy (MRS) of non-proton nuclei (X-nuclei) typically require additional proton imaging for anatomical reference and B shimming. Therefore, two RF systems exist, necessitating cable traps to block the unwanted common-mode current at both Larmor frequencies of H and X-nuclei. This study introduces a frequency-independent dual-tuned cable trap that combines a standard solenoid cable trap with a float solenoid trap to independently tune high and low frequencies without compromising performance.
View Article and Find Full Text PDFStudy on the Relationship between Electron Transfer and Electrical Properties of XLPE/Modification SR under Polarity Reversal.
Polymers (Basel)
August 2024
School of Electrical and Electronic Engineering, North China Electric Power University, Beijing 102206, China.
Article Synopsis
- High-voltage direct-current (HVDC) cables face insulation issues during voltage polarity reversals, prompting the need for enhanced insulation performance in these components.* -
- The study utilizes nanocomposites made from SiC-SR and TiO-SR polymers, which were prepared through solution blending, to investigate their effectiveness in improving the cable insulation.* -
- Results indicate that the right concentrations of nano-SiC and TiO particles create deep traps within the silicone rubber matrix, reducing charge build-up and enhancing the dielectric strength of the double-layer insulation structure.*
Innovative approaches for augmenting dielectric properties in cross-linked polyethylene (XLPE): A review.
Heliyon
August 2024
Advanced Lightning, Power and Energy Research (ALPER), Department of Electrical and Electronics Engineering, Faculty of Engineering, University Putra Malaysia, 43400, Serdang, Malaysia.
Throughout the history of power systems, power cables have been used to securely and efficiently distribute electrical energy to the destined locations. Cross-linked polyethylene (XLPE), a commonly used insulator in high-voltage cables, have several desirable properties, such as low dielectric loss, high dielectric constant, high thermal conductivity, enhanced thermal stability, and superior resistance against electrical stress. However, further improvements of XLPE's performance are needed.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!