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Magnetic Resonance Imaging01:24

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    Floating Cable Traps (FCTs) improve MRI-guided Microwave Ablation by reducing Radio Frequency interference. This enhances therapy monitoring accuracy and increases the Signal to Noise Ratio (SNR) for better image quality.

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    Area of Science:

    • Medical Imaging
    • Interventional Radiology
    • Biomedical Engineering

    Background:

    • Magnetic Resonance Imaging (MRI)-guided Microwave Ablation (MWA) enables real-time therapy monitoring via MRI-thermometry.
    • Radio Frequency (RF) interference from MWA generators can compromise the accuracy of MRI-based therapy monitoring.
    • Floating Cable Traps (FCTs) are employed to mitigate common mode currents on supply lines, aiming to improve signal integrity.

    Purpose of the Study:

    • To evaluate the impact of Floating Cable Traps (FCTs) on MRI signal quality during MWA procedures.
    • To assess the effect of FCTs on the Signal to Noise Ratio (SNR) and MRI spectrum.
    • To determine the efficacy of FCTs in reducing RF interference in MRI-guided interventions.

    Main Methods:

    • Investigated the use of Floating Cable Traps (FCTs) in conjunction with MWA generators and MRI systems.
    • Analyzed changes in the MRI spectrum before and after the implementation of FCTs.
    • Quantified the effect of FCTs on the Signal to Noise Ratio (SNR) of MRI images.

    Main Results:

    • FCTs effectively attenuate common mode currents on supply lines between MWA generators and ablation applicators.
    • Application of FCTs led to significant improvements in the MRI spectrum.
    • A notable increase in the Signal to Noise Ratio (SNR) was observed with the use of FCTs, enhancing image quality.

    Conclusions:

    • Floating Cable Traps (FCTs) are a user-friendly solution for reducing RF interference in MRI-guided interventions.
    • FCTs enhance the accuracy of MRI-thermometry by improving the MRI spectrum and SNR.
    • The selective attenuation of frequencies by FCTs contributes to higher quality MRI images during MWA procedures.