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A Modified Propeller Sequence For MR Image Metal Artifact Reduction.

Penghui Luo, Jiantai Zhou, Changliang Wang

    Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference
    |December 3, 2025
    PubMed
    Summary
    This summary is machine-generated.

    This study improved Magnetic Resonance Imaging (MRI) quality by modifying the Propeller sequence to reduce metal and motion artifacts. The enhanced sequence significantly decreased artifacts, improving scan success and image clarity.

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    Area of Science:

    • Medical Imaging
    • Biophysics

    Background:

    • Magnetic Resonance Imaging (MRI) quality is frequently compromised by artifacts.
    • Metal implants and patient motion are significant sources of image degradation, leading to signal loss and phase errors.

    Purpose of the Study:

    • To enhance MRI image quality by reducing artifacts caused by metal and motion.
    • To develop a modified Propeller sequence for improved artifact correction.

    Main Methods:

    • Modified the standard Fast Spin Echo (FSE)-based Propeller sequence.
    • Incorporated a compensation gradient along the slice selection direction during readout.
    • Achieved a tilted field of view to unfold stacked signals and correct phase errors.

    Main Results:

    • The modified Propeller sequence effectively reduced metal-induced artifacts.
    • Mitigated the combined effects of metal and motion on MRI image quality.
    • Demonstrated improved image quality and increased scan success rates in phantom and in-vivo tests.

    Conclusions:

    • The modified Propeller sequence offers a robust solution for reducing common MRI artifacts.
    • This technique shows significant clinical potential for improving diagnostic accuracy in challenging imaging scenarios.
    • The approach enhances overall MRI quality and scan reliability.