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Related Experiment Videos

MR artifacts: a review.

E M Bellon, E M Haacke, P E Coleman

    AJR. American Journal of Roentgenology
    |December 1, 1986
    PubMed
    Summary
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    Understanding the causes of Magnetic Resonance (MR) imaging artifacts is key to correcting them. This knowledge helps improve image quality by addressing both obvious and subtle issues in MR scans.

    Area of Science:

    • Medical Imaging
    • Radiology
    • Biomedical Engineering

    Background:

    • Magnetic Resonance (MR) imaging is a crucial diagnostic tool.
    • Image artifacts are common and can degrade the quality of MR scans.
    • Artifacts vary in severity, from image-wide to localized distortions.

    Purpose of the Study:

    • To explain the origins of common artifacts in MR imaging.
    • To provide strategies for artifact correction and amelioration.
    • To enhance the understanding of MR image generation and display.

    Main Methods:

    • Review of MR scanner design principles.
    • Analysis of MR imaging physics and operational theory.
    • Examination of image acquisition, generation, and display processes.

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    Main Results:

    • Artifacts arise from various factors in the MR imaging process.
    • Some artifacts are permanent, while others can be corrected through data reprocessing.
    • Subtle artifacts, like phase-shift or gradient-strength effects, require careful detection.

    Conclusions:

    • Knowledge of artifact causes is essential for effective correction in MR imaging.
    • Understanding scanner design and image generation aids in artifact management.
    • Improved artifact detection and correction lead to more reliable diagnostic imaging.