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Real-time cardiac MRI using DSP's.

P N Morgan, R J Iannuzzelli, F H Epstein

    IEEE Transactions on Medical Imaging
    |September 30, 1999
    PubMed
    Summary
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    This study introduces a real-time cardiac magnetic resonance imaging (MRI) system using digital signal processing (DSP). The new system achieves moderate video rates for cardiac imaging, offering enhanced flexibility and control.

    Area of Science:

    • Medical Imaging
    • Biomedical Engineering
    • Digital Signal Processing

    Background:

    • Real-time cardiac imaging is crucial for diagnosing heart conditions.
    • Existing real-time MRI systems have limitations in speed and flexibility.
    • Digital Signal Processing (DSP) offers potential for enhanced imaging performance.

    Purpose of the Study:

    • To implement a real-time cardiac magnetic resonance imaging (MRI) system utilizing DSP technology.
    • To achieve real-time acquisition, processing, and display of cardiac images.
    • To provide interactive control over imaging parameters and display functions.

    Main Methods:

    • Implementation of a real-time cardiac MRI system with DSP.
    • Development of a custom graphical user interface (GUI) for interactive control.

    Related Experiment Videos

  • Acquisition and processing of ungated cardiac movies at 20 images/s.

    • Main Results:

    • The system enables real-time display of cardiac movies at moderate video rates.
    • The GUI allows for interactive control of data acquisition and image display.
    • DSP implementation facilitates rapid parallel computations and fast data transfers.

    Conclusions:

    • The DSP-based real-time cardiac MRI system offers improved flexibility and scalability.
    • This technology advances cardiac imaging capabilities with potential for clinical applications.
    • While component costs are slightly higher, the performance benefits are significant.