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Related Experiment Videos

[Determining global heart function with real time TrueFISP in one respiratory cycle].

B J Wintersperger1, K Nikolaou, O Mühling

  • 1Institut für Klinische Radiologie, Klinikum der Universität München - Standort Grosshadern. Bernd.Wintersperger@med.uni-muenchen.de

Der Radiologe
|March 3, 2004
PubMed
Summary

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Real-time cardiac MRI with parallel imaging significantly improves temporal resolution, enabling accurate ventricular volume and function quantification. This advanced technique overcomes limitations of standard methods for better diagnostic results.

Area of Science:

  • Cardiovascular Magnetic Resonance Imaging
  • Medical Imaging Physics

Context:

  • Real-time multislice cine MRI techniques often suffer from limited temporal resolution, leading to inaccuracies in ventricular volume measurements.
  • Standard segmented cine MRI techniques, while established, can be time-consuming and may not capture rapid cardiac motion effectively.

Purpose:

  • To evaluate the accuracy of a real-time cine MRI technique combined with parallel imaging algorithms.
  • To compare the performance of this enhanced real-time technique against standard segmented cine MRI methods for quantifying global ventricular function.

Summary:

  • Twelve patients underwent cardiac cine MRI using real-time multislice cine trueFISP with parallel acquisition techniques (iPAT) for improved temporal resolution (48 ms) in a single breath-hold.
  • Ventricular volumes (EDV, ESV), ejection fraction (EF), and myocardial mass were assessed and compared to standard single-slice cine trueFISP.

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  • The multislice approach demonstrated excellent correlation with standard methods for all evaluated parameters (EDV: 0.94, ESV: 0.97, EF: 0.99, myocardial mass: 0.93), with no significant differences found.

    • Impact:

    • Parallel acquisition techniques substantially improve temporal resolution in real-time cine MRI (<50 ms).
    • This enables accurate and exact quantification of global ventricular function, overcoming previous limitations.
    • The findings support the clinical utility of real-time cine MRI with iPAT for reliable cardiac assessment.