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Related Experiment Videos

Quantitative 1H magnetization transfer imaging in vivo.

J Eng1, T L Ceckler, R S Balaban

  • 1Laboratory of Cardiac Energetics, National Heart, Lung and Blood Institute, Bethesda, Maryland 20892.

Magnetic Resonance in Medicine
|February 1, 1991
PubMed
Summary

Magnetization transfer between water and macromolecules influences proton relaxation in tissues. Saturation transfer imaging quantifies these rates, aiding in tissue characterization and understanding relaxation mechanisms.

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Area of Science:

  • Biophysics
  • Magnetic Resonance Imaging
  • Tissue Characterization

Background:

  • Proton (1H) spin-lattice relaxation in biological tissues is significantly influenced by magnetization transfer.
  • This transfer occurs between protons in free bulk water and those with restricted motion bound to macromolecules.
  • Saturation transfer has emerged as a valuable technique for investigating this process.

Purpose of the Study:

  • To further analyze the determination of magnetization transfer rates in biological tissues.
  • To investigate the time and power dependencies of saturation transfer.
  • To generate quantitative magnetization transfer rate constant images for in vivo applications.

Main Methods:

  • Analysis of time and power dependencies of saturation transfer.

Related Experiment Videos

  • In vivo quantitative imaging of magnetization transfer rate constants.
  • Application of saturation transfer techniques to biological tissues.

    • Main Results:

    • Quantitative magnetization transfer rate constant image maps were successfully acquired from the kidney in vivo.
    • The study analyzed the time and power dependencies of saturation transfer for improved rate determination.
    • Demonstrated the feasibility of generating rate constant images.

    Conclusions:

    • Magnetization transfer rate constant images can be generated in vivo.
    • These images hold potential for quantitative tissue characterization.
    • The findings contribute to understanding tissue-specific proton (1H) relaxation mechanisms.