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Dissolution Dynamic Nuclear Polarization Instrumentation for Real-time Enzymatic Reaction Rate Measurements by NMR
Published on: February 23, 2016
Hyperpolarized singlet NMR on a small animal imaging system
Christoffer Laustsen1, Giuseppe Pileio, Michael C D Tayler
1Danish Research Centre for Magnetic Resonance, Copenhagen University Hospital Hvidovre, Hvidovre, Denmark.
Magnetic Resonance in Medicine
|August 2, 2012
Summary
Nuclear spin hyperpolarization enhances magnetic resonance imaging (MRI) sensitivity. Storing hyperpolarization in singlet states allows robust transfer and retrieval, promising for future clinical MRI applications.
Area of Science:
- Magnetic Resonance Imaging
- Nuclear Magnetic Resonance Spectroscopy
- Medical Imaging Physics
Background:
- Magnetic resonance imaging (MRI) faces sensitivity limitations, especially for low-gamma nuclei.
- Hyperpolarization techniques significantly improve MRI sensitivity.
- Storing hyperpolarization in singlet states offers a method to prolong signal lifetime.
Purpose of the Study:
- To demonstrate the transfer and retrieval of hyperpolarized (13)C spin order into and from singlet spin order.
- To assess the feasibility of this technique on a small animal MRI scanner.
- To explore the potential for in vivo and clinical applications.
Main Methods:
- Utilized nuclear spin hyperpolarization for (13)C spins.
- Employed singlet spin order storage and retrieval mechanisms.
- Performed experiments on a small animal magnetic resonance imaging scanner.
Main Results:
- Successfully transferred hyperpolarized (13)C spin order into singlet spin order.
- Demonstrated robust retrieval of magnetization from singlet spin order.
- Showcased sustained singlet spin order in high magnetic field without strong radiofrequency irradiation for spins with similar chemical shifts.
Conclusions:
- The transfer and retrieval of hyperpolarized spin order to and from singlet states is feasible on a small animal MRI scanner.
- This technique shows promise for overcoming sensitivity limitations in in vivo and clinical MRI.
- Robust singlet-to-magnetization conversion is achievable, paving the way for advanced MRI applications.
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