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Updated: Jul 3, 2026
16:20
Hyperpolarized Xenon for NMR and MRI Applications
Published on: September 6, 2012
Agents for polarization enhancement in MRI.
Silvio Aime1, Walter Dastrù, Roberto Gobetto
1Dipartimento di Chimica I.F.M, Università degli Studi di Torino, V. P. Giuria 7, 10125, Torino, Italy. silvio.aime@unito.it
Handbook of Experimental Pharmacology
|July 16, 2008
Summary
Hyperpolarization techniques significantly boost Nuclear Magnetic Resonance (NMR) signal sensitivity for 13C-labeled molecules. These methods enable advanced pre-clinical imaging, including metabolic and vascular studies.
Area of Science:
- Nuclear Magnetic Resonance (NMR) spectroscopy
- Medical Imaging
- Biophysics
Background:
- Nuclear Magnetic Resonance (NMR) exhibits inherently low sensitivity due to Boltzmann equilibrium.
- Hyperpolarization methods can amplify NMR signals by up to 10^5, overcoming sensitivity limitations.
Purpose of the Study:
- To review hyperpolarization techniques for enhancing NMR signals from 13C-containing molecules.
- To present key applications of these enhanced signals in pre-clinical research.
Main Methods:
- Discussion of fundamental principles behind hyperpolarization methods.
- Focus on Dynamic Nuclear Polarization (DNP) and Para-Hydrogen Induced Polarization (PHIP) for 13C molecules.
- Overview of signal amplification strategies.
Main Results:
- Hyperpolarization significantly increases NMR signal detection.
- Demonstrated applications in pre-clinical vascular imaging and perfusion studies.
- Enabled novel molecular and metabolic imaging protocols.
Conclusions:
- Hyperpolarization is a powerful tool to enhance NMR sensitivity for 13C molecules.
- These techniques are crucial for advancing pre-clinical MR imaging and metabolic studies.
- Opens avenues for innovative diagnostic and research applications.
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