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Saturation-recovery as a T1-filter for T2-T2 exchange NMR.
1São Carlos Institute of Physics, University of São Paulo, PO Box 369, 13560-970 São Carlos, SP, Brazil.
Journal of Magnetic Resonance (San Diego, Calif. : 1997)
|March 10, 2019
Summary
Inversion-Recovery (IR) is difficult for T1-filtered T2-T2 exchange experiments with broad T1 distributions. Saturation-Recovery (SR) is proposed as a better alternative T1-filter for studying such samples, like porous media.
Area of Science:
- Magnetic Resonance Imaging
- Materials Science
Background:
- The Inversion-Recovery (IR) technique is a T1-filter for T2-T2 Exchange experiments.
- Studying samples with broad T1 distributions, such as porous media, presents challenges for IR as a T1-filter.
Purpose of the Study:
- To highlight the difficulties of using IR as a T1-filter for samples with T1 distributions.
- To propose Saturation-Recovery (SR) as a viable alternative T1-filter.
Main Methods:
- Investigated the application of Inversion-Recovery (IR) for T1-filtering in T2-T2 Exchange experiments.
- Evaluated the performance of Saturation-Recovery (SR) as an alternative T1-filter.
Main Results:
- IR demonstrates limitations when applied to samples exhibiting broad T1 relaxation time distributions.
- SR shows promise as an effective T1-filter for T2-T2 Exchange experiments on complex samples.
Conclusions:
- The limitations of IR as a T1-filter for samples with broad T1 distributions are significant.
- Saturation-Recovery (SR) offers a more robust solution for T1-filtering in T2-T2 Exchange experiments involving such samples.
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