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Literature DB >> 27918897

Saturation-inversion-recovery: A method for T₁ measurement.

Hongzhi Wang¹, Ming Zhao², Jerome L Ackerman³, Yiqiao Song⁴.

Abstract

Spin-lattice relaxation (T1) has always been measured by inversion-recovery (IR), saturation-recovery (SR), or related methods. These existing methods share a common behavior in that the function describing T1 sensitivity is the exponential, e.g., exp(-τ/T1), where τ is the recovery time. In this paper, we describe a saturation-inversion-recovery (SIR) sequence for T1 measurement with considerably sharper T1-dependence than those of the IR and SR sequences, and demonstrate it experimentally. The SIR method could be useful in improving the contrast between regions of differing T1 in T1-weighted MRI.

Entities: Chemical Disease Species

Keywords: Saturation inversion recovery; Spin-lattice relaxation; T(1) contrast; T(1) dispersion

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Water

Year: 2016 PMID： 27918897 PMCID： PMC5183529 DOI： 10.1016/j.jmr.2016.11.015

Source DB: PubMed Journal: J Magn Reson ISSN： 1090-7807 Impact factor: 2.229

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References

12 in total

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Saturation-inversion-recovery: A method for T₁ measurement.

1. Uniform-penalty inversion of multiexponential decay data. II. Data spacing, T(2) data, systemic data errors, and diagnostics.

2. T(1)--T(2) correlation spectra obtained using a fast two-dimensional Laplace inversion.

3. Multiplex phase cycling.

4. Categories of coherence pathways for the CPMG sequence.

5. A one-shot method for measurement of diffusion.

6. Rapid T1 measurement via decay-recovery decomposition: applications in fringe field and distributed relaxation experiments.

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Review 8. Resolution and uncertainty of Laplace inversion spectrum.

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