Obtaining T1-T2 distribution functions from 1-dimensional T1 and T2 measurements: the pseudo 2-D relaxation model
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Date
2016
Authors
Williamson, N.H.
Roding, M.
Glavosas, P.
Miklavcic, S.J.
Nyden, M.
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Journal of Magnetic Resonance, 2016; 269:186-195
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Abstract
We present the pseudo 2-D relaxation model (P2DRM), a method to estimate multidimensional probability distributions of material parameters from independent 1-D measurements. We illustrate its use on 1-D T1 and T2 relaxation measurements of saturated rock and evaluate it on both simulated and experimental T1-T2 correlation measurement data sets. Results were in excellent agreement with the actual, known 2-D distribution in the case of the simulated data set. In both the simulated and experimental case, the functional relationships between T1 and T2 were in good agreement with the T1-T2 correlation maps from the 2-D inverse Laplace transform of the full 2-D data sets. When a 1-D CPMG experiment is combined with a rapid T1 measurement, the P2DRM provides a double-shot method for obtaining a T1-T2 relationship, with significantly decreased experimental time in comparison to the full T1-T2 correlation measurement
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Link to a related website: http://www.sciencedirect.com/science/article/pii/S1090780716301562, Corrigendum to this journal article
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Copyright 2016 Elsevier Inc
Access Condition Notes: Postprint available after 1 October 2018