Super-resolution T1 estimation: Quantitative high resolution T1 mapping from a set of low resolution T1 -weighted images with different slice orientations

Gwendolyn Van Steenkiste, Dirk H J Poot, Ben Jeurissen, Arnold J den Dekker, Floris Vanhevel, Paul M Parizel, Jan Sijbers

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

PURPOSE: Quantitative T1 mapping is a magnetic resonance imaging technique that estimates the spin-lattice relaxation time of tissues. Even though T1 mapping has a broad range of potential applications, it is not routinely used in clinical practice as accurate and precise high resolution T1 mapping requires infeasibly long acquisition times.

METHOD: To improve the trade-off between the acquisition time, signal-to-noise ratio and spatial resolution, we acquire a set of low resolution T1 -weighted images and directly estimate a high resolution T1 map by means of super-resolution reconstruction.

RESULTS: Simulation and in vivo experiments show an increased spatial resolution of the T1 map, while preserving a high signal-to-noise ratio and short scan time. Moreover, the proposed method outperforms conventional estimation in terms of root-mean-square error.

CONCLUSION: Super resolution T1 estimation enables resolution enhancement in T1 mapping with the use of standard (inversion recovery) T1 acquisition sequences. Magn Reson Med 77:1818-1830, 2017. © 2016 International Society for Magnetic Resonance in Medicine.

Original languageEnglish
Pages (from-to)1818-1830
Number of pages13
JournalMagnetic Resonance in Medicine
Volume77
Issue number5
DOIs
Publication statusPublished - May 2017
Externally publishedYes

Take-down notice

© 2016 International Society for Magnetic Resonance in Medicine.

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