Super-resolution T1 estimation
Quantitative high resolution T1 mapping from a set of low resolution T1-weighted images with different slice orientations
G. Van Steenkiste (Universiteit Antwerpen)
Dirk Poot (TU Delft - ImPhys/Quantitative Imaging, Erasmus MC)
Ben Jeurissen (Universiteit Antwerpen)
AJ den Dekker (Universiteit Antwerpen, TU Delft - Team Michel Verhaegen)
Floris Vanhevel (Universiteit Antwerpen)
Paul M. Parizel (Universiteit Antwerpen)
Jan Sijbers (Universiteit Antwerpen)
More Info
expand_more
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, 2016.
No files available
Metadata only record. There are no files for this record.