Super-resolution T1 estimation

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

Journal article (2017)

Authors

Gwendolyn Van Steenkiste Universiteit Antwerpen
D.H.J. Poot ImPhys/Quantitative Imaging , Erasmus MC
Ben Jeurissen Universiteit Antwerpen
A.J. den Dekker Team Michel Verhaegen - Mechanical, Maritime and Materials Engineering , Universiteit Antwerpen
Floris Vanhevel Universiteit Antwerpen
Paul M. Parizel Universiteit Antwerpen
Jan Sijbers Universiteit Antwerpen
Research Group
Team Michel Verhaegen (Mechanical, Maritime and Materials Engineering) (TU Delft)
More Info
expand_more

Published Date

2017

Language

English

Reuse Rights

Other than for strictly personal use, it is not permitted to download, forward or distribute the text or part of it, without the consent of the author(s) and/or copyright holder(s), unless the work is under an open content license such as Creative Commons.

Faculty

Mechanical, Maritime and Materials Engineering

Department

Delft Center for Systems and Control

Research Group

Team Michel Verhaegen

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.

Files

Mrm.26262.pdf
(pdf | 3.38 Mb)

Download not available