scholarly journals Fast high-resolution brain metabolite mapping on a clinical 3T MRI by accelerated 1H-FID-MRSI and low-rank constrained reconstruction

2018 ◽  
Vol 81 (5) ◽  
pp. 2841-2857 ◽  
Author(s):  
Antoine Klauser ◽  
Sebastien Courvoisier ◽  
Jeffrey Kasten ◽  
Michel Kocher ◽  
Matthieu Guerquin-Kern ◽  
...  
Keyword(s):  
High Resolution ◽  
Low Rank ◽  
Constrained Reconstruction ◽  
3T Mri ◽  
Brain Metabolite

Imaging of posterior tibial tendon dysfunction—Comparison of high-resolution ultrasound and 3T MRI

2015 ◽  
Vol 84 (9) ◽  
pp. 1777-1781 ◽  
Author(s):  
Michael A. Arnoldner ◽  
Michael Gruber ◽  
Stefanie Syré ◽  
Karl-Heinz Kristen ◽  
Hans-Jörg Trnka ◽  
...  
Keyword(s):  
High Resolution ◽  
Posterior Tibial Tendon ◽  
Posterior Tibial Tendon Dysfunction ◽  
3T Mri ◽  
Posterior Tibial

scholarly journals High-Resolution Cardiovascular MRI by Integrating Parallel Imaging With Low-Rank and Sparse Modeling

2013 ◽  
Vol 60 (11) ◽  
pp. 3083-3092 ◽  
Author(s):  
Anthony G. Christodoulou ◽  
Haosen Zhang ◽  
Bo Zhao ◽  
T. Kevin Hitchens ◽  
Chien Ho ◽  
...  
Keyword(s):  
High Resolution ◽  
Parallel Imaging ◽  
Low Rank ◽  
Cardiovascular Mri ◽  
Sparse Modeling

Efficient parallel reconstruction for high resolution multishot spiral diffusion data with low rank constraint

2016 ◽  
Vol 77 (3) ◽  
pp. 1359-1366 ◽  
Author(s):  
Congyu Liao ◽  
Ying Chen ◽  
Xiaozhi Cao ◽  
Song Chen ◽  
Hongjian He ◽  
...  
Keyword(s):  
High Resolution ◽  
Low Rank ◽  
Diffusion Data ◽  
Rank Constraint ◽  
Parallel Reconstruction

scholarly journals High resolution 3T MRI for the assessment of cervical and superficial cranial arteries in giant cell arteritis

2006 ◽  
Vol 24 (2) ◽  
pp. 423-427 ◽  
Author(s):  
Michael Markl ◽  
Markus Uhl ◽  
Oliver Wieben ◽  
Thomas Neß ◽  
Mathias Langer ◽  
...  
Keyword(s):  
High Resolution ◽  
Giant Cell Arteritis ◽  
Giant Cell ◽  
3T Mri ◽  
Cranial Arteries

scholarly journals Sparse/Low Rank Constrained Reconstruction for Dynamic PET Imaging

PLoS ONE ◽  
2015 ◽  
Vol 10 (11) ◽  
pp. e0142019 ◽  
Author(s):  
Xingjian Yu ◽  
Shuhang Chen ◽  
Zhenghui Hu ◽  
Meng Liu ◽  
Yunmei Chen ◽  
...  
Keyword(s):  
Pet Imaging ◽  
Low Rank ◽  
Dynamic Pet ◽  
Constrained Reconstruction

scholarly journals In-line high resolution PET and 3T MRI hybrid device for preclinical multimodal imaging

2014 ◽  
Vol 1 (S1) ◽  
Author(s):  
Juan J Vaquero ◽  
Paula Montesinos ◽  
Lorena Cussó ◽  
Veronica García-Vazquez ◽  
Manuel Desco
Keyword(s):  
High Resolution ◽  
Multimodal Imaging ◽  
3T Mri ◽  
Hybrid Device

scholarly journals Achieving High-Resolution Whole-Brain Slab 1H-MRSI with Compressed-Sensing and Low-Rank Reconstruction at 7 Tesla

2020 ◽  
Author(s):  
Antoine Klauser ◽  
Bernhard Strasser ◽  
Bijaya Thapa ◽  
Francois Lazeyras ◽  
Ovidiu Andronesi
Keyword(s):  
High Resolution ◽  
Compressed Sensing ◽  
Three Dimensions ◽  
Low Rank ◽  
7 Tesla ◽  
Brain Anatomy ◽  
Ultra High Field ◽  
Whole Brain ◽  
Low Sensitivity ◽  
Generalized Variation

Low sensitivity MR techniques such as magnetic resonance spectroscopic imaging (MRSI) greatly benefit from the gain in signal-to-noise (SNR) provided by ultra-high field MR. High-resolution and whole-brain slab MRSI remains however very challenging due to lengthy acquisition, low signal, lipid contamination and field inhomogeneity. In this study, we propose an acquisition-reconstruction scheme that combines a 1H-FID-MRSI sequence with compressed sensing acceleration and low-rank modeling with total-generalized-variation constraint to achieve metabolite imaging in two and three dimensions at 7 Tesla. The resulting images and volumes reveal highly detailed distributions that are specific to each metabolite and follow the underlying brain anatomy. The MRSI method was validated in a high-resolution phantom containing fine metabolite structures, and in 3 healthy volunteers. This new application of compressed sensing acceleration paves the way for high-resolution MRSI in clinical setting with acquisition times of 5 min for 2D MRSI at 2.5 mm and of 20 min for 3D MRSI at 3.3 mm isotropic.

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