Long-T
Algorithms
Bone and Bones
/ diagnostic imaging
Calibration
Humans
Image Interpretation, Computer-Assisted
/ methods
Image Processing, Computer-Assisted
/ methods
Imaging, Three-Dimensional
Knee
/ diagnostic imaging
Ligaments
/ diagnostic imaging
Magnetic Resonance Imaging
Male
Muscle, Skeletal
/ diagnostic imaging
Phantoms, Imaging
Signal-To-Noise Ratio
Tendons
/ diagnostic imaging
Tibia
/ diagnostic imaging
bone
eddy currents
ligaments
musculoskeletal imaging
short-T2 imaging
tendons
Journal
Magnetic resonance in medicine
ISSN: 1522-2594
Titre abrégé: Magn Reson Med
Pays: United States
ID NLM: 8505245
Informations de publication
Date de publication:
02 2020
02 2020
Historique:
received:
03
04
2019
revised:
18
06
2019
accepted:
10
07
2019
pubmed:
11
9
2019
medline:
3
2
2021
entrez:
11
9
2019
Statut:
ppublish
Résumé
To perform direct, selective MRI of short-T Radial imaging was performed at 7T, acquiring both ZTE and gradient echo (GRE) signals created by bipolar gradients. Long-T Trajectory analysis and phantom imaging demonstrated that gradient imperfections were successfully addressed. Gradient history matching enabled consistency between antiparallel projections as required for deriving zeroth-order eddy current dynamics. Trajectory measurement provided individual echo times per projection that showed considerable variation between gradient directions. In in vivo imaging of knee, ankle, and tibia, the proposed approach enabled high-resolution 3D depiction of bone, tendons, and ligaments. Distinct contrast of these structures indicates excellent selectivity of long-T Weighted subtraction of ZTE and GRE data reconciles robust long-T
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
412-426Informations de copyright
© 2019 International Society for Magnetic Resonance in Medicine.
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