Progress of ultra-high-field superconducting magnets in China

2021 ◽  
Author(s):  
Qiuliang Wang ◽  
Jianhua Liu ◽  
Jinxing Zheng ◽  
Jinggang Qin ◽  
Yanwei Ma ◽  
...  
Keyword(s):  
Magnetic Resonance ◽  
High Field ◽  
New Technologies ◽  
Superconducting Magnets ◽  
Fusion Energy ◽  
Critical Role ◽  
Modern Science ◽  
Particle Accelerator ◽  
Extreme Condition ◽  
Ultra High Field

Abstract High magnetic fields play a critical role in the development of modern science and technology, breeding many significant scientific discoveries and boosting the generation of new technologies. In the last few years, China has untaken a great deal of work on the application of Ultra-High-Field (UHF) superconducting magnet technology, such as for the Synergetic Extreme Condition User Facility (SECUF) in Beijing, the UHF nuclear magnetic resonance (NMR)/magnetic resonance imaging (MRI), nuclear fusion energy, particle accelerator, and so on. This paper reports the research status of UHF superconducting magnets in China from different perspectives, including design options, technical features, experimental progress, opportunities and challenges.

scholarly journals Quantitative sodium imaging using ultra‐high field magnetic resonance imaging in patients with Alzheimer's disease

2020 ◽  
Vol 16 (S5) ◽  
Author(s):  
Alexa Haeger ◽  
Arthur Coste ◽  
Cécile Lerman‐Rabrait ◽  
Julien Lagarde ◽  
Jörg B. Schulz ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Alzheimer’S Disease ◽  
Alzheimer's Disease ◽  
Magnetic Resonance ◽  
High Field ◽  
Resonance Imaging ◽  
Ultra High Field ◽  
Sodium Imaging

The connective tissue and ligaments of the distal interphalangeal joint: a review and investigation using ultra-high field 16.4 Tesla magnetic resonance imaging

2013 ◽  
Vol 39 (4) ◽  
pp. 398-404 ◽  
Author(s):  
D. Slattery ◽  
C. Aland ◽  
G. Durbridge ◽  
G. Cowin
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Connective Tissue ◽  
High Field ◽  
Three Dimensional ◽  
Interphalangeal Joint ◽  
Resonance Imaging ◽  
Distal Interphalangeal Joint ◽  
Ultra High Field ◽  
Distal Interphalangeal

This study reviews the literature on the anatomy of the connective tissues surrounding the distal interphalangeal joint and further characterizes the three-dimensional relationships of these structures with ultra-high field magnetic resonance imaging. Ten cadaver fingers, fixed in a solution of 5% agar and 4% formalin, were imaged utilising an ultrashield 16.4 Tesla ultra-high field magnetic resonance imaging, yielding a total of 4000 images. Images were analysed using Osirix™ (version 5.5.1 32 bit edition) for three-dimensional reconstruction. We found numerous conflicting descriptions of the connective tissue structures around the distal interphalangeal joint. Based upon our literature review and imaging studies we have defined precisely Cleland’s ligaments, the oblique proximal septum, Grayson’s ligaments, the dorsal plate, and the interosseous ligaments of the distal interphalangeal joint.

scholarly journals Ultra-High-Field Magnetic Resonance Spectroscopy in Psychiatry

2017 ◽  
Vol 8 ◽  
Author(s):  
Beata R. Godlewska ◽  
Stuart Clare ◽  
Philip J. Cowen ◽  
Uzay E. Emir
Keyword(s):  
Magnetic Resonance ◽  
Magnetic Resonance Spectroscopy ◽  
High Field ◽  
Resonance Spectroscopy ◽  
Ultra High Field

Advanced Musculoskeletal Magnetic Resonance Imaging at Ultra-high Field (7 T)

2011 ◽  
pp. 189-213 ◽  
Author(s):  
Siegfried Trattnig ◽  
Klaus Friedrich ◽  
Wolfgang Bogner ◽  
Klaus Scheffler ◽  
Oliver Bieri ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
High Field ◽  
Resonance Imaging ◽  
Ultra High Field

AB1098 STRUCTURAL ELEMENTS OF THE KNEE ENTHESES ASSESSED IN HEALTHY SUBJECTS WITH ULTRA HIGH FIELD MRI (150 MICRONS).

2020 ◽  
Vol 79 (Suppl 1) ◽  
pp. 1838-1838
Author(s):  
D. Roche ◽  
C. Michel ◽  
P. Daudé ◽  
A. Le Troter ◽  
C. Chagnaud ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Healthy Subjects ◽  
High Field ◽  
T2 Mapping ◽  
Pulse Sequences ◽  
Structural Elements ◽  
Resonance Imaging ◽  
Ultra High Field ◽  
Mineralized Zone

Background:Fibrocartilaginous enthesis is composed of different histological zones which are commonly referred to the tendon distal extremity (a lamellar tissue with a low cell density, collagen and connective tissue), the fibrocartilaginous zone (with chondrocytes), a progressively mineralized zone and the bone. The MRI visualization of the water content of entheses is challenging given the very short relation time so that entheses has been very poorly assessed using MRI (1).Objectives:The main objective of the study was to assess the structural elements of the knee enthesis based on the quantitative T2* measurements using Ultra High Field (UHF) MRI.Methods:Twelve healthy subjects without any osteoarticular pathology were included in the study after they provided their informed consent. 3D gradient echo sequence with a 4.3 ms echo time and T2* mapping were performed. The lateral internal, external and crossed ligaments, patellar and quadricipital tendons were assessed. T2* measurements were performed specifically on the quadricipital tendon.Results:The quadricipital tendon and the bone trabeculation could be visualized on the UHF MR image. The T2* mapping analysis illustrated a large value (16.4 ± 4 ms) for the subchondral bone and much lower values for the trabecular bone (11 ± 4.5 ms) and the different zones of the keen entheses (7.7 ± 1.9 ms).Conclusion:Based on T2* measurements performed using UHF MRI, the different structural elements of the knee entheses were distinguished. This quantitative stratification could be used to assess changes in pathological conditions such as SpA and trauma.References:[1]Benjamin M, Bydder GM. Magnetic resonance imaging of entheses using ultrashort TE (UTE) pulse sequences. Journal of magnetic resonance imaging: JMRI. 2007;25(2):381-9.Disclosure of Interests:None declared

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