Development of High-Field Permanent Magnetic Circuits for NMRIMRI and Imaging on Mice
Joint Authors
Wang, Guangxin
Hou, Shulian
Xie, Huantong
Chen, Wei
Yang, Xiuhong
Source
Issue
Vol. 2016, Issue 2016 (31 Dec. 2016), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2016-02-29
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Abstract EN
The high-field permanent magnetic circuits of 1.2 T and 1.5 T with novel magnetic focusing and curved-surface correction are developed.
The permanent magnetic circuit comprises a magnetic yoke, main magnetic steel, nonspherical curved-surface magnetic poles, plugging magnetic steel, and side magnetic steel.
In this work, a novel shimming method is proposed for the effective correction of base magnetic field (B0) inhomogeneities, which is based on passive shimming on the telescope aspheric cutting, grinding, and fine processing technology of the nonspherical curved-surface magnetic poles and active shimming adding higher-order gradient coils.
Meanwhile, the magnetic resonance imaging dedicated alloy with high-saturation magnetic field induction intensity and high electrical resistivity is developed, and nonspherical curved-surface magnetic poles which are made of the dedicated alloy have very good anti-eddy-current effect.
In addition, the large temperature coefficient problem of permanent magnet can be effectively controlled by using a high quality temperature controller and deuterium external locking technique.
Combining our patents such as gradient coil, RF coil, and integration computer software, two kinds of small animal Micro-MRI instruments are developed, by which the high quality MRI images of mice were obtained.
American Psychological Association (APA)
Wang, Guangxin& Xie, Huantong& Hou, Shulian& Chen, Wei& Yang, Xiuhong. 2016. Development of High-Field Permanent Magnetic Circuits for NMRIMRI and Imaging on Mice. BioMed Research International،Vol. 2016, no. 2016, pp.1-11.
https://search.emarefa.net/detail/BIM-1099115
Modern Language Association (MLA)
Wang, Guangxin…[et al.]. Development of High-Field Permanent Magnetic Circuits for NMRIMRI and Imaging on Mice. BioMed Research International No. 2016 (2016), pp.1-11.
https://search.emarefa.net/detail/BIM-1099115
American Medical Association (AMA)
Wang, Guangxin& Xie, Huantong& Hou, Shulian& Chen, Wei& Yang, Xiuhong. Development of High-Field Permanent Magnetic Circuits for NMRIMRI and Imaging on Mice. BioMed Research International. 2016. Vol. 2016, no. 2016, pp.1-11.
https://search.emarefa.net/detail/BIM-1099115
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1099115