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Oval gradient coils for an open magnetic resonance imaging system with a vertical magnetic field
- Source :
- Journal of magnetic resonance (San Diego, Calif. : 1997). 278
- Publication Year :
- 2016
-
Abstract
- Existing open magnetic resonance imaging (MRI) systems use biplanar gradient coils for the spatial encoding of signals. We propose using novel oval gradient coils for an open vertical-field MRI. We designed oval gradients for a 0.3 T open MRI system and showed that such a system could outperform a traditional biplanar gradient system while maintaining adequate gradient homogeneity and subject accessibility. Such oval gradient coils would exhibit high efficiency, low inductance and resistance, and high switching capability. Although the designed oval Y and Z coils showed more heat dissipation and less cooling capability than biplanar coils with the same gap, they showed an efficient heat-dissipation path to the surrounding air, which would alleviate the heat problem. The performance of the designed oval-coil system was demonstrated experimentally by imaging a human hand.
- Subjects :
- Nuclear and High Energy Physics
Materials science
Hot Temperature
Biophysics
Thermal management of electronic devices and systems
01 natural sciences
Biochemistry
030218 nuclear medicine & medical imaging
03 medical and health sciences
0302 clinical medicine
Nuclear magnetic resonance
Optics
Electromagnetic Fields
0103 physical sciences
Low inductance
Homogeneity (physics)
Gradient system
medicine
Humans
010302 applied physics
medicine.diagnostic_test
business.industry
Spatial encoding
Magnetic resonance imaging
Equipment Design
Condensed Matter Physics
Hand
Magnetic Resonance Imaging
Magnetic field
Open mri
business
Algorithms
Subjects
Details
- ISSN :
- 10960856
- Volume :
- 278
- Database :
- OpenAIRE
- Journal :
- Journal of magnetic resonance (San Diego, Calif. : 1997)
- Accession number :
- edsair.doi.dedup.....b716020e42dfc0e48443f811b15dd803