Patent
Open mri magnet
TLDR
An open magnetic resonance imaging (MRI) magnet has first (12) and second (20) spaced-apart superconductive coil assemblies each including a toroidal-shaped coil housing (14,22) containing a superconductively main coil (40,46) and a super-conductive bucking coil (44,50) as discussed by the authors.Abstract:
An open magnetic resonance imaging (MRI) magnet having first (12) and second (20) spaced-apart superconductive coil assemblies each including a toroidal-shaped coil housing (14,22) containing a superconductive main coil (40,46) and a superconductive bucking coil (44,50). The bucking coil is spaced radially inward and radially apart from the main coil. The bucking coil carries an electric current equal in amperage, and opposite in direction, to the main coil. The bucking coils overcome the gross magnetic field distortions in the imaging volume of the main coils (created by the open space between the magnet's superconductive coil assemblies) to produce a magnetic field of high uniformity within the imaging volume.read more
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References
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Patent
Magnetic resonance imaging apparatus
TL;DR: In this paper, a magnetic resonance imaging (MRI) system is presented for highly precisely detecting and compensating body motions within a short processing time during radial scanning, which includes a control unit that applies radiofrequency magnetic fields and magnetic field gradients to a subject lying down in a static magnetic field and detects magnetic resonance signals generated from the subject.
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Mri system with open access to patient image volume
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TL;DR: In this paper, a magnetic resonance system having a compact magnet configuration for generating a static magnetic field is described. And the magnet and platform carrying the patient to be examined are so arranged as to be arbitrarily moved relative to one another.
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