G01R33/3802

METHOD OF ASSEMBLING A MAGNETIC RESONANCE DEVICE
20230148452 · 2023-05-11 ·

A cage with a fastening system (1) in a magnetic resonance device (MRD) is disclosed, said cage in an MRD comprising (a) M pole pieces (45) (M≥2); (b) N side magnets (20) (N≥2), said side magnets substantially enclosing said pole pieces and thereby defining a magnetic envelope and enclosed volume therein; (c) N side walls (10), said side walls substantially enclosing said side magnets; (d) P face walls (30) (P≥2); and (e) a plurality of fastening rods (100); wherein each of said fastening rods physically interconnects at least one pair of side walls, passing through at least one of said side magnets and at least one of said pole pieces.

NUCLEAR MAGNETIC RESONANCE SYSTEMS AND METHODS FOR NONINVASIVE AND IN-VIVO MEASUREMENTS USING A UNILATERAL MAGNET
20230148948 · 2023-05-18 ·

An apparatus for non-invasive evaluations and in-vivo diagnostics includes an open magnet, an RF antenna, and an NMR analytics logical circuit communicatively coupled to the RF antenna, wherein the open magnet is shaped to generate a static magnetic field that extends unilaterally into an object or internal organ of a subject when the open magnet is positioned against or in proximity to the object or subject, the static and RF magnetic fields shaped to generate a sensitive volume within a target region. The RF antenna or antenna array is configured to transmit RF pulses into the target region of the object or internal organ and receive sets of NMR signals generated by hydrogen or other elements, and the NMR analytics logical circuit is configured to obtain and analyze sets of NMR signals.

SYSTEM AND METHOD FOR ELECTROMAGNETIC INTERFERENCE MITIGATION FOR PORTABLE MRI SYSTEMS

Electromagnetic interference (“EMI”) is mitigated for portable magnetic resonance imaging (“MRI”) systems using postprocessing interference suppression techniques that make use of EMI detectors external to the MRI system imaging volume to detect EMI signals and remove them from acquired magnetic resonance data. EMI correction models, including static transfer function-based models, dynamic transfer function-based models, correction weight-based models, or parallel imaging kernel-based models can be used to remove the EMI-related artifacts from the magnetic resonance data.

HEAD-DEDICATED MAGNETIC RESONANCE IMAGING DEVICE
20230200674 · 2023-06-29 · ·

The present disclosure relates to a head-dedicated magnetic resonance imaging (MRI) device, wherein a head-dedicated image is acquired in a state in which a head of a subject is positioned in a center of a magnetic field of a main magnet installed in a housing, a local coil manufactured in in the form of being inserted into or worn in a human body of the subject is utilized to acquire an image of a selected portion to be examined (for example, an oral region, an ear region, and an eye region) of the head, or a vibration absorber installed around the housing absorbs vibrations caused by the Lorentz force generated by a magnetic field of the main magnet and a current applied to a gradient coil while the image is acquired in a state in which the housing is hung on an installation frame.

Shim coil arrangement with integrated spacers

A shim coil arrangement is provided for a magnetic resonance tomography system. The shim coil arrangement includes a printed circuit board, a plurality of spacers, and at least one shim coil. The plurality of spacers are arranged on the printed circuit board. The at least one shim coil is arranged on the printed circuit board.

Electromagnet assembly
11688537 · 2023-06-27 · ·

An electromagnet assembly has an inner magnet, an outer magnet, arranged around the inner magnet with an annular region extending between the inner magnet and the outer magnet, and a number of support elements extending through the annular region and dividing the annular region into a number of annular segments. The support elements are distributed in the annular region so as to form a small annular segment and a large annular segment.

Systems, devices, and methods for magnetic resonance imaging of infants

Provided herein are systems, devices, and methods to facilitate imaging an infant using a magnetic resonance imaging (MRI) device. A system for facilitating imaging an infant using an MRI device is provided herein, the system comprising a radio frequency (RF) coil assembly configured to be coupled to the MRI device and comprising a first RF coil configured to transmit RF signals during MRI and/or be responsive to MR signals generated during MRI and a helmet for supporting at least a portion of the infant's head, and an infant support to support at least a portion of the infant's body and configured to be coupled to the RF coil assembly. Further provided is an apparatus for coupling an infant support to an MRI device.

Assembly for thermal insulation of a magnet in a magnetic resonance apparatus
09845190 · 2017-12-19 · ·

An assembly for thermal insulation of an MR magnet system during such a transport has a container for accommodating an MR magnet, the container being equipped with thermal insulation, and the container has an opening for accommodating a cooling unit. The assembly further has a protective cap, such that the opening is sealed in a reversible manner by the protective cap, and the protective cap is likewise equipped with thermal insulation.

Electromagnet and assembly

An electromagnet for a Magnetic Resonance Imaging (MRI) apparatus. The electromagnet includes a coil configured to generate a magnetic field. The coil has a first axially outer surface, and a support element configured to mount the coil in the MRI. The support element is bonded to the first axially outer surface of the coil.

Magnetic resonance scanner and magnetic resonance imaging system

A magnetic resonance imaging system comprises a field generation unit and a supporting structure for providing structural support for the field generation unit, wherein the field generation unit comprises at least one magnet for generating a B0 magnetic field and an opening configured to provide access to an imaging volume positioned in the B0 magnetic field along at least one direction and wherein the at least one direction is angled with respect to a main direction of magnetic field lines of the B0 magnetic field in the imaging volume.