A method for performing magnetic resonance imaging is provided. The method includes providing a magnetic resonance imaging system comprising: a radio frequency receive system comprising a radio frequency receive coil, and a housing, wherein the housing comprises a permanent magnet for providing an inhomogeneous permanent gradient field, a radio frequency transmit system, and a single-sided gradient coil set. The method also includes placing the receive coil proximate a target subject; applying a sequence of chirped pulses via the transmit system; applying a multi-slice excitation along the inhomogeneous permanent gradient field; applying a plurality of gradient pulses via the gradient coil set orthogonal to the inhomogeneous permanent gradient field; acquiring a signal of the target subject via the receive system, wherein the signal comprises at least two chirped pulses; and forming a magnetic resonance image of the target subject.

A method for performing magnetic resonance imaging is provided. The method includes providing a magnetic resonance imaging system comprising: a radio frequency receive system comprising a radio frequency receive coil, and a housing, wherein the housing comprises a permanent magnet for providing an inhomogeneous permanent gradient field, a radio frequency transmit system, and a single-sided gradient coil set. The method also includes placing the receive coil proximate a target subject; applying a sequence of chirped pulses via the transmit system; applying a multi-slice excitation along the inhomogeneous permanent gradient field; applying a plurality of gradient pulses via the gradient coil set orthogonal to the inhomogeneous permanent gradient field; acquiring a signal of the target subject via the receive system, wherein the signal comprises at least two chirped pulses; and forming a magnetic resonance image of the target subject.

Systems and methods for obtaining simultaneous X-ray—magnetic resonance imaging (MRI) images are provided. A magnetic resonance X-ray CT (MRX) system can combine X-ray imaging and MRI in a cost-effective and relatively simple solution for improved imaging. During imaging of a subject, the X-ray source and X-ray detector can be simultaneously rotated around the subject, and the means for generating a magnetic field can also be rotated around the subject. The means for generating a magnetic field can be a plurality of permanent magnets.

Systems and methods for obtaining simultaneous X-ray—magnetic resonance imaging (MRI) images are provided. A magnetic resonance X-ray CT (MRX) system can combine X-ray imaging and MRI in a cost-effective and relatively simple solution for improved imaging. During imaging of a subject, the X-ray source and X-ray detector can be simultaneously rotated around the subject, and the means for generating a magnetic field can also be rotated around the subject. The means for generating a magnetic field can be a plurality of permanent magnets.

Systems and methods involving: a housing having a bore in which a subject to be imaged is placed; a main magnet configured to generate a volume of magnetic field within the bore, the volume of magnetic field having inhomogeneity below a defined threshold; gradient coils configured to linearly vary the volume of magnetic field as a function of spatial location; pulse-generating coils configured to generate and apply radio frequency (RF) pulses to the volume of magnetic field in sequence to scan the portion of the subject; shim gradient coils configured to perturb a spatial distribution of the linearly varying volume of magnetic field; and a control unit configured to operate the gradient coils, pulse-generating coils, and shim gradient coils such that only the user-defined region within the volume of magnetic field is imaged.

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.

Improved magnetic resonance imaging systems, methods and software are described including a low field strength main magnet, a gradient coil assembly, an RF coil system, and a control system configured for the acquisition and processing of magnetic resonance imaging data from a patient while utilizing a sparse sampling imaging technique.

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.

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.

A system method for magnetic configuration optimization may include one or more memories storing a field distribution dictionary mapping magnetic subcomponents to magnetic field distributions, and one or more processors to generate a plurality of magnetic configurations from the sub-components in the field distribution dictionary, for each configuration, transforming the magnetic field distribution of each of the sub-components to a location and orientation of the sub-component in the configuration, generate a total magnetic field distribution for the configuration by adding the transformed magnetic field distributions of the configuration, for each configuration, generate a performance score for the configuration from the total magnetic field distribution based on at least one first magnetic field parameter to be optimized, and select the configuration with the highest performance score.