Abstract: A radio frequency (RF) coil and a magnetic resonance imaging (MRI) system including the same are provided. The RF coil may include at least one RF coil element formed on a base of a cylindrical shape having a circular or oval cross-sectional shape, wherein coil elements of a first end portion and a second end portion of the at least one RF coil element have regions surrounding an outer circumferential portion of the base and bent in a z axis direction. The at least one RF coil element may include a first RF coil element and a second RF coil element.

Abstract: According to one embodiment, a magnetic resonance imaging apparatus includes data acquisition circuitry configured to generate magnetic resonance data; a digital encoder connected to receive the magnetic resonance data and configured to digitally encode the magnetic resonance data using an encoding scheme having a spectral null approximately at the Larmor frequency; and an electric data transmission line connected to transmit the digitally encoded magnetic resonance data.

Abstract: Embodiments relate to MRI coils and arrays comprising transmission lines to enforce periodic conditions. An example embodiment comprises a MRI RF coil array comprising: a plurality of assemblies, wherein each assembly of the plurality of assemblies comprises: a two-port device of that assembly, wherein the two-port device of that assembly is similar to the two-port device of each other assembly of the plurality of assemblies, and wherein the two-port device of that assembly comprises at least one associated inductor configured to, in a Tx mode, generate at least a portion of a B1 field; and a transmission line of that assembly, wherein a length of the transmission line of that assembly can be similar to a length of the transmission line of each other assembly of the plurality of assemblies, wherein the plurality of assemblies are connected together in a loop.

Abstract: A method of enhancing nerve function by directly stimulating the atoms transgressing the architecture of an ion channel utilizing one or more nuclear quadrupole resonant frequency stimuli targeted at the specific ions in their particular environment. By altering the spin state of the atoms, Na+ and K+ for example, they may more readily navigate the natural barriers necessary for both the rapid throughput and high selectivity that are characteristic of ion channels. The method and applications are primarily directed at inadequate nerve function resulting from injury or disease; however, a direct opposite approach may be used to block nerve responses for the purpose of pain management. The system includes feedback control of four signal parameters: frequency, interval, width and amplitude. The method may utilize multiple resonant stimulators, including implanted devices which can communicate with one another.

Abstract: A microwave resonator for an electron paramagnetic resonance probehead comprises a cavity body supporting an electromagnetic microwave resonance mode, at least one sample opening for inserting a sample in a sample container, at least one microwave opening for transmitting microwave radiation into the resonator, and at least one access opening for inserting and removing a modifier in a modifier vessel into or out of the cavity body. The modifier vessel is fixed in the at least one access opening, the modifier is a fluid comprising attenuator fluid and/or marker fluid and/or adaptor fluid, and the modifier vessel has an insert opening for filling and discharging the modifier gradually into or out of the cavity body. This improves performance greatly, enabling a gradual modification of specific experimental conditions without moving any mechanical parts in the cavity body, and without changing other experimental conditions for Q- and/or M- and/or D-variation.

Abstract: The present invention relates to a biosensor (1) which enables the concentration of a desired molecule inside a liquid in the medium, and essentially comprises at least one metallic plate (2) which functions as a ground plate, and which is preferably manufactured from aluminum, at least one dielectric substrate (3) which is located on top of the metallic plate (2), at least one split-ring resonator (4) which is realized on top of the dielectric substrate (3), and which is coated with a dielectric layer, at least two symmetrical antennas (5) which are realized on the same plane with the split-ring resonator (4) on the substrate (3), at least two ports (6) where a network analyzer is connected with the antennas (5) via SMA (SubMiniature Version A) connectors.

Abstract: 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.

Abstract: A medical radiofrequency coil may comprise: a base substrate; and a radio coil unit having a first coil element which has a rectangular shape and is formed along an edge of the inner peripheral surface of the base substrate, and a second coil element which is formed at the inner side of the first coil element and has a shape of paired paddles connected to each other. Therefore, the present inventive concept provides a radiofrequency coil, which can minimize an image distortion due to a beam-hardening artifact effect, and a medical imaging device including the same.

Abstract: A method is provided for performing a quality analysis of a radio frequency (RF) coil of a magnetic resonance imaging device. In an operational mode, the RF coil is configured to acquire MR signals from an object to be observed. In a test mode: a test signal is emitted by a RF transmitter; the test signal from the RF transmitter is received directly by the RF coil, wherein the RF coil provides an output signal; and a performance indicator is provided by analyzing the output signal of the RF coil for performing the quality analysis.

Abstract: A radio frequency coil according to an embodiment configured to receive a magnetic resonance signal from a subject by a plurality of coil elements including a first coil element and a second coil element. The first coil element and the second coil element are supported by a first housing and a second housing, the first housing and the second housing being rigid. The first housing and the second housing are connected by a flexible connector. The first coil element overlaps the second coil element at least part of the connector.

Abstract: An implantable medical assist device includes a medical device. The medical device has a housing and electronics contained therein. A lead provides an electrical path to or from the electronics within the medical device. A resonance tuning module is located in the housing and is connected to the lead. The resonance tuning module includes a control circuit for determining a resonant frequency of the implantable medical assist device and an adjustable impedance circuit to change the combined resonant frequency of the medical device and lead.

Abstract: Methods for operating a magnetic resonance apparatus and systems therefrom are provided. A method includes generating, via a coil former surrounding a subject or object of interest and disposed in the magnetic resonance apparatus, a plurality of field modes external to the subject or object, measuring for each of the plurality of external field modes, an associated internal field produced within the subject or object, generating, via the coil former a combination of external modes to produce a target internal field in the subject or object, and measuring nuclear magnetic resonance signals due to the resulting field from the combination to acquire an image or spectrum of the subject or object.

Abstract: Apparatus and techniques are described herein for nuclear magnetic resonance (MR) projection imaging. Such projection imaging may be used for generating four-dimensional (4D) imaging information representative of a physiologic cycle of a subject, such as including generating two or more two-dimensional (2D) images, the 2D images comprising projection images representative of different projection angles, and the 2D images generated using imaging information obtained via nuclear magnetic resonance (MR) imaging, assigning the particular 2D images to bins at least in part using information indicative of temporal positions within the physiologic cycle corresponding to the particular 2D images, constructing three-dimensional (3D) images using the binned 2D images, and constructing the 4D imaging information, comprising aggregating the 3D images.

Abstract: An enclosure for a magnetic resonance (MR) local coil and an MR local coil including the enclosure are provided. The enclosure has a first enclosure shell and a second enclosure shell. The first enclosure shell is arranged opposite the second enclosure shell. The enclosure is configured such that an MR local coil is positionable between the first enclosure shell and the second enclosure shell.

Abstract: A magnetic resonance imaging apparatus according to an embodiment includes a Radio Frequency (RF) coil configured to apply an RF magnetic field to a subject. The RF coil includes: a supporting member formed to have a circular cylindrical shape; and an electrically-conductive member which is arranged to extend along an axial direction of the supporting member and through which a radio frequency current flows when the RF magnetic field is generated. The electrically-conductive member includes: a first part provided on an outer circumferential surface of the supporting member; and a second part positioned farther away from an RF shield provided on an outer circumferential side of the RF coil than the first part is, in terms of a radial direction of the supporting member.

Abstract: A magnetic resonance imaging apparatus includes: a static magnetic field generating magnet configured to generate a static magnetic field in a space where a subject is arranged; a transmission unit configured to transmit a high frequency magnetic field to the subject; a reception unit configured to receive a nuclear magnetic resonance signal generated in the subject due to transmission of the high-frequency magnetic field thereto; a gradient magnetic field application unit configured to apply a gradient magnetic field which adds positional information to the nuclear magnetic resonance signal; a computer configured to control the transmission unit, the reception unit, and the gradient magnetic field application unit, and configured to process the nuclear magnetic resonance signal; and a display unit configured to display an image processed by the computer; and the computer performs a predetermined calculation processing.

Abstract: A magnetic resonance imaging (MRI) radio frequency (RF) receive coil assembly is disclosed. The assembly comprises a deformable pad which comprises an array of tracking coils disposed on a surface of the deformable pad, each tracking coil corresponding to a grid point of the surface and configured to provide information of a position of the grid point. One or more RF receive coils are disposed within the deformable pad.

Abstract: Systems, devices and methods allow inductive recharging of a power source located within or coupled to an implantable medical device while the device is implanted in a patient. The implantable medical device in some examples include a receive antenna configuration that may include at least one infinity shaped receive coil. One or more of the receive coils may be affixed to a ferrite sheet formed having a curved shape that conforms to a curvature on an inner surface of a portion of a housing of the implantable medical device so that the ferrite sheet and the receive coil or coils may be positioned adjacent to some portion of the curved inner surface with the ferrite sheet positioned between the inner surface and the receive coil or coils.

Abstract: A dipole antenna assembly includes at least two dipole antennas mechanically, but not electrically, connected to each other. The at least two dipole antennas cross at an intersection point and form dipole antenna arms starting from the intersection point. The dipole antenna arms are arranged in a half-space.

Abstract: A magnetic particle imaging apparatus includes magnets [106,107] that produce a gradient magnetic field having a field free region (FFR), excitation field electromagnets [102,114] that produce a radiofrequency magnetic field within the field free region, high-Q receiving coils [112] that detect a response of magnetic particles in the field free region to the excitation field. Field translation electromagnets create a homogeneous magnetic field displacing the field-free region through the field of view (FOV) allowing the imaging region to be scamled to optimize scan time, scanning power, amplifier heating, SAR, dB/dt, and/or slew rate. Efficient multi-resolution scanning techniques are also provided. Intermodulated low and radio-frequency excitation signals are processed to produce an image of a distribution of the magnetic nanoparticles within the imaging region. A single composite image is computed using deconvolution of multiple signals at different harmonics.

Abstract: A radiofrequency receive coil assembly can include a first conductive loop and a second conductive loop electrically connected at a node. The first and second conductive loops can extend into a treatment beam region of the radio frequency receive coil assembly through which one or more beams of ionizing radiation pass. The first conductive loop and the second conductive loop can overlap each other to provide electromagnetic isolation and/or can use a common conductor combined with a shared capacitor to provide electromagnetic isolation, with the shared capacitor or other electrical components, as well as any conductive loop overlaps, being positioned outside of the treatment beam region. These features can, among other possible advantages, minimize and homogenize attenuation of the beams of ionizing radiation by the radiofrequency receive coil assembly.

Abstract: Systems, devices and methods allow inductive recharging of a power source located within or coupled to an implantable medical device while the device is implanted in a patient. The implantable medical device in some examples include a receive antenna configuration that may include at least one infinity shaped receive coil. One or more of the receive coils may be formed having a curved shape that conforms to a curvature on an inner surface of a portion of a housing of the implantable medical device so that the receive coil or coils may be positioned adjacent to, and in some examples in direct contact with, some portion of the curved inner surface.

Abstract: An MRI antenna array including a housing and a substrate, antenna elements and circuitry encapsulated by the housing. The housing, antenna elements, and substrate are flexible to allow the housing to distort in three dimensions to closely conform to contours of a patient. The antenna elements may be formed from a flat weave mesh conductor. The flat weave mesh conductor allows the MRI antenna array to conform to the contours of a patient to provide three dimensional movement of the array. The flat weave mesh conduct has increased durability over a tight weave mesh of an elongate hollow cylinder conductor, allowing the flat weave mesh conductor to withstand additional flexing cycles.

Abstract: A method tor the preparation of a highly polarized nuclear spins containing sample of an organic or inorganic material, containing H or OH groups or adsorbed water molecules. Such highly polarized nuclear spins containing samples can be subjected to nuclear magnetic resonance (NMR) measurement and/or can be thawed and immediately administered to an individual undergoing a magnetic resonance imaging (MRI) scan. The method is based on generating unstable radicals on the surface of the sample in the presence of ionized environment followed by cooling the sample to cryogenic temperatures. A device for carrying out a particular step of said method is also discloses.

Abstract: According to one embodiment, an MRI apparatus includes a power transmitting unit a signal receiving unit and an image reconstruction unit. The power transmitting unit wirelessly transmits electric power to an RF coil device by magnetically coupled resonant type wireless power transfer. The signal receiving unit wirelessly receives a digitized nuclear magnetic resonance signal wirelessly transmitted from the RF coil device. The image reconstruction unit obtains a nuclear magnetic resonance signal received by the signal receiving unit, and reconstructs image data of an object on the basis of the nuclear magnetic resonance signal.

Abstract: A radio frequency coil is disclosed that is suitable for use with a magnetic resonance imaging apparatus. The radio frequency coil comprises first and second conductive loops connected electrically to each other by a plurality of conductive rungs. The conductive rungs each include a section that is relatively thin that will result in less attenuation to a radiation beam than other thicker sections of the rungs. Insulating regions are also disposed in areas of the radio frequency coil that are bound by adjacent rungs and the conductive loops. Portions of the insulating regions can be configured to provide a substantially similar amount of attenuation to the radiation beam as the relatively thin sections of the conductive rungs.

Abstract: The present disclosure relates to a radio-frequency coil for a magnetic resonance device, comprising: antenna units, conductor end ring segments connecting the antenna units, and capacitors. Here, a single antenna unit is curved in a plane parallel to a direction of a static magnetic field B0 (the positive direction of the z axis); the cross sections of all the antenna units in a x-y plane are spaced apart from each other at an angle and distributed symmetrically in a radial array; adjacent antenna units are connected with the end ring segments and the capacitors at two ends; the coil as a whole is an open dome shape surface structure and is sufficiently conformal to the surface of an object to be scanned.

Abstract: A photoelectric converter includes a silicon photomultiplier array and a light guide coupled to the silicon photomultiplier array. The silicon photomultiplier array is generated by splicing i×j silicon photomultipliers on a horizontal plane, where both i and j are integers greater than or equal to 2. A detector includes a scintillation crystal, an electronic system, a light guide and a silicon photomultiplier. A scanning device includes a detection apparatus and a rack, the detection apparatus includes a detector, and the detector includes the photoelectric converter.

Abstract: In an magnetic resonance imaging (MRI) system and a method for controlling a magnetic field gradient applied in the MRI system during an imaging sequence, a first gradient parameter representing a first maximum value of the applicable magnetic field gradients applied over time is determined in view heat generated by the applied magnetic field gradients. A second gradient parameter representing a second maximum value of the applicable magnetic field gradients applied over time is also determined in view heat generated by the applied magnetic field gradients, the second maximum value being different from the first maximum value. A current operating parameter of the MRI system is determined, and either the first gradient parameter or the second gradient parameter is selected for the imaging sequence, dependent on the determined current operating parameter.

Abstract: The present invention is directed to a method, system, and article of manufacture of a treatment environment engine on a mobile device to allow performance of workflow tasks inside of a high radiation medical procedure room. The treatment environment engine comprises a capturing module, a synchronization module, and a medical device control console component for capturing data (e.g., images or text) on the mobile device inside the medical procedure room and synchronizing the data via a wireless network with a medical device control console located outside the medical procedure room.

Abstract: A dummy fill element for positioning inside an active inductor component of an integrated circuit (IC), the inductor component, the IC and a related method, are disclosed. The active inductor component is configured to convert electrical energy into magnetic energy to reduce parasitic capacitance in an IC. The dummy fill element includes: a first conductive incomplete loop having a first end and a second end, and a second conductive incomplete loop having a first end and a second end. First ends of the first and second conductive incomplete loops are electrically connected, and the second ends of the first and second conductive incomplete loops are electrically connected. In this manner, eddy currents created in each conductive incomplete loop by the magnetic energy cancel at least a portion of each other, allowing for a desired metal fill density and maintaining the inductor's Q-factor.

Abstract: Systems, methods, and media for wireless radio frequency lesioning are provided. In some embodiments, a system for wireless radio frequency comprises: a wireless radiofrequency device, comprising: a receiving coil, a plurality of capacitors coupled in parallel to the receiving coil, a first electrode, and a second electrode, wherein a capacitor of the plurality of capacitors is connected between the first electrode and the second electrode, and wherein capacitances of the plurality of capacitors cause the receiving coil to pair with a transmitter at an operating frequency; a transmitter comprising at least one transmitting coil; and a radiofrequency generator configured to apply a radiofrequency signal at the operating signal to the transmitter.

Abstract: According to some aspects, a magnetic resonance imaging system capable of imaging a patient is provided. The magnetic resonance imaging system comprising at least one B0 magnet to produce a magnetic field to contribute to a B0 magnetic field for the magnetic resonance imaging system and a member configured to engage with a releasable securing mechanism of a radio frequency coil apparatus, the member attached to the magnetic resonance imaging system at a location so that, when the member is engaged with the releasable securing mechanism of the radio frequency coil apparatus, the radio frequency coil apparatus is secured to the magnetic resonance imaging system substantially within an imaging region of the magnetic resonance imaging system.

Abstract: A protective sleeve reduces electromagnetic energy propagation from the magnet bore of a magnetic resonance imaging device (MRD) to the surrounding environment and prevents electromagnetic energy in the surrounding environment from contaminating an MRI reading. The protective sleeve comprises a distal portion configured for insertion within the bore and a proximal portion attachable to the MRD aperture. The sleeve is configured for inserting a body part for insertion within the MRD's open magnet, with the imaged portion of the body part protruding from the distal end of sleeve into the MRD's volume of interest. The sleeve comprises, or is connected to, one or more sensors configured to detect movement, acceleration or dislocation of at least one portion or segment of the body part to be scanned.

Abstract: Some aspects comprise a tuning system configured to tune a radio frequency coil for use with a magnetic resonance imaging system comprising a tuning circuit including at least one tuning element configured to affect a frequency at which the radio frequency coil resonates, and a controller configured to set at least one value for the tuning element to cause the radio frequency coil to resonate at approximately a Larmor frequency of the magnetic resonance imaging system determined by the tuning system. Some aspects include a method of automatically tuning a radio frequency coil comprising determining information indicative of a Larmor frequency of the magnetic resonance imaging system, using a controller to automatically set at least one value of a tuning circuit to cause the radio frequency coil to resonate at approximately the Larmor frequency based on the determined information.

Abstract: A superconductor magnet apparatus (2) includes a superconductor bulk magnet (9), a cryostat (7) and a ferromagnetic shielding body (11). The bulk magnet has a superconductor bore (10), an axis (z) of rotational symmetry, and a maximum outer diameter ODbm in a plane perpendicular to the z axis. The superconductor bore has a minimum cross-sectional area Sbo in a plane perpendicular to the z axis. The cryostat has a room temperature bore (8), the bulk magnet is arranged within the cryostat and the room temperature bore is arranged within the superconductor bore. The shielding body has a shielding bore (12), the bulk magnet is arranged within the shielding bore and the shielding body extends beyond the bulk magnet at each axial end by at least ODbm/3. For an average cross-sectional area Sfb of the shielding body, Sfb?2.5*Sbo, and the shielding body is arranged within the cryostat.

Abstract: An antenna device includes a power feed coil and a ring-shaped conductor arranged about an axis and a ring-shaped conductor including first and second edge end portions in an axial direction and a cavity inward from the first edge end portion. At least a portion of the cavity overlaps with a coil opening of the power feed coil when seen from the radial direction. The power feed coil causes electric field coupling, magnetic field coupling, and/or electromagnetic field coupling with the cavity. The ring-shaped conductor defines and functions as a booster antenna of the power feed coil. A substantial coil opening defining and functioning as an antenna is larger than that when only the power feed coil is provided, thus facilitating coupling with a communication partner-side antenna coil.

Abstract: A gradient coil system for a magnetic resonance imaging system includes a plurality of gradient coils for applying a gradient magnetic field to a target volume; at least one coolant tube per gradient coil for cooling the gradient coil (110A-C, 210A-C). The coolant tubes are connected to respective flow control devices and a controller, which is configured to control each flow control device of the flow control devices for adjusting the flow of a coolant in the respective coolant tube. The controller is configured to control the flow control device on the basis of heat load caused by the respective gradient coil.

Abstract: According to one embodiment, a magnetic resonance imaging apparatus includes amplifiers, processing circuitry, and a power supplier. The amplifiers supplies power for each of a plurality of channels of gradient coils. The processing circuitry obtains, for each of the channels, a voltage gradient that represents a temporal change of a power supply voltage for supplying a current to the amplifiers. The power supplier supplies the power to an amplifier corresponding to a specific one of the channels on a priority basis in accordance with the voltage gradient.

Abstract: Methods and systems are provided for radio frequency (RF) coils for magnetic resonance imaging (MRI) systems. In one embodiment, a system comprises: a radio frequency (RF) coil array for a magnetic resonance imaging (MRI) system, including: a flexible shell including an inner layer; and a plurality of flexible RF coils embedded within the inner layer, with each RF coil of the plurality of RF coils including two distributed capacitance wire conductors. In this way, the RF coil array may deform in order to conform to a body of a patient.

Abstract: A gradient coil assembly (62) for use in a Magnetic Resonance Imaging (MRI) system includes primary coils (68), shield coils (72) and a supporting structure (10) arranged between the primary coils (68) and the shield coils (72). The supporting structure (10) includes at least a supporting element (12) including a first end face (14) and at least a first recess (24) with an opening (26) in the first end face (14). The first recess (24) extends in a longitudinal direction (18) of the supporting element (12) forming a tray for receiving a passive shim bar.

Abstract: A gradient coil according to an embodiment is configured to generate gradient magnetic fields along a plurality of axes in an imaging space in which a subject is imaged. The gradient coil includes a coil corresponding to at least one of the plurality of axes, wherein an electrically-conductive member of the coil is formed so as to be partitioned in a thickness direction by a plurality of electrically-insulative layers.

Abstract: An RF coil structure used for a magnetic resonance imaging (MRI) system includes a main loop coil having a first electric conductor and a second electric conductor facing the first electric conductor, and an auxiliary loop coil forming an angle ? with the main loop coil and having a third electric conductor and a fourth electric conductor facing the third electric conductor between the first electric conductor and the second electric conductor.

Abstract: Embodiments relate to a sensor for use in a magnetic resonance tomography unit and to a system including of a magnetic resonance tomography unit and a sensor. The sensor includes an energy supply device, a data transmission device and a first resonant antenna. The first resonant antenna includes a signal connection to the data transmission device and/or the energy supply device. A significant mismatch of the first resonant antenna exists between the impedance of the signal connection and the impedance of the first resonant antenna in free space at a first resonant frequency.

Abstract: A magnetic field monitor includes a magnetic field sensor that generates an electronic signal at a time period representing a magnetic field of the environment and includes a sensor transducer having a sensor bobbin, a primary coil, a secondary, over-winding coil, a sensor circuit, a controller connected to the primary coil, and a digitally controlled potentiometer connected to the secondary coil and controller. A non-linear output is converted to a quantitative linear output.

Abstract: A radio-frequency (RF) coil for use in a low-field magnetic resonance imaging system and methods of making the same are provided. The RF coil may include a substrate having a first and second side and a conductor. The conductor may include a first portion wound around the substrate from the first side to the second side at a first plurality of locations spaced between the first side and the second side and a second portion wound around the substrate from the second side to the first side at a second plurality of locations spaced between the first side and the second side, wherein the first plurality of locations alternate with the second plurality of locations spaced between the first side and the second side.

Abstract: Methods and apparatus for long read, label-free, optical nanopore long chain molecule sequencing. In general, the present disclosure describes a novel sequencing technology based on the integration of nanochannels to deliver single long-chain molecules with widely spaced (>wavelength), ˜1-nm aperture “tortuous” nanopores that slow translocation sufficiently to provide massively parallel, single base resolution using optical techniques. A novel, directed self-assembly nanofabrication scheme using simple colloidal nanoparticles is used to form the nanopore arrays atop nanochannels that unfold the long chain molecules. At the surface of the nanoparticle array, strongly localized electromagnetic fields in engineered plasmonic/polaritonic structures allow for single base resolution using optical techniques.

Abstract: An apparatus (100) includes: an outer shell (211); an inner vessel (212) disposed within the outer shell; a cold head (260) having a first stage (261) disposed within the outer shell, and having a second stage (262) for contacting an interior of the inner vessel; a vent (215) extending from the interior of the inner vessel to the exterior of the outer shell; first and second heat exchangers (302a, 302b); a first thermal shield (213) disposed between the inner vessel and the outer shell; and a second thermal shield (214) disposed between the inner vessel and the first thermal shield. The first thermal shield is thermally connected to the first stage of the cold head and the first heat exchanger and is thermally isolated from the inner vessel and outer shell. The second thermal shield is thermally connected to the second heat exchanger and is thermally isolated from the inner vessel, outer shell, first thermal shield, and cold head.

Abstract: Methods and systems are provided for radio frequency (RF) coil arrays for magnetic resonance imaging (MRI) systems. In an embodiment, a RF coil array assembly for a MRI system includes a compressible body; an upper posterior RF coil array including a first plurality of RF coils embedded in the compressible body; a lower posterior RF coil array including a second plurality of RF coils embedded in the compressible body; and a head and neck RF coil array removably coupled to the upper posterior RF coil array. The head and neck RF coil array includes a third plurality of RF coils embedded in the compressible body, and one or more neck straps configured to fold over a neck of a subject to be imaged by the MRI system.

Abstract: A magnetic resonance imaging apparatus includes a high-frequency coil and a coil supporting unit. The high frequency coil is disposed inside a gradient coil and that generates a high-frequency magnetic field in a static magnetic field. The coil supporting unit is formed with a substantially cylindrical shape and that supports the high-frequency coil. The coil supporting unit has a certain range including a magnetic field center and formed in parallel with an axial direction. Both ends of the coil supporting unit each have an internal circumference greater than the internal circumference of the certain range.