Disclosed is a magnetic resonance imaging apparatus and a magnetic resonance imaging method using same, the magnetic resonance imaging apparatus comprising: a pair of end coils disposed at the top and bottom ends, respectively, having a ring shape, and having a shape in which several spaces cut out of a circumferential shape are connected by switching module; a plurality of leg coils connecting the pair of end coils; and the switching module respectively disposed between the pair of end coils and the plurality of leg coils, wherein the switching module include a high frequency transmission/reception coil opened by a first frequency and shorted by a second frequency different from the first frequency.

Apparatus and method for imaging a patient in an MRI system. This includes a frame, and at least one assembly that includes an earpiece positioner connected to a reference position on the frame, a first lockable joint on the positioner; and an earpiece connected to a patient-proximal end of the positioner by a second joint, wherein the first earpiece is moveably positioned to a selected pitch angle, a selected yaw angle, and a selected one of a plurality of distances relative to the reference position on the frame. The first lockable joint is configured to be tightened to yieldably hold the first earpiece at the selected pitch and yaw angles, and at the selected one of the plurality of distances, relative to the reference position. Optionally a second substantially similar earpiece and assembly are provided. The earpiece(s) optionally include audio transducer(s) and/or RF coil(s).

An HF coil assembly for generating independent alternating magnetic fields in an examination volume of a magnetic resonance apparatus is presented, the HF coil assembly comprising a first coil pair of saddle coils and a second coil pair of saddle coils, each saddle coil having longitudinal conductor elements and curved conductor elements arranged along a common lateral surface of a circular cylinder having a cylinder axis. Each coil pair comprises curved conductor elements and longitudinal conductor elements which are interconnected at a high frequency. The saddle coils also have diagonal conductor elements and/or bridge elements that connect the longitudinal and curved conductor elements. The coil pairs are opposite to each other relative to the cylinder axis.

A head coil assembly includes a housing with a lower portion, an upper portion, a left portion, and a right portion, wherein each portion includes two or more radio-frequency (RF) coils, wherein the portions are sized and shaped to adjustably conform to a curvature of the subject's head for magnetic resonance (MR) imaging of the subject's head placed inside the housing, wherein the portions are operable to transition from an open position where the portions are sufficiently apart from each other to a closed position where the portions are adjusted to tighten a wrap around the subject's head along the curvature, and wherein the two or more RF coils in each portion are disposed in such manner that when the portions are operated to transition from the open position to the closed position, the RF coils of each portion remain decoupled to each other even along edges of each portion.

The present disclosure provides a system. The system may include a medical device, a couch, one or more imaging devices, and a control device. The medical device may include a cavity. The couch may be configured to support a subject. The one or more imaging devices may be configured to acquire image data. The image data may indicate at least one of a target portion of the subject or posture information of a user. The control device may be configured to control a movement of the couch based on at least one of position information of the target portion of the subject or the posture information of the user.

Provided is a device for acquiring a magnetic resonance image signal includes a plurality of top-hat dipole antennas having a length and an operating frequency which are adjustable depending on an image region and an antenna circuit module to adjust the operating frequency. The top-hat dipole antenna includes a pair of antenna leg parts linearly arranged while being spaced apart from each other, and a pair of top-hat parts provided at opposite distal ends of the antenna leg part to increase a current at the distal end of the antenna leg part by increasing a capacitance.

Systems and methods for data transmission may be provided. The system may at least include a data transmission module. The system may obtain MR signals from one or more RF coils. The system may generate, via a first portion of the data transmitting module, first data based on the MR signals. The system may generate, via a second portion of the data transmitting module, second data based on the first data. The second portion of the data transmitting module may connect to the first portion of the data transmitting module wirelessly. The system may further store the second data in a non-transitory computer-readable storage medium.

An ultra-high field radio-frequency (RF) transmit/receive apparatus radio-frequency (RF) transmit/receive apparatus for magnetic resonance (MR) systems, may include: a dipole-array based volume coil (2) with a plurality of straight dipole antennas (3); at least three circular conducting rings (4, 5, 6) radial surrounding the dipole-array based volume coil (2), the at least three circular conducting rings (4, 5, 6) being substantially parallel with each other, having a plurality of ports (9, 10) for receiving a set of quadrature drive signals, the RF coil apparatus further comprising at least two independent transmit/receive (T/R) RF channels (11, 12, 13, 14) for driving the dipole-array based volume coil (2) and the at least three circular conducting rings (4, 5, 6).

The present invention provides a damping mechanism comprising a first member comprising a base section, a resilient damping section and an enclosed chamber defined by the base section and an inner surface of the resilient damping section. The resilient damping section is centered about a rotation axis and the enclosed chamber is provided radially inward of the resilient damping section and configured to accommodate a deformation of the resilient damping section. A second member is attached pivotably to the base section of the first member to rotate around the rotation axis relative to the base section. A damping protrusion extends from the second member toward the resilient damping section. The resilient damping section comprises an outer surface facing away from the enclosed chamber which is configured to be engaged with the damping protrusion to produce the deformation of the resilient damping section and provide a damping to the rotation of the second member relative to the base section. According to the present invention, the damping mechanism is simple in structure and easy to manufacture and assemble.

A permittivity apparatus that includes a permittivity material is received. The permittivity material includes one or more types of high permittivity materials. The permittivity apparatus is configured to be placed near or into a region of interest to be imaged. The permittivity apparatus is placed near or into the region of interest such that placing the permittivity apparatus near or into the region of interest changes a local stored electromagnetic energy distribution around or inside the region of interest. MRI images including the region of interest are then acquired. An MRI system includes radiofrequency coils and a permittivity apparatus that includes one or more types of high permittivity materials. The permittivity apparatus is configured to be placed near or into a region of interest to be imaged.