摘要:
A shoulder coil for a magnetic resonance imaging device includes a bottom part and one or more top part elements that may be moved relative to the bottom part. The one or more top elements each have at least one coil therein.
摘要:
A shoulder local coil system for a magnetic resonance tomography system for generating magnetic resonance images of a shoulder region of a person to be examined is provided. The shoulder local coil system includes a base plate, a fixed or removable cover plate over the base plate, and a flexible local coil arranged wholly or partially movably between the base plate and the cover plate.
摘要:
A shoulder coil for a magnetic resonance imaging device includes a bottom part and one or more top part elements that may be moved relative to the bottom part. The one or more top elements each have at least one coil therein.
摘要:
A local coil for magnetic resonance applications includes a rigid housing that radially surrounds a substantially cylindrical examination volume. Arranged in the rigid housing is a transmitting coil, by which an excitation signal may be applied to the examination volume. An object to be examined arranged in the examination volume may be excited by the excitation signal for emitting a magnetic resonance signal. The local coil includes a size-variable structure, in which an antenna assembly for receiving the magnetic resonance signal emitted by the object to be examined is arranged. The size-variable structure is arranged in the examination volume and is connected to the rigid housing. The size-variable structure is soft and flexible.
摘要:
A local coil for magnetic resonance applications includes a rigid housing that radially surrounds a substantially cylindrical examination volume. Arranged in the rigid housing is a transmitting coil, by which an excitation signal may be applied to the examination volume. An object to be examined arranged in the examination volume may be excited by the excitation signal for emitting a magnetic resonance signal. The local coil includes a size-variable structure, in which an antenna assembly for receiving the magnetic resonance signal emitted by the object to be examined is arranged. The size-variable structure is arranged in the examination volume and is connected to the rigid housing. The size-variable structure is soft and flexible.
摘要:
A receiver assembly of a magnetic resonance (MR) system for generating MR recordings of an examination object includes a plurality of reception channels for receiving and amplifying MR signals from reception coils of the MR system connected therewith. A calibration data memory for storing calibration data for the plurality of reception channels is arranged on the receiver assembly. The receiver assembly includes a data link for transmitting the calibration data to the MR system.
摘要:
Methods and a device for automatic detuning of a magnetic resonance tomography (MRT) local coil not connected to an MRT system are provided. The device has self-closing switches that are closed or open, depending on the presence of an MRT high-frequency field.
摘要:
The embodiments relate to methods and to magnetic resonance tomography systems having a shim system, where the shim system includes at least one global shim coil in an area surrounding the bore of the magnetic resonance tomography system, and where the shim system includes a local shim coil in a local coil of the magnetic resonance tomography system with a shim controller, where the shim controller embodied to define shim currents for the global shim coil and for the local shim coil.
摘要:
A material for a magnetic resonance installation is provided, wherein the material includes a support material and a magnetic doping material which is admixed in a specific proportion. The doping material exhibits an anisotropic susceptibility. In respect of the anisotropic susceptibility, the doping material exhibits a mean orientation along a predefined direction. An essentially homogeneous intermixture of the support material and the doping material is present within a volume of the material which is smaller than 1 mm3.
摘要:
A local coil with a plurality of magnetic resonance antenna elements and a plurality of test signal coupling units assigned individually or in groups to the plurality of magnetic resonance antenna elements is provided. In order to transmit a test signal, each test signal coupling unit of the plurality of test signal coupling units is connected via a star connection unit to a joint test signal connector and/or to a transmission cable of a transmit and/or receive chain of an assigned magnetic resonance antenna element of the plurality of magnetic resonance antenna elements.