Apparatus for the measurement of ore in mine haul vehicles is disclosed, the apparatus comprising: a portal, defining a portal zone, wherein a haul vehicle carrying ore is positionable in or movable through the portal zone; and at least one magnetic resonance (MR) sensor comprised in the portal. The MR sensor includes a main loop and a drive loop located above the main loop. A magnetic resonance sensor control system is provided and configured to control at least one of: the positioning of the at least one MR sensor relative to the portal zone and/or ore burden; the positioning of elements comprised in the MR sensor relative to each other; electromagnetic suppression characteristics of the at least one MR sensor; and/or sensitivity of the at least one MR sensor as a function of distance of the sensor from the ore burden.

RF coil assemblies are disclosed that include multiturn loops formed of conductors configured to receive RF signals from a patient during MRI. The multiturn loops include an inner loop and an outer loop that both lie substantially in a plane of the RF coil assembly. The inner loop is at least partially nested within the outer loop.

Various embodiments of the present disclosure are directed towards a magnetic resonance imaging (MRI) radio frequency (RF) coil. The MRI RF coil comprises a first conductive ring and a second conductive ring. A plurality of rung groups extend between the first and second conductive rings. The plurality of rung groups are spaced uniformly about the first conductive ring. Each of the plurality of rung groups comprises a plurality of conductive rungs extending between and connected to the first and second conductive rings. The plurality of conductive rungs of each of the plurality of rung groups are azimuthally separated from one another by a first azimuth angle. Each of the plurality of rung groups is separated from a neighboring rung group by a spacing that forms a window. Each of the windows have a second azimuth angle that is greater than the first azimuth angle.

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.

An antenna of a cable arrangement is provided for use in an MR local coil. An MR local coil with such a cable arrangement and a method for producing such a cable arrangement are provided. The cable arrangement includes an electrical conductor, which may have a material with a high electrical conductivity, such as copper for instance. The cable arrangement, in particular the electrical conductor, is embodied in a wavelike manner (e.g., the cable arrangement has a waveform).

A superconducting magnet may include magnet coils including at least one group of outer coils and at least one group of inner coils, a container including an accommodating space, at least one first chamber that is disposed within the accommodating space and houses the at least one group of the inner coils, and at least one second chamber that is disposed within the accommodating space and houses the at least one group of the outer coils. The at least one first chamber and the at least one second chamber may be configured to be filled with a cooling medium and are in fluid communication with each other. The cooling medium may be configured to cool the magnet coils to a superconducting state.

A patient table comprises: a curved base plate, a support face arranged over the curved base plate's concave side, a planar table top removable placed over the support face surface and the planar table top having a flat support surface opposite form the support face; the planar table top being contiguous to the support face. In particular in the patient table assembly with longitudinal sides (a) longitudinal groove(s) are provided along one or both the longitudinal sides in the flat support surface and at the longitudinal groove(s) indentations, in particular notches, are provided in the flat support surface and transverse to the groove(s).

Various methods and systems are provided for a flexible, lightweight and low-cost stretchable radio frequency (RF) coil of a magnetic resonance imaging (MRI) system. In one example, a RF coil assembly for a MRI system includes a loop portion comprising distributed capacitance conductor wires, a coupling electronics portion including a pre-amplifier; and a stretchable material to which the loop portion and coupling electronics portion are attached and/or enclosed therein.

Methods for forming conformal magnetic resonance imaging (MRI) receive coil devices having at least one receive coil with at least one capacitor are provided and include providing a 3-dimensional (3D) mold structure matching a curvilinear shape of interest, and forming a receive coil pattern on an outer surface of the 3D mold structure. The forming of the receive coil pattern may include spraying and/or depositing a conductive material and a dielectric material on the outer surface of the mold structure to form the receive coil pattern. The forming a receive coil pattern may include forming the receive coil pattern on an outer surface of a flat substrate sheet, and vacuum forming an inner surface of the flat substrate sheet to the outer surface of the mold structure to form a shape-conforming substrate sheet. The shape-conforming substrate sheet may be removed from the mold and used in MRI studies.

The present disclosure provides medical devices having MRI-compatible circuitry. Preferably, the devices do not project an enlarged profile, yet their position can be determined during an iMRI procedure. Illustrative embodiments of such a device can include a base surface, a first conducting layer disposed on the base surface, a first insulating layer disposed over at least a portion of the first conducting layer, and a second conducting layer disposed over at least a portion of the first insulating layer.