Abstract: An electromagnet for a Magnetic Resonance Imaging (MRI) apparatus. The electromagnet includes a coil configured to generate a magnetic field. The coil has a first axially outer surface, and a support element configured to mount the coil in the MRI. The support element is bonded to the first axially outer surface of the coil.

Abstract: 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.

Abstract: An NMR apparatus having a magnet system for generating a homogeneous static magnetic field B0 along a z direction, with a sampling head (1) comprising an RF transmitting and receiving coil system (2) and an opening (3) extending in the z direction for receiving a sample tube (4) containing a sample substance to be analyzed by means of NMR measurement, a compensation element (5) being present which at least partially compensates for disturbances in the homogeneous magnetic field B0 due to the sample substance and the material of the sample tube at the sample end of the sample tube that protrudes farthest into the sampling head during measuring operation, is characterized in that the compensation element is arranged outside the sample tube protruding into the sampling head during measuring operation of the NMR apparatus and in the z direction below the sample end, and is mounted so as to be movable, in particular displaceable, in the z direction.

Abstract: A technique facilitates tracking and assessing a fatigue life of a tubing string utilizing, for example, estimation of cycles to failure when used in a wellbore operation. The technique may comprise initially determining a fatigue life of a tubing string. Additionally, the technique comprises utilizing a sensing device, e.g. a magnetic flux leakage (MFL) device, to monitor the tubing string. When an anomaly, e.g. a new defect, is detected by the sensing device, a new fatigue life of the tubing string is determined based on the change. The new fatigue life may be used to estimate a fatigue life in terms of cycles to failure.

Abstract: Embodiments of the present application provide a magnetic resonance system and a transmission apparatus, a transmission method, and a pre-scanning method. The apparatus includes: a signal output unit used to generate and output a pulse signal; a radio-frequency amplifier used to amplify the pulse signal; a signal processing unit used to transmit, to a transmit coil of the magnetic resonance system, the signal amplified by the radio-frequency amplifier, receive and adjust a phase of the feedback signal, and output the phase-adjusted feedback signal to the signal output unit; and a determination unit used to acquire amplitude values of the feedback signal at different phases, and determine a forward power and/or a reverse power according to the amplitude values of the feedback signal at the different phases.

Abstract: According to an example aspect of the present invention, there is provided generating, Low-Field-Magnetic Resonance Imaging, LF-MRI, or Ultra-Low-Field Magnetic Resonance Imaging, ULF-MRI, data with respect to an image frame, determining a sensorwise agreement of the data with determined sensitivity profiles, and determining a mapping between the image frame and a sensor frame, such that the sensorwise agreement has been fulfilled.

Abstract: An apparatus for detecting RF signals in magnetic resonance testing procedure includes a multidirectional stretchable fabric and a flexible radio frequency (RF) coil. The flexible RF coil has a coil shape, and comprises conductive fiber stitched into the stretchable fabric in a plurality of repeating, non-linear stitch patterns. The plurality of stitch patterns collectively define the coil shape.

Abstract: In some embodiments, the present disclosure relates to a flexible magnetic resonance imaging (MRI) radio frequency (RF) array coil configured to operate in at least one of a transmit (Tx) mode or a receive (Rx) mode. The MRI RF array coil includes a first row of saddle coil elements. At least a first saddle coil element and a second saddle coil element are in the first row. The first and second saddle coil elements partially overlap with one another. Each of the first and second saddle coil elements include a left loop and a right loop that is coupled to the left loop by two connection segments.

Abstract: A magnetic resonance (MR) system may include a MR device and a MR-compatible drive. The MR device may include a scanner with a basic magnet for generating a homogeneous basic magnetic field. The MR-compatible drive may include an electric motor with a stator. The stator of the electric motor may include a dominant component of the basic magnetic field of the basic magnet.

Abstract: A local coil for magnetic resonance imaging is disclosed herein. The local coil includes an electrical circuit arrangement and a coaxial cable with an internal conductor and an external conductor surrounding the internal conductor. The two ends of the coaxial cable are connected to the electrical circuit arrangement and the internal conductor and the external conductor together form an antenna loop. The internal conductor and/or the external conductor has at least one interruption and the at least one interruption divides the internal conductor and/or the external conductor into at least two separate segments in each case.

Abstract: An image forming apparatus is capable of performing a second image forming operation in which a peripheral velocity ratio of a developer bearing member to an image bearing member becomes greater than that in a first image forming operation, and in which a potential difference between a developing bias applied to the developer bearing member and a supply bias applied to a supply member becomes a potential difference at which a urging force causing a developer at the contact portion between the developer bearing member and the supply member to move from the supply member to the developer bearing member becomes smaller than that in the first image forming operation, or becomes a potential difference at which a urging force causing the developer to move from the developer bearing member to the supply member is generated.

Abstract: An NMR magnet system uses a Stirling cooler having a cold head that extends into a housing of the system to cool a cold shield surrounding a cryogen vessel. The system may have a damper located between the cooler and the cold shield to reduce a transmission of vibration from the cooler to a magnet coil immersed in the cryogen. The damper may be passive, or may be part of an active damping system that uses an acceleration sensor to drive an active damper that compensates for cooler vibration. A compensation apparatus may use a stored characteristic of a signal distortion caused by the vibration and, in response to a trigger signal from the cooler, apply compensation to an excitation signal provided to a sample by an NMR probe in a bore of the magnet coil, or to an FID signal from the sample that is detected by the probe.

Abstract: A magnet suitable for use in a Magnetic Resonance Imaging (MRI) system. The magnet includes a magnet body having a bore extending therethrough along an axis of the body and a primary coil structure having at least four primary coils positioned along the axis. A first end coil is adjacent a first end of the bore of the magnet and a second end coil is adjacent a second end of the magnet. The first end coil and the second end coil are spaced apart by no more than 1000 mm and an imaging region produced by the primary coils is of a disk-type.

Abstract: An automatic protocolling system and methods involving a processor operable by way of a set of executable instructions storable in relation to a nontransient memory device, the set of executable instructions configuring the processor to: receive information relating to an initial protocol comprising an initial ordering of a plurality of sequences, the information comprising data relating to an interaction extent value of at least one of an imaging system and a patient as a function of time corresponding to each sequence in the plurality of sequences, the data relating to a time-integrated effect of each sequence in the plurality of sequences; and dynamically determine an alternative protocol comprising an alternative ordering of the plurality of sequences based on the time-integrated effect, whereby an alternative protocol is provided.

Abstract: A method for operating an MR system with a gradient pulse amplifier unit that has an end stage connected to a gradient coil with switching elements is provided. The gradient pulse amplifier unit includes a modulator for actuating the switching elements, and lockout switches interconnected in signal paths from the modulator to the switching elements. The gradient pulse amplifier unit includes feeder circuit breakers interconnected in at least some signal paths from the modulator to the switching elements. The circuit breakers are connected in the associated signal paths downstream of the lockout switches. A gradstop unit configured to receive at least one shut-off signal and actuate the lockout switches and the feeder circuit breakers. When the gradstop unit receives a shut-off signal, the gradstop unit actuates the lockout switches to lock out and the feeder circuit breakers to output an actuation signal to the switching elements.

Abstract: According to some aspects, an apparatus is provided comprising a deployable guard device, configured to be coupled to a portable medical imaging device, the deployable guard device further configured to, when deployed, inhibit encroachment within a physical boundary with respect to the portable medical imaging device. According to some aspects, an apparatus is provided comprising a deployable guard device, configured to be coupled to a portable magnetic resonance imaging system, the deployable guard device further configured to, when deployed, demarcate a boundary within which a magnetic field strength of a magnetic field generated by the portable magnetic resonance imaging system equals or exceeds a given threshold.

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 BO magnet to produce a magnetic field to contribute to a BO 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 power supply facility for supplying a magnetic resonance facility with electrical power includes a control facility, a network connection to a power network, and an electrical energy store, such as a battery. The network connection is configured for an installed power level that is lower than a maximum power level that may be demanded by the magnetic resonance facility. The control facility is configured, in the event that a power demand of the magnetic resonance facility exceeds the installed power, to provide the power from the network connection and the energy store.

Abstract: An image forming apparatus includes an image forming device that forms images in an image region on a sheet. An image fixing device includes heater elements disposed along a sheet-width direction. A controller is configured to identify a heater element that will overlap with an edge of the image region when a sheet is conveyed to the image fixing device. The controller calculates whether a shift of the image region by a shift amount less than a threshold would cause the heater element to not overlap. If so, the image forming device is controlled to form the image in a shifted image region and only those heater elements in the plurality of heater elements that overlap with the shifted image region are turned on when fixing the sheet if the image has been formed in the shifted image region.

Abstract: The disclosure relates to a magnetic resonance apparatus with a patient positioning apparatus comprising at least one coil plug-in element and a communication unit, wherein the magnetic resonance apparatus comprises an adapter apparatus with a communication interface and the adapter apparatus is adapted to couple the communication unit to the at least one coil plug-in element of the patient positioning apparatus.