Abstract: An integrated electron spin resonance (ESR) circuit chip includes a chip substrate, a transmitter circuit, and a receiver circuit. The transmitter circuit and receiver circuit are disposed on the chip substrate. The transmitter circuit includes an oscillator circuit configured to generate an oscillating output signal and a power amplifier (PA) circuit configured to generate an amplified oscillating output signal based on the oscillating output signal. The receiver circuit receives an ESR signal from an ESR probe. The receiver circuit includes a receiver amplifier circuit configured to generate an amplified ESR signal based on the received ESR signal, a mixer circuit configured to receive the amplified ESR signal and to down-convert the amplified ESR signal to a baseband signal, and a baseband amplifier circuit configured to generate an amplified baseband signal based on the baseband signal.

Abstract: A magnetic resonance coil apparatus includes a receiving region for receiving a subregion of a patient to be examined, a housing shell unit enclosing the receiving region, and an antenna unit for picking up magnetic resonance signals. The magnetic resonance coil apparatus includes a camera unit with at least one light field camera element.

Abstract: In a method and apparatus for shimming a superconducting magnet that has a number of magnet coils electrically connected in series between a first current connection and a second current connection and a superconducting switch connected in parallel with the magnet coils, between the first current connection and the second current connection, with the first current connection being electrically connected to an external current lead, a first solid-state switching device is electrically interposed between the external current lead and the magnet coils; a number of superconducting shim coils electrically connected between the first current connection and the second current connection through a further solid-state switching device. Superconducting switches are each connected in parallel with a respective superconducting shim coil.

Abstract: An MRI system acquires a susceptibility-weighted image by acquiring a first RF echo signal in a first echo time for providing an image exclusive of susceptibility-weighting and acquiring a second RF echo signal in a second echo time longer than the first echo time for providing an image including susceptibility-weighting. A compensation gradient field is applied for compensating for field inhomogeneity and in response, a third RF echo signal is acquired in a third echo time longer than the second echo time. First, second and third images are generated in response to data derived from the first, second and third RF echo signals respectively and data of the first, second and third images is combined to provide image data representing an image compensating for magnetic resonance signal attenuation in the second image.

Abstract: A magnetic resonance imaging (MRI) method and apparatus are provided including a signal acquirer, a resonance frequency acquirer, and an RF driver. The signal acquirer is configured to acquire a free induction decay (FID) signal or an echo signal to generate a magnetic resonance image of a portion of an area of a subject. The resonance frequency acquirer is configured to acquire a resonance frequency of the portion of the area from the acquired FID signal. The RF driver is configured to generate a refocusing RF pulse having the acquired resonance frequency. The signal acquirer, the resonance frequency acquirer and the RF driver are configured to acquire and generate in each of sections of an RF pulse sequence.

Abstract: A method for operating a Magnetic Resonance (MR) imaging system includes generating radio frequency (RF) excitation pulses in patient anatomy to provide subsequent acquisition of associated RF echo data and generating slice select magnetic field gradients for phase encoding and readout RF data acquisition in the patient anatomy. The method also includes acquiring a plurality of slices of an image within a plurality of cycles, each of the plurality of slices being acquired within each of the plurality of cycles and causing, by a control processor, a RF signal generator and a gradient generator to change an order that each of the plurality of slices is acquired between consecutive cycles of the plurality of cycles.

Abstract: An apparatus for correcting distortion in medical images comprises a data receiving unit for receiving first medical image data, second medical image data and third medical image data, wherein the first medical image data has a first distortion of a first distortion type and the second medical image data has the first distortion and a second distortion of a second distortion type wherein the first distortion and the second distortion are cumulative, a representation unit for determining a representation of the first type of distortion by comparing the first medical image data to third medical image data, and for determining a second representation of the second distortion in the absence of the first distortion, and an image correction unit for correcting the second type of distortion in the second medical image data using the representation of the first type of distortion and the representation of the second type of distortion.

Abstract: A method includes recording a magnetic resonance (MR) spectrum with the aid of a high frequency (HF) coil and a magnetic resonance tomography (MRT) device. A static magnetic field results in a recording volume of the MRT device. The method also includes an automatic analysis of the MR spectrum by searching for two resonant signals in the form of a fat peak, a water peak, and a minimum between the fat peak and the water peak. Such an automatic analysis is used for an automatic decision as a function of a predeterminable criterion, as to whether a series, including a plurality of acts, or a single act is performed. The homogeneity of the static magnetic field is adjusted with the aid of at least one shim coil of the MRT device, and an HF pulse is calculated for fat saturation as a function of the result of the search.

Abstract: In a method and apparatus to acquire magnetic resonance data in a selected region of an examination subject without aliasing artifacts and with a reduced acquisition time, a spatially selective excitation pulse is radiated into the examination subject to excite nuclear spins in at least the selected region, and after radiating the excitation pulse, a series of at least two refocusing pulses is radiated into the examination subject, which generate variable flip angles adapted to a predetermined signal curve. At least the second refocusing pulse, and possibly every additional one of the refocusing pulses of this series, is a non-selective pulse. The spin echo signals generated by the refocusing pulses are acquired as magnetic resonance data. Gradients for spatial coding are activated before and after the spatially selective excitation pulse, the refocusing pulses and during the data acquisition. The acquired magnetic resonance data are stored and/or converted into image data for display.

Abstract: An electrophotographic apparatus includes a cylindrical electrophotographic photosensitive member, a charging roller that is disposed in contact with the electrophotographic photosensitive member and applies a direct current voltage to charge the electrophotographic photosensitive member, and a driving force transmission that transmits a driving force which causes rotation so that contact portions of the electrophotographic photosensitive member and the charging roller move in the same direction and the peripheral speed of the charging roller is higher than the peripheral speed of the electrophotographic photosensitive member, wherein the undercoat layer of the electrophotographic photosensitive member contains metal oxide and the undercoat layer has a volume resistivity of 1×107 ?·cm or more and 1×1014 ?·cm or less.

Abstract: In order to generate an RF excitation pulse together with a gradient curve to excite nuclear spins an arbitrarily shaped volume with a magnetic resonance system, a volume segment is prepared in which the volume is situated, such that only spins within the volume yield an MR signal portion in the subsequent detection of an MR signal. An MR signal is detected from the volume segment along a trajectory of k-space. At least one gradient for scanning k-space along the trajectory is switched during the detection. The RF excitation pulse is generated corresponding to the MR signal detected in a temporally inverted manner, and the gradient curve is generated corresponding to the temporally inverted curve of the at least one gradient to scan k-space.

Abstract: An arrangement includes a plurality of split ring resonators on a planar substrate. Each split ring resonator of the plurality of split ring resonators includes two mutually parallel ring structures of a metal conductor element spaced apart by the substrate. The two mutually parallel rings structures are respectively separated by at least one gap. At least two split ring resonators of the plurality of split ring resonators are positionable relative to one another such that the separated ring structures may be reciprocally guided through a gap of the respective other ring structures and interlock. Overlap regions may be produced by common ring structure inner surfaces.

Abstract: Methods, systems, computer programs, circuits and workstations are configured to generate MRI images using an Echo-Planar Double-Echo Steady State (EP-DESS) pulse sequence and/or a Repeated Imaging with Echo-planar Navigation and Acceleration (RIENA) pulse sequence and image processing protocol to generate clinical MRI images.

Abstract: In a method for controlling a magnetic resonance system with multiple radio-frequency transmission channels, via which parallel RF pulse trains are emitted in operation, as well as a magnetic resonance system and a pulse optimization device therefor, RF pulse trains respectively include at least one radio-frequency pulse. The RF pulse trains are initially determined so that a minimum B1 field maximum value is not exceeded by the radio-frequency pulse. In an examination subject-specific adjustment step, a current component-dependent B1 field maximum value is then determined, and the radio-frequency pulse is temporally shortened, with its amplitude being increased dependent on the current component-dependent B1 field maximum value.

Abstract: An electrical circuit with one or more semiconductor components (10) is characterized in that at least one semiconductor junction of at least one of the semiconductor components of the electrical circuit is disposed such that the average direction of motion of the charge carriers in the semiconductor junction is essentially parallel to the lines of force of the magnetic field B0, wherein the corresponding semiconductor component is disposed directly on a substrate (12), which is made of a material with good thermal conduction properties. In this way, undistorted characteristics of the semiconductor component used can be ensured despite the very strong magnetic field and the low operating temperatures.

Abstract: In a method and apparatus for automatic magnetic resonance imaging of a patient, an MR overall image is composed from several MR partial images. An MR overview image is received by a process that determines several scanning ranges based on the MR overview image. The MR scanning ranges are characterized by a length along a first direction. For all MR scanning ranges: the length along the first direction is set equal to the length of the longest MR scanning range in the first direction.

Abstract: An image forming apparatus capable of properly reproducing, even when a setting operation is interrupted by a cause unintended by a user, settings desired by the user, and thereby improving the user-friendliness. In a case where a cause of interruption of a job setting operation is generated at a timing other than a predetermined timing, information on the displayed screen and information on the job settings are stored. When the cause of interruption has been removed, the stored screen information and information on job settings are read out, and the interrupted state of the job setting operation is reproduced.

Abstract: A magnetic resonance apparatus which acquires navigator signals generated from a navigator region including a first portion and a second portion, the navigator signals acquired using a coil having a plurality of channels, is provided. The magnetic resonance apparatus includes a scan unit configured to execute a first navigator sequence for acquiring first navigator signals generated from the navigator region, a profile generating unit configured to generate first profiles each including position information on the first portion for every channel, a determining unit configured to determine correlations between the first profiles and a template, and a selecting unit configured to select each channel used to acquire the position information on the first portion based on the correlations.

Abstract: Provided herein is an image forming device including a main body; a consumable unit detachable from and attachable to the main body, and including a CRUM chip; a storage which stores a detection list including information on counterfeit CRUM chips and a conversion serial information list including a plurality of conversion serial information each of which is converted from serial information stored in the CRUM chip according to a plurality of different predetermined rules; and a controller to limit use of the consumable unit, when verifying the consumable unit based on at least one of the detection list and the conversion serial information list fails.

Abstract: A magnetic resonance imaging (MRI) system, method and/or computer readable medium is configured to effect MR imaging with reduced artifact by generating one or more image reconstruction maps from one or more prescans, acquiring a main scan dataset from a main MRI scan of an object, warping one or more image reconstruction maps to have geometric distortions substantially corresponding to geometric distortions in the main scan dataset, and forming a diagnostic MR image of the object using the main scan dataset and the warped one or more image reconstruction maps.