Abstract: A method for performing retrospective magnetic resonance imaging (MRI) artifact correction includes receiving, as input, an MRI image having at least one artifact; using a trained adversarial network for performing retrospective artifact correction on the MRI image, wherein the trained adversarial network is trained using unpaired artifact-free MRI images and artifact-containing MRI images; and outputting, by the trained adversarial network, a derivative MRI image related to the input, wherein the at least one artifact is corrected in the derivative MRI image.

Abstract: A magnetic resonance imaging apparatus according to an embodiment includes a static magnetic field generator, a transmit/receive system, and an acquiring means. The static magnetic field generator is configured to apply a second static magnetic field in addition to a first static magnetic field serving as a reference. The transmit/receive system is configured to perform transmitting and receiving at a single frequency. The processing circuitry is configured to acquire a magnetic resonance signal by employing the transmit/receive system. The transmit/receive system is configured to perform transmitting and receiving at a resonance frequency of a hydrogen nucleus in a state in which the first static magnetic field is applied and is configured to perform transmitting and receiving at a resonance frequency of a nuclide different from the hydrogen nucleus in a state in which the second static magnetic field is applied in addition to the first static magnetic field.

Abstract: A method of mapping transverse relaxation in a magnetic resonance (MR) scan data, comprises receiving a multi-echo spin-echo MR scan protocol comprising a plurality of MR imaging parameters, and for each echo of the multi-echo spin-echo MR scan protocol: generating, based on the parameters, a simulated echo modulation curve using a set of refocusing coherence pathways, for each of a plurality of predetermined transverse relaxation times; calculating, for each transverse relaxation time, diffusion attenuation based on a respective subset of the refocusing coherence pathways; and correcting the echo modulation curve using the diffusion attenuation. The method can also comprise comparing the scan data to the corrected echo modulation curve for each of at least a portion of the transverse relaxation values, and generating a displayed output comprising a map of transverse relaxation based on the comparison.

Abstract: The present disclosure discloses a method for measuring relaxation time of ultrashort echo time magnetic resonance fingerprinting. In the method, semi-pulse excitation and semi-projection readout are adopted to shorten echo time (TE) to achieve acquisition of an ultrashort T2 time signal; and image acquisition and reconstruction are based on magnetic resonance fingerprint imaging technology. A TE change mode of sinusoidal fluctuation is introduced, so that distinguishing capability of a magnetic resonance fingerprint signal to short T2 and ultrashort T2 tissues is improved, and multi-parameter quantitative imaging of the short T2 and ultrashort T2 tissues and long T2 tissues is realized.

Abstract: A fixing device includes a rotary endless fixing belt; a nip forming member disposed in an interior of the fixing belt; a rotary opposed member to contact the nip forming member via the fixing belt to form a nip together with the fixing belt; a heat source to directly heat the fixing belt at a portion other than the nip, including at lease one heat-generation part disposed outside lateral ends of a maximum area of the fixing belt where a recording medium passes through, wherein a recording medium carrying an unfixed image is conveyed to the nip and the fixing device fixes the unfixed image onto the recording medium; and a shielding member disposed between the fixing belt and the heat generation part of the heat source and configured to shield heat from the heat source at least at an area outside the maximum passing area of the recording medium.

Abstract: The present disclosure relates to a method that includes generating a first pulse at a first position along a geological formation with a plurality of antennae, wherein the first pulse comprises a Can-Purcell-Meiboom-Gill (CPMG) sequence, and wherein each antenna of the plurality of antennae is configured to generate NMR data via transmitting and receiving pulses into the geological formation.

Abstract: A method for correcting magnetic resonance (MR) object movements includes performing a recording of an MR object with multiple echo trains. k-space data pertaining to an echo train regarded as impaired by an MR object movement is corrected by linking the k-space data to corresponding k-space data reconstructed from k-space data of other echo trains by a PPA method.

Abstract: A developer supply container is detachably mountable to a developer receiving apparatus including a developer receiving portion provided with a receiving opening for receiving a developer, and a portion-to-be-engaged 11b integrally displaceable with the developer receiving portion. The developer supply container includes a discharging portion provided with a shutter opening for discharging the developer accommodated in the developer accommodating portion. An operation portion 21 displaces the developer receiving portion to bring the receiving opening into communication with the shutter opening by engagement between the engaging portion 21d and the portion-to-be-engaged 11b by a predetermined operation executed after the developer supply container is mounted to a predetermined position of the developer receiving apparatus.

Abstract: A magnetic resonance coil frame includes a frame structure, forming in between a receiving space for at least a body portion of a recumbent patient located in a lying plane, wherein at least a first air-operated body-fixation means having a variable shape for immobilizing the body portion is arranged outside the lying plane at a side of the frame structure facing the receiving space. Thus, immobilizing a patient during magnetic resonance imaging and/or treatment can be improved.

Abstract: A nuclear magnetic resonance apparatus (100) includes: a static magnetic field former (10) that forms a static magnetic field; an object holder (2) that holds an object in the static magnetic field; a pulse applicator (51a) that applies ?/2 pulse having the Larmor frequency of an atom to be measured to the object in the static magnetic field, and then applies a ? pulse having the Larmor frequency to the object at least a predetermined number of times (the predetermined number being two or more) at an interval of the predetermined period, the ? pulse being applied for a first time at a time point at which half the predetermined period has elapsed after applying the ?/2 pulse; and a detector (40) that detects the signal intensity of a spin echo signal generated from the object as a result of the last instance of the predetermined number of times of application of the ? pulse.

Abstract: A magnetic resonance imaging method according to an embodiment is a method for implementing a multi-shot Fast Spin Echo method. The method includes acquiring, for a k-space divided into a plurality of segments with respect to a phase encode direction, one of the segments including a central region of the k-space with one shot, wherein, during the one-shot acquisition for the central region of the k-space, refocus pulses corresponding to a first time period among refocus pulses applied a plurality of times have a flip angle decreasing tendency, and refocus pulses corresponding to a second time period following the first time period among the refocus pulses applied the plurality of times have a flip angle maintaining or increasing tendency.

Abstract: A device includes a rotator having a rotation axis, a belt, a nip forming member surrounded by the belt, a first stay surrounded by the belt and extending in a width direction parallel to the rotation axis, a holder holding the nip forming member, and an urging member urging the first stay toward the rotator. The nip forming member is configured to, with the rotator, pinch the belt to form a nip. The first stay includes a first end and a second end. The holder includes a first engaging portion positioned at a first end of the holder, and a second engaging portion positioned at a second end of the holder. The first engaging portion engages the first end of the first stay. The second engaging portion engages the second end of the first stay.

Abstract: A navigator echo is acquired during imaging, and when frequency is corrected based on phase change, the correction is performed with high accuracy without being affected by an offset caused by variations with time. An MRI apparatus including a navigation controller is configured to control an imaging unit acquiring an NMR signal, generate the navigator echo and collect navigation data during a predetermined measurement time, prior to collection of nuclear magnetic resonance signals for reconstructing an image of a subject. The phase change of the navigator echo is analyzed during the measurement time to calculate a correction value for correcting misalignment due to the phase change with a navigation analyzer that calculates a phase change amount relative to a reference, based on a difference between the phase change of the navigator echo and the phase change of the navigator echo serving as the reference during the measurement time.

Abstract: A method can include controlling radio frequency emission circuitry of a nuclear magnetic resonance unit to emit radio frequency energy according to a first set of parameters that comprises a first wait time for an even number of sequence repeats with positive and negative phases and to emit radio frequency energy according to a second set of parameters that includes a second wait time for a single sequence with a single phase, where the second wait time is greater than the first wait time; and acquiring, via antenna circuitry and analog-to-digital conversion circuitry, nuclear magnetic resonance.

Abstract: In a method and system for determining an optimal MRI scan nesting manner, selectable nesting manners are determined according to a preset number of simulated scan slices; one nesting manner from all the selectable nesting manners is sequentially selected; based on the selected nesting manner, a simulated MRI scan is performed using a preset pulse sequence, and a longitudinal magnetization strength after relaxation of each slice when scanning ends is calculated; when all nesting manners have been selected, based on the longitudinal magnetization strength after relaxation of each slice when scanning ends corresponding to each nesting manner, a nesting manner for which the longitudinal magnetization strength after relaxation is smoothest is selected, and the nesting manner is used as an optimal nesting manner for performing an MRI scan of the tissue.

Abstract: There are demands for stable connections of contact points between a process cartridge, including a development device, and an image forming device. A development contact point, a first contact point, and a second contact point are disposed in this order on the inside in a perpendicular direction with respect to an insertion direction in which a development device is inserted into an image forming apparatus.

Abstract: An MRI system is provided. The system may obtain a first set of MRI data relating to a subject acquired by an MR scanner in a first acquisition when the subject reaches a first T1 weighting level, and obtain a second set of MRI data relating to the subject acquired by the MR scanner in a second acquisition when the subject reaches a second T1 weighting level different from the first T1 weighting level. The system may also determine a target value of a reference coefficient associated with a first B1 inhomogeneity in the first acquisition and a second B1 inhomogeneity in the second acquisition based on the first and second sets of MRI data.

Abstract: Each of first and second glasses to be cleaned has a first edge and a second edge. A cleaning system has a cleaning member having a contact surface adapted to contact a surface of the glass, and first and second holders that hold the cleaning member. A drive system moves the holder so as to perform an outward cleaning moving from the first edge toward the second edge and a return cleaning returning from the second edge to the first edge. At a start position of the outward cleaning, the holder is stopped so that a portion of the contact surface of the cleaning member is positioned inside the first edge, and at a start position of the return cleaning, the holder is stopped so that a portion of the contact surface is positioned inside the second edge.

Abstract: A method for suppressing interference signals during an image acquisition with a magnetic resonance tomography scanner that has an antenna and an interference signal sensor is provided. The magnetic resonance tomography scanner receives a reference interference signal via the interference signal sensor, receives a magnetic resonance signal via the antenna, and reduces a portion of an interference signal in the magnetic resonance signal as a function of the reference interference signal. During the reduction of the interference signal, the method takes into account the fact that the reference interference signal also has a signal portion of the magnetic resonance signal.

Abstract: An image forming apparatus includes an image bearing member, an exposure device configured to expose the image bearing member to form an electrostatic latent image thereon, and a developing device including a rotatable developing member configured to carry and feed a developer containing toner and a carrier to develop the electrostatic latent image formed on the image bearing member, and a magnet provided non-rotatably and stationarily inside the rotatable developing member including a developing magnetic pole, wherein magnetic chains formed by the carrier, on the rotatable developing member, magnetized by the magnet contact the electrostatic latent image formed on the image bearing member in a developing region of the rotatable developing member, wherein a maximum peak position where a magnetic flux density of the developing magnetic pole is maximum with respect to a normal direction of the rotatable developing member exists within a range of the developing region with respect to a rotational direction of th