Abstract: In a method for improving the contrast of magnetization-transfer-prepared magnetic resonance imaging (MRI), an acquisition scheme comprising a plurality of inversion-recovery (IR)-imaging modules in an interleaved arrangement is selected, a number of magnetization-transfer (MT)-preparation modules is selected, a pulse sequence is generated by arranging at least one MT-preparation module of the number of MT-preparation modules between two successive IR-preparation modules of the interleaved IR-imaging modules or in front of the first IR-preparation module of a group of interleaved IR-imaging modules, and the pulse sequence for an MRI examination is applied or saved. Each IR-imaging module may include an IR-preparation module and a slice acquisition module.

Abstract: A holder base part for securing at least one camera housing to a vehicle part of a vehicle, a camera housing and a camera system are described. The holder base part has a retaining element with a securing portion, by which the retaining element is secured to the vehicle part, and which has a retaining portion by which the retaining element is separably connected to a connection element on the side of the at least one camera housing by a sliding movement along a notional connection axis. The retaining portion contributes to defining an insertion region into which the housing-side connection element is inserted for separable connection to the retaining element. The retaining element has a holder-locking element which interacts with a housing-locking element on the side of the camera housing to lock a connection between the retaining element and the connection element. The holder-locking element is arranged in the insertion region.

Abstract: A lens barrel and an exterior housing have a highly dignified appearance while maintaining excellent strength. The lens barrel has a fixation frame with an opening portion and a switch pedestal cover member that covers the opening portion. A fitted portion is provided on an inner surface side of the cover member and fitted into the opening portion to position the cover member with respect to the fixation frame when the opening portion is covered with the cover member. A fixation portion is provided on an inner surface side of the cover member and disposed inside the fixation frame when the opening portion is covered with the cover member. A spring member engages with the fixation portion and an inner wall surface portion of the fixation frame to bias the cover member towards an inside of the fixation frame. The exterior housing has features similar to the lens barrel.

Abstract: Provided are a handheld gimbal control method and control apparatus. The control method comprises the following steps: step 1) detecting a current mode of the handheld gimbal; step 2) when the handheld gimbal is in an operating mode, detecting whether the handheld gimbal is at a folding position, and when the handheld gimbal is at the folding position, enabling the handheld gimbal to enter a standby mode; and step 3) when the handheld gimbal is in the standby mode, detecting whether the handheld gimbal is at a non-folding position, and when the handheld gimbal is at the non-folding position, enabling the handheld gimbal to enter the operating mode, wherein there is no sequential order for the execution of steps 2) and 3). The control method of the present invention enables a user to rapidly and conveniently operate a handheld gimbal, without damaging an electric motor.

Abstract: In a method for correcting chemical shift artifacts, CSA, a convolutional neural network (CNN) may be provided, which is trained using acquisition data acquired in phase and in opposed phase by a DIXON MR method that may include acquisition data that contains CSA in mutually opposite directions and acquisition data that contains CSA only in one direction. The CNN may be trained to transform acquisition data obtained by the fast DIXON MR method so the acquisition data acquired by the fast DIXON MR method exhibits CSA that arise only in the same direction. The method may further include acquiring fast DIXON MR acquisition data using respective control instructions and applying the trained CNN to the acquisition data to minimize or entirely remove the CSA and to calculate corrected acquisition data. The CSA may arise in the magnetic resonance DIXON method when using fast DIXON MR to capture the echoes.

Abstract: An image pickup apparatus includes a camera main body, an eyepiece portion for viewing an object image, and a frame member having an opening through which light of the object image passes, and the eyepiece portion includes a bone conduction speaker.

Abstract: A method for evaluating gastric and upper small intestine motility and emptying in a gastrointestinal tract of a subject using magnetic resonance imaging includes administering a contrast agent to the subject; acquiring, using an MRI system, a set of MR data from the subject using a three-dimensional volumetric pulse sequence. The volumetric pulse sequence has a temporal resolution and a spatial resolution configured to facilitate measurement of volumetric and motility parameters. The method further includes reconstructing a set of images using the set of MR data, segmenting each image in the set of images to isolate a region of interest in the gastrointestinal tract of the subject, determining at least one volumetric and motility parameter based on the set of segmented images, and generating a report indicating the at least one volumetric or motility parameter.

Abstract: A support stand for supporting a magnetic resonance imaging (MRI) scanner while in operation. A MRI scanner includes a cylindrical housing having a lateral surface extending parallel to a horizontal patient bore to encapsulate a main cylindrical magnet. The cylindrical housing defines a longitudinal footprint dimension and a lateral footprint dimension. The support stand includes a base and a plurality of pillars extending upright from the base. Each respective pillar includes a first end mounted to the base and an opposing second end. The support stand also includes a vibration isolator mounted at the second end of the respective pillars to support the lateral surface of the cylindrical housing. The respective vibration isolators minimize transmission of environment borne vibrations to the MRI scanner or minimize transmission of MRI scanner generated vibrations to the environment.

Abstract: Systems and methods for operating a magnetic resonance imaging (MRI) system are provided. The MRI system includes a magnetics system and a power system configured to provide power to at least some of the magnetics system. The power system includes an energy storage device and a power supply configured to receive mains electricity. The MRI system also includes at least one controller configured to control the MRI system to operate in accordance with a pulse sequence at least in part by generating, by using power supplied by the power supply and supplemental power supplied by the energy storage device, at least one gradient field using at least one gradient coil of the magnetics system.

Abstract: An apparatus for incremental motion correction in medical imaging. The apparatus for motion correction in magnetic resonance imaging includes processing circuitry configured to estimate an intermediate image from a first section of k-space, the first section of the k-space corresponding to acquisition time points within a magnetic resonance scan of a subject, the corresponding acquisition time points within the magnetic resonance scan being associated with shots of the k-space determined to have minimal motion, estimate motion parameters of a second section of the k-space using the estimated intermediate image, combine data from the first section of the k-space with data from the second section of the k-space according to the estimated motion parameters, and reconstruct the combined data of the k-space to generate a final image.

Abstract: Provided is a camera module. The camera module according to one aspect of the present invention comprises: a housing; a substrate arranged on the housing; a substrate supporting member arranged on the housing and supporting the substrate; and a coupling member that fixes the substrate on the housing, wherein the substrate supporting member includes a body, an extending portion which extends from the body to be disposed between the substrate and the inside surface of the housing, a hole formed in the extending portion, and a bent portion which extends from the extending portion inwardly of the hole and towards the substrate.

Abstract: A radio frequency (RF) transmit—receive coil for a magnetic resonance (MR) imaging system includes an integrated vital signs detector for the detection of vital signs of a patient within the MR imaging system. The coil includes a contactless sensor system for monitoring vital signs, which makes it easier to measure vital signs of the patient.

Abstract: A magnetic resonance imaging (MRI) system and method for acquiring magnetic resonance (MR) images using a pulse sequence implementing driven equilibrium and quadratic phase cycling techniques is provided. The method includes, during a pulse repetition period of a pulse sequence and using a quadratic phase cycling scheme, applying a first RF pulse to deflect a net magnetization vector associated with the subject from a longitudinal plane into a transverse plane; after applying the first RF pulse, applying a first sequence of RF pulses each of which flips the net magnetization vector by approximately 180 degrees within the transverse plane; and after applying the first sequence of RF pulses, applying a second RF pulse to deflect the net magnetization vector from the transverse plane to the longitudinal plane.

Abstract: A photo booth having detachable upper cover includes a supporting stage, a rotatable shooting stand, and a driving assembly. The driving assembly is configured to drive the rotatable shooting stand to circumferentially rotate around the supporting stage. The supporting stage includes an upper cover and a reinforcement frame, and the upper cover detachably covers the reinforcement frame. The reinforcement frame includes a supporting ring, six supporting rods, and a connecting portion. The supporting ring is generally annular, and the six supporting rings and the connecting portions are disposed in a ring of the supporting ring. A first end of each of the six supporting rods is connected to an inner wall of the supporting rings, and a second end of each of the six supporting rods is connected to the connecting portion. The six supporting rods are uniformly disposed along a circumferential direction of the supporting ring.

Abstract: A camera is configured for use with a removable camera lens cover, which can be secured to or removed from the camera by a user without the use of a tool set. The mechanism which allows the lens cover to be secured to and removed from the camera includes a set of wires embedded into the lens cover and a set of wedges protruding from the lens wall of the camera. To secure the lens cover to the camera, the lens cover is placed onto the front of the camera and rotated until the wires align with corresponding wedges, securing the wires underneath the tapered surface of the wedges. To remove the lens cover from the camera, a force is applied outward and normal to the lens cover, causing the wires to flex outward and enabling the rotation and removal of the lens cover from the camera.

Abstract: A computer-implemented method of preoperatively planning a surgical procedure on a knee of a patient including determining femoral condyle vectors and tibial plateau vectors based on image data of the knee, the femoral condyle vectors and the tibial plateau vectors corresponding to motion vectors of the femoral condyles and the tibial plateau as they move relative to each other. The method may also include modifying a bone model representative of at least one of the femur and the tibia into a modified bone model based on the femoral condyle vectors and the tibial plateau vectors. And the method may further include determining coordinate locations for a resection of the modified bone model.

Abstract: Systems and methods are provided for susceptibility contrast imaging of nanoparticles at low magnetic fields. A susceptibility-based MRI technique, such as imaging with a balanced steady-state free precession (bSSFP) pulse sequence, may be used for imaging a contrast agent such as biocompatible superparamagnetic nanoparticles at ultra-low fields. The contrast agent and imaging technique may be used to improving the visibility of anatomical structures and detecting diseases, such as cancer, with low-field MRI.

Abstract: A camera module includes a lens barrel comprising a lens; an upper housing, coupled to an end of the lens barrel, including an extension portion extending from an external surface of the lens barrel; a lower housing, coupled to the upper housing, configured to have an internal space; and a first substrate, disposed below the lens barrel, comprising an image sensor. A surface of the extension portion is bonded to the lens barrel, and another surface of the extension portion is bonded to the lower housing, and a shape of the first substrate corresponds to a shape of the internal space of the lower housing.

Abstract: A method of performing magnetic resonance spectroscopic imaging (MRSI) measures neurochemical profiles over larger regions non-invasively. The method includes transmitting a multi-slice excitation pulse through tissue, the multi-slice excitation pulse configured to generate multi-slice MRSI signals. The method also includes performing density weighted concentric ring acquisition on the multi-slice MRSI signals. The method further includes receiving the generated multi-slice MRSI signals in a plurality of sensors disposed in various locations around the tissue. Imaging data is reconstructed based on the acquired imaging signals. A representation of the data is displayed.

Abstract: A method for planning an arthroplasty procedure on a patient bone. The method may include accessing generic bone data stored in a memory of a computer, using the computer to generate modified bone data by modifying the generic bone data according to medical imaging data of the patient bone, using the computer to derive a location of non-bone tissue data relative to the modified bone data, and superimposing implant data and the modified bone data in defining a resection of an arthroplasty target region of the patient bone.