Abstract: Exemplary methods for quantitative mapping of physical properties, systems and computer-accessible medium can be provided to generate images of tissue magnetic susceptibility, transport parameters and oxygen consumption from magnetic resonance imaging data using the Bayesian inference approach, which minimizes a data fidelity term under a constraint of a structure prior knowledge. The data fidelity term is constructed directly from the magnetic resonance imaging data. The structure prior knowledge can be characterized from known anatomic images using image feature extraction operation or artificial neural network. Thus, according to the exemplary embodiment, system, method and computer-accessible medium can be provided for determining physical properties associated with at least one structure.

Abstract: Vehicle (1) comprising a driver cab (2) and a monitoring device (15) for monitoring a front dead angle area in front of the driver cab (2), the driver cab (2) presenting a front surface (F), the monitoring device (15) comprising: —a front camera (16) having a field of view, —an arm (17) movably mounted to the driver cab (2) between a retracted position, in which said arm (17) extends along the front surface (F), and an active position in which said arm (17) is spaced apart from the front surface (F), wherein the front camera (16) is mounted to the arm (17) so that the field of view images the front dead angle area when the arm (17) is in the active position.

Abstract: A computer-implemented method for capturing a user constructed map of bodily region of interest for remote telemedicine navigation includes receiving, by a user-device, a request for capturing data for constructing a model of the bodily region using a designated capture-device. The method further includes generating, by the user-device, a visual feedback for capturing the data. Generating the visual feedback includes displaying a representation of the bodily region, and modulating, in response to the capture-device scanning the bodily region, the representation with a first indicator that indicates a duration to maintain a position of the capture-device. Generating the visual feedback includes further modulating, in response to completion of scanning the bodily region, the representation with a second indicator that indicates completion of the scan.

Abstract: Methods and apparatus for sensing or measuring an electromagnetic field. The method entails excitation into a distribution of Rydberg states of atoms of a gas occupying a test volume coextensive with the electromagnetic field. Transmission along a path traversing the test volume of at least one probe beam of electromagnetic radiation is measured at one or more frequencies overlapping a spectral feature, and a physical characteristic of the electromagnetic field is derived on the basis of variation of the spectral feature. In various embodiments, the electromagnetic field may be place in interferometric relation with another electromagnetic field. Time-varying electric field amplitude, frequency, phase and noise spectral distribution may be measured, and thus AM and FM modulated fields, as well as magnetic fields of about 1 Tesla. The apparatus for measuring the electromagnetic field may be unilaterally coupled to a probe field and detector or array of detectors.

Abstract: An image capturing apparatus on which an accessory including a first mount is mountable includes a second mount. The second mount is configured to allow bayonet coupling to the first mount of the accessory. The second mount includes a plurality of terminals disposed in a circumferential direction, and a terminal holder configured to hold the plurality of terminals. Each of the plurality of terminals is electrically connectable to a terminal of the accessory. The terminal holder has a height level difference in a center-axis direction of the second mount. The plurality of terminals include a first terminal configured to be used to detect mounting of the accessory on the image capturing apparatus. The first terminal is disposed further in a mount direction of the accessory than the other terminals among the plurality of terminals on a first stage of the terminal holder.

Abstract: An electronic device includes an accommodating chamber configured to accommodate a camera module, one side, opposite to a photosensitive component of the camera module, of the accommodating chamber is provided with a light-permeable piece, the accommodating chamber is provided with a first opening communicating an internal with an external of the accommodating chamber, the first opening is provided with an opening/closing piece, and the opening/closing piece has a first position and a second position, the opening/closing piece is configured to close the first opening to seal the accommodating chamber at the first position and to open the first opening to discharge moist airflow at the second position.

Abstract: A fixing device for accurately fixing an optical assembly to a rear housing of an electronic device fixes the optical assembly in a predetermined position and includes a cover plate. The cover plate defines a hole and a limiting portion. The hole corresponds to a photosensitive portion of the optical assembly and the photosensitive portion is configured to protrude out of the cover plate. The limiting portion is configured to limit a movement of the optical assembly away from the rear housing before being fixed in position. The fixing device fixes the optical assembly in the predetermined position so that the assembly accuracy and efficiency are improved. An optical module including the fixing device, and an electronic device including the optical module are also provided.

Abstract: Systems and Methods for determining a position of an object introduced into a body. An RF pilot tone is generated and is radiated into the body. Response signals modulated by the radiating into the body are received by a plurality of MRI receiver coils arranged spatially distributed outside the body and are converted into respective measurement signals. From the measurement signals, the position of the object is determined.

Abstract: Systems and methods for improving calibration of MRI imaging using echo-planar imaging (EPI) include a multi-shot radio frequency (RF) excitation during a calibration phase and a processor that calibrates the k-space for a slice by acquiring k-space data through multi-shot EPI data acquisition for a plurality of interleaved segments in the slice, each divided into a predetermined number of readout lines. Each EPI data acquisition includes providing a series of frequency encoding pulses throughout a readout period equal to the predetermined number of readout lines, providing a series of phase encoding pulses during a middle portion of the readout period corresponding to a middle section of the k-space, capturing magnetic resonance signals during the middle portion. The frequency and phase encoding pulse each include a rewinder pulse before a spoiler pulse after the magnetic resonance signals are captured.

Abstract: An approach to estimate noise, Rician signal bias and true signal in magnitude signal data obtained with magnetic resonance imaging. The method uses multiple measurements at different scan parameter settings, also referred to as weightings, and an iterative algorithm to estimate noise, expected signal and associated Rician signal bias. Measurements at all measured weighting levels contribute to the ultimate estimation of the bias-free signal decay function. Therefore, of the so processed magnetic resonance image data, weighted signals can be computed at arbitrary weighting levels and with considerably better signal-to-noise ratio than the originally obtained data at corresponding weightings. Bias-free weighted image data at desired weighting levels, maps of the decay function fit parameters, or maps of a combination of such decay function parameters can be used for rapid and highly sensitive tissue characterization.

Abstract: Inventive technology is directed to diffusion weighted magnetic resonance measurements. In an embodiment, a method for performing a diffusion weighted magnetic resonance measurement on a sample includes operating a magnetic resonance scanner to apply a diffusion encoding sequence to the sample. The method also includes operating the magnetic resonance scanner to acquire from the sample one or more echo signals. The diffusion encoding sequence includes a diffusion encoding time-dependent magnetic field gradient g(t) with non-zero components gl(t) along at least two orthogonal directions y and z, and a b-tensor having at least two non-zero eigenvalues, the magnetic field gradient comprising a first and subsequent second encoding block.

Abstract: A validation technique for quality assurance of quantitative MRI methods by comparing the measured magnetic properties of a phantom having a range of T1 and T2 values measured by an accelerated, clinically-practicable protocol with predicted values for that magnetic property calculated from a set of reference T1 and T2 values measured on the phantom. The prediction is based on a relationship between the values from the accelerated protocol and values from the reference measurements obtained by repeatedly scanning one or more phantoms.

Abstract: Some radio-frequency coils comprise three or more electrical conductors that form a radio-frequency coil element. Each of the three or more electrical conductors extends along at least a respective part of a length of the radio-frequency coil element, and, along the length of the radio-frequency coil element, the three or more electrical conductors are separated from each other by respective distances and by one or more dielectric materials.

Abstract: A camera module includes a lens module including at least one lens, a housing configured to accommodate the lens module, a first reflection module disposed in front of the lens module, a second reflection module disposed behind the lens module, an image sensor module configured to receive light reflected from the second reflection module, and a light-blocking structure, disposed in the housing between the second reflection module and the image sensor module, including an aperture configured to pass light and an infrared cutoff filter disposed to cover the aperture.

Abstract: Systems and methods are provided herein for determining whether to extend scanning performed by a magnetic resonance imaging (MRI) system. According to some embodiments, there is provided a method for imaging a subject using an MRI system, comprising: obtaining data for generating at least one magnetic resonance image of the subject by operating the MRI system in accordance with a first pulse sequence; prior to completing the obtaining the data in accordance with the first pulse sequence, determining to collect additional data to augment and/or replace at least some of the obtained data; determining a second pulse sequence to use for obtaining the additional data; and after completing the obtaining the data in accordance with the first pulse sequence, obtaining the additional data by operating the MRI system in accordance with the second pulse sequence.

Abstract: A method of producing a permanent magnet shim configured to improve a profile of a B0 magnetic field produced by a B0 magnet is provided. The method comprises determining deviation of the B0 magnetic field from a desired B0 magnetic field, determining a magnetic pattern that, when applied to magnetic material, produces a corrective magnetic field that corrects for at least some of the determined deviation, and applying the magnetic pattern to the magnetic material to produce the permanent magnet shim. According to some aspects, a permanent magnet shim for improving a profile of a B0 magnetic field produced by a B0 magnet is provided. The permanent magnet shim comprises magnetic material having a predetermined magnetic pattern applied thereto that produces a corrective magnetic field to improve the profile of the B0 magnetic field.

Abstract: A method and system for performing three-dimensional, 3D, magnetic resonance elastography, MRE, using a multi-slice gradient echo, GRE, imaging sequence. Four scans typically required to be performed during MRE, and during four breath-holds, are combined into a single measurement that can be performed during a single breath-hold.

Abstract: A positioning method for a magnetic resonance imaging system comprises: acquiring a scattering parameter curve of a body coil during a process in which an examination table carrying a subject under examination enters a scanning bore of the magnetic resonance imaging system; acquiring the position of a part to be examined of the subject under examination on the basis of the scattering parameter curve; and moving the examination table on the basis of the position of the part to be examined such that the part to be examined is located at the center of the scanning bore.

Abstract: A camera built into a cylindrical housing couples to a stand with a stand member that inserts into an opening having a magnet attracted to ferromagnetic material integrated in the stand member. The stand member may couple to a bracket that holds the camera at a display or to a tripod that places the camera between the display and an end user participating in a video conference. A lens cover couples over a front face of the camera with magnetic attraction and is stored at a rear face of the camera with magnetic attraction. In various embodiments, sensors detect lens cap and/or stand member position to control camera power and/or camera visual image capture operations.

Abstract: In a method for control, input magnetic field map data is received. In this case, the input magnetic field map data for at least one magnetic field type in each case describes a magnetic field map for a state that an examination object is in at an initial location in the MR apparatus. In this case, the estimated magnetic field map data for at least one magnetic field type in each case describes at least one magnetic field map for in each case a state that the examination object is in at an alternative location that is different compared to the initial location. Control data is determined by the system control unit, using the estimated magnetic field map data or using the input magnetic field map data and the estimated magnetic field map data. The control data is suitable for controlling the MR apparatus.