A method is provided for creating magnetic resonance images of a predetermined three-dimensional volume segment of a living object undergoing examination, using a magnetic resonance device. The method includes acquiring magnetic resonance data in the volume segment by radial acquisition of a k-space for a predetermined duration of capture that includes at least one full respiratory period of the object undergoing examination; analyzing the magnetic resonance data in order to determine therefrom at least one respiratory period; forming at least one data group that includes only the magnetic resonance data that belongs to at least one respiratory state of the at least one respiratory period; and creating the magnetic resonance images from only the magnetic resonance data of the at least one data group. Here, it is advantageous that magnetic resonance images of higher temporal resolution and/or better image quality, in particular with smaller image artifacts, may be provided.

A combined dataset can be formed from partial datasets acquired at different positions of a patient support with a magnetic resonance device. The partial datasets can be of an anatomical region of a patient delimited perpendicularly to a longitudinal direction within an acquisition region. In a method for correcting the combined dataset formed from the partial datasets, for slices of a slice stack in the longitudinal direction of the combined dataset, information describing geometry of the anatomical region and/or an anatomical feature of the anatomical region is determined. For at least one slice group including adjacent slices, the geometry information is compared to detect one or more discontinuities. For at least one discontinuity of the one or more discontinuities satisfying a correction criterion, the combined dataset is corrected as a function of the geometry information to eliminate or reduce the at least one discontinuity.

Various methods and systems are provided for selecting coil elements of a plurality of coil elements of a radio frequency (RF) coil array for use in a magnetic resonance imaging (MRI) system. In one example, a method includes grouping the plurality of coil elements into receive elements groups (REGs) according to REGs information, generating channel sensitivity maps for the plurality of coil elements, generating REG sensitivity maps based on the REGs information and the channel sensitivity maps, labeling each REG as either selectable or not selectable based on the REG sensitivity maps, selecting one or more REGs from the selectable REGs based on the REG sensitivity maps and a region of interest (ROI), and scanning the ROI with the coil elements in the one or more selected REGs being activated and the coil elements not in any selected the other REGs being deactivated.

This disclosure relates to a magnetic resonance imaging device. The magnetic resonance imaging device includes an carrying unit; an imaging unit, a controlling computer, and a signal processing computer. The signal processing computer includes a controlling module, a data processing module, an image reconstructing module, an image storing module, and an image comparing module. The image reconstructing module forms cross-sectional scanned images of an user's brain memory showing microstructure. The image comparing module is configured to analyze and compare the cross-sectional scanned images of the user's brain memory showing microstructure captured at different times so that the controlling computer shows different suggestions corresponding to different judgement results of the image comparing module. The system may comprise a dementia monitoring system that provides users with advisory dementia warnings so users may be advised to seek further medical advice.

In one embodiment, an MRI apparatus (20) includes a reference scan setting unit (100), a reference scan execution unit, and an image generation unit. The reference scan setting unit calculates a signal acquisition region of a reference scan in which MR signals used for generation of a sensitivity distribution map of each coil element are acquired, depending on an imaging region of a main scan of parallel imaging. The reference scan execution unit executes the reference scan on the calculated signal acquisition region. The image generation unit generates image data according to MR signals acquired by the main scan and the sensitivity distribution map generated based on MR signals acquired by the reference scan.

An MRI method includes: defining image regions on an object; setting imaging conditions for the defined image regions; and acquiring MR images for the image regions according to the set imaging conditions. The imaging conditions may be set by displaying information about the defined image regions and setting the imaging conditions for the image regions based on the displayed information.

A medical apparatus (300, 400, 500) includes a magnetic resonance imaging system (306); magnetic compensation coils (334, 335) for compensating for magnetic inhomogeneities within the imaging zone; a gantry (308) operable for rotating about the imaging zone; a position sensor (312) for measuring the angular position and the angular velocity of the gantry; at least one magnetic field distorting component (310, 510, 512) in the gantry; and a memory (362) storing machine executable instructions (380, 382, 410, 530, 532) and field correction data (372). The instructions cause a processor to: receive (100, 200) the position and angular velocity data from the position sensor; determine (102, 202) coil control commands (374) for controlling the magnetic compensation coils using the field correction data, the position data and the angular velocity data; control (104, 204) the magnetic compensation coils to compensate for magnetic inhomogeneities within the imaging zone using the coil control commands; and acquire (106, 212) the magnetic resonance data.

A plug connector is disclosed for use in a magnetic resonance device. The plug connector includes a first connecting part and a second connecting part, which are configured to be detachably connected to one another. The first connecting part includes a first contact surface and the second connecting part includes a first contact plate, a second contact plate, and a housing. The second contact plate is arranged to be moved relative to the housing. In a connected state, the first contact plate is arranged between the first contact surface and the second contact plate. The electrical plug connector includes a mechanical lifting apparatus, which is configured, when the first connecting part is being connected to the second connecting part, to move the second contact plate, e.g., relative to the housing, in the direction of the first contact plate.

A magnetic resonance imaging (MRI) system that can be operated while a subject performs, experiences, or otherwise undergoes naturalistic motion. This movable MRI (mMRI) system includes a magnet whose position and orientation can be changed while the subject is moving, such that the magnet and subject maintain a substantially fixed spatial relationship relative to each other.

A method computer and magnetic resonance (MR) apparatus for controlling a table position of an examination table of the MR apparatus during an MR measurement. An SAR load is determined for an examination object with a calculated pulse sequence, at least for a first table position. Then the table position is adjusted while taking into consideration the SAR load at the first table position. The adjustment of the table position ensures that the SAR load of the examination object is reduced.