A magnet suitable for use in a Magnetic Resonance Imaging (MRI) system. The magnet includes a magnet body having a bore extending therethrough along an axis of the body and a primary coil structure having at least four primary coils positioned along the axis. A first end coil is adjacent a first end of the bore of the magnet and a second end coil is adjacent a second end of the magnet. The first end coil and the second end coil are spaced apart by no more than 1000 mm and an imaging region produced by the primary coils is of a disk-type.

A system for scanning an object is provided. The system may include: a supporting table configured to support the object; a first signal conversion unit configured to receive one or more first signals associated with the object and convert the first signals into one or more second signals; and a second signal receiver board configured to receive the one or more second signals. The first signal conversion unit may include a plurality of first signal receiving channels. Each first signal receiving channel may be configured to receive a first signal associated with a portion of the object. The supporting table and the second signal receiver board may be configured to move relative to each other to cause the second signal receiver board to receive at least one second signal corresponding to at least one first signal received by at least one target channel of the first signal receiving channels.

In a method and magnetic resonance (MR) apparatus for acquisition of MR data from a patient in a breath-hold examination an instruction is provided to the patient to hold his/her breath, and the acquisition of MR measurement data is started. A breathing curve is recorded at least after the output of the instruction to the patient. A next-breath time is determined based on the recorded breathing curve. At least one final MR measurement data set is created based on the acquired MR measurement data, depending on the detected next-breath time. Image data are reconstructed from the at least one final MR measurement data set.

The present invention includes a method and apparatus for improved magnetic resonance imaging with simultaneous fat and fluid suppression of a subject comprising: acquiring four images, in-phase (IP) and out-of-phase (OP) at a short and a long echo time (TE) using a single-shot turbo spin echo from one or more magnetic resonance imager excitations: processing at least a pair of IP and OP images at a short and a long TE using single-shot turbo spin echo using a Dixon reconstruction; processing the pair of IP and OP images; subtracting the long TE water-only image from the shared-field-map Dixon reconstruction from the short TE water-only image to provide a fluid attenuation; processing water-only and fat-only images at the short and long TE to generate quantitative fat-fraction map; and reconstructing one or more 3D magnetic resonance images.

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.

A method is for performing an angiographic measurement and creating an angiogram of a body region of a patient in a magnetic-resonance system and a magnetic-resonance system for operating such a method. In an embodiment, the method includes acquisition of a body region; division of the angiographic measurement into partial angiographic measurements; displaying the measurement start times, the measurement duration and the measurement end times of the partial angiographic measurements; changing the measuring time points; definition of sequence parameters of the partial angiographic measurements based on the changed measurement start times and/or measurement end times such that the partial angiographic measurement is performable between the associated measurement start time and measurement end time; provision of the sequence parameters of the control unit of the magnetic-resonance system; performance of the partial angiographic measurements; and creation of the angiogram using the partial angiographic measurements performed.

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.

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.

Various methods and systems are provided for scanning an image subject along a scan axis. The method includes stitching sectional datasets acquired from different anatomical sections of the image subject based on locations of a landmark in the sectional datasets.

Various methods and systems are provided for scanning an image subject along a scan axis. The method includes stitching sectional datasets acquired from different anatomical sections of the image subject based on locations of a landmark in the sectional datasets.