Abstract: Described herein are various embodiments of techniques for controlling creation of a magnetic resonance (MR) image from a magnetic resonance imaging (MRI) scan of a subject using an MRI scanner, through real-time, dynamic control of the MRI scanner during the MRI scan and/or of processing during the MRI scan of acquired MR signals as part of generating MR data for creation of the MR image. More particularly, some embodiments described herein relate to identifying changes that occur in a magnetic field within an MRI scanner during a course of an MRI scan. In response to changes in the magnetic field, an MRI scanner may be adjusted to change a way in which additional MR data is captured and/or a processing of captured MR signals (that are to be used in generating an MR image) may be adjusted.

Abstract: Described herein are techniques to estimate motion of a subject during a magnetic resonance image (MRI) scan. The estimation may be based on one or more slices acquired during the MRI scan, permitting automated estimation of motion of the subject during the MRI scan. Some such techniques may be performed during the MRI scan, before the completion of the MRI scan, or after the MRI scan before or after magnetic resonance data (MR data) resulting from the MRI scan has been processed to generate an image from the MR data.

Abstract: Described herein are techniques to determine whether an image that would result from a magnetic resonance imaging (MRI) scan would satisfy quality metrics, such as by being of sufficient quality to permit a diagnostic read of the image. The determination may be based on signals emitted and captured by an MRI system during the MRI scan, permitting an automated determination of quality of an image that would result from an MRI scan. Some such techniques may be performed during the MRI scan, before the completion of the MRI scan, or after the MRI scan before or after magnetic resonance data (MR data) resulting from the MRI scan has been processed to generate an image from the MR data.

Abstract: A method for imaging a tissue region of a patient includes receiving a plurality of magnetic resonance (MR) signals of the tissue region, each MR signal being measured by a corresponding one of a plurality of coils, each coil having a different spatial sensitivity profile; and generating an image of the tissue region based on the plurality of MR signals and the spatial sensitivity profile of each coil, including applying one or more constraints to the image generation, wherein at least one of the constraints couples a first image value to one or more neighboring image values.

Abstract: System and method for processing magnetic resonance imaging (MRI) data of an object to perform motion correction. The method comprises estimating, for each slice of the MRI data, parameters for a state space model using a filter that predicts the location of the object for temporally adjacent slices, wherein the state space model represents motion dynamics of the object throughout acquisition of a three-dimensional volume, registering the slices to a reference image based, at least in part, on the estimated parameters, reconstructing an image based, at least in part, on the registered two-dimensional slices, and outputting the reconstructed image.

Abstract: System and method for processing magnetic resonance imaging (MRI) data of an object to perform motion correction. The method comprises estimating, for each slice of the MRI data, parameters for a state space model using a filter that predicts the location of the object for temporally adjacent slices, wherein the state space model represents motion dynamics of the object throughout acquisition of a three-dimensional volume, registering the slices to a reference image based, at least in part, on the estimated parameters, reconstructing an image based, at least in part, on the registered two-dimensional slices, and outputting the reconstructed image.