Abstract: A system and method are provided for acquiring diffusion weighted imaging (DWI) images of a subject using a magnetic resonance imaging system includes performing a chemical-shift encoded (CSE) prescan of a subject to generate a fat image, a water image, and a B0 field map. The method also includes, for each slice or volume of a desired (DWI) acquisition from the subject, determining shim parameters that improve water signal and suppress fat signal. The method further includes performing the DWI acquisition to acquire DWI data form the subject using the shim parameters and reconstructing DWI images of the subject with suppressed artifacts induced by fat of the subject.

Abstract: A system and method are provided for acquiring diffusion weighted imaging (DWI) images of a subject using a magnetic resonance imaging system includes performing a chemical-shift encoded (CSE) prescan of a subject to generate a fat image, a water image, and a B0 field map. The method also includes, for each slice or volume of a desired (DWI) acquisition from the subject, determining shim parameters that improve water signal and suppress fat signal. The method further includes performing the DWI acquisition to acquire DWI data form the subject using the shim parameters and reconstructing DWI images of the subject with suppressed artifacts induced by fat of the subject.

Abstract: Embodiments of the disclosure provide a magnetic resonance (MR) phantom including a housing, a base medium disposed within the housing, and one or more compartment extending through the base medium, the one or more compartment comprising a crosslinked acrylamide-based polymer. The MR phantoms may be used as calibration phantoms for magnetic resonance elastography sequences and diffusion weighted images.

Abstract: In some embodiments, the present disclosure discloses a magnetic resonance (MR) phantom. The MR phantom includes a housing, a base medium disposed within the housing, and one or more compartment extending through the base medium, the one or more compartment comprising a crosslinked acrylamide-based polymer. The MR phantoms may be used as calibration phantoms for magnetic resonance elastography sequences and diffusion weighted images.

Abstract: An apparatus and method for reconstructing multi-spectral 3D MR images includes a magnetic resonance (MRI) apparatus that includes an MRI system having a plurality of gradient coils positioned about a bore of a magnet, and an RF transceiver system and an RF switch controlled by a pulse module to transmit RF signals to an RF coil assembly to acquire MR images. The MRI apparatus also includes a computer programmed to acquire a plurality of three-dimensional (3D) MR data sets, wherein each 3D MR data set is acquired using a central transmit and receive frequency set to an offset frequency value that is distinct for each 3D MR data set. The computer is also programmed to simultaneously generate a composite image and a magnetic field map based on the plurality of 3D MR data sets.

Abstract: An apparatus and method for reconstructing multi-spectral 3D MR images includes a magnetic resonance (MRI) apparatus that includes an MRI system having a plurality of gradient coils positioned about a bore of a magnet, and an RF transceiver system and an RF switch controlled by a pulse module to transmit RF signals to an RF coil assembly to acquire MR images. The MRI apparatus also includes a computer programmed to acquire a plurality of three-dimensional (3D) MR data sets, wherein each 3D MR data set is acquired using a central transmit and receive frequency set to an offset frequency value that is distinct for each 3D MR data set. The computer is also programmed to simultaneously generate a composite image and a magnetic field map based on the plurality of 3D MR data sets.