Abstract: RF coil array assemblies include an RF coil array with a plurality of coil elements. The coil elements each have an RF conductor that defines an RF path. The coil elements operate in an RF mode for at least one of transmitting RF excitation signals or receiving MRI image signals on the RF conductors. The RF coil array assemblies also include at least one wireless module connected to the RF coil array, the at least one wireless module including a wireless transceiver operative at a wireless communication frequency band and attached to at least some of the coil elements to provide input and output signals to the at least one wireless module. At least some of the coil elements can concurrently transmit or receive wireless communication data and the RF excitation signals or the received MRI image signals.

Abstract: RF coil array assemblies include an RF coil array with a plurality of coil elements. The coil elements each have an RF conductor that defines an RF path. The coil elements operate in an RF mode for at least one of transmitting RF excitation signals or receiving MRI image signals on the RF conductors. The RF coil array assemblies also include at least one wireless module connected to the RF coil array, the at least one wireless module including a wireless transceiver operative at a wireless communication frequency band and attached to at least some of the coil elements to provide input and output signals to the at least one wireless module. At least some of the coil elements can concurrently transmit or receive wireless communication data and the RF excitation signals or the received MRI image signals.

Abstract: Systems, methods and devices are configured for integrated parallel reception, excitation, and shimming (iPRES) with RF coil elements with split DC loops. Parallel transmit/receive (which can include B1 shimming and/or parallel imaging capabilities) and B0 shimming employ the same set of localized coils or transverse electromagnetic (TEM) coil elements, with each coil or TEM element working in both an RF mode (for transmit/receive and B1 shimming) and a direct current (DC) mode (for B0 shimming) simultaneously. Both an RF and a DC current (in split DC loops) can flow in the same coil element simultaneously but independently with no electromagnetic interference between the two modes.

Abstract: Systems, methods and devices are configured for integrated parallel reception, excitation, and shimming (iPRES). Parallel transmit/receive (which can include B1 shimming and/or parallel imaging capabilities) and B0 shimming employ the same set of localized coils or transverse electromagnetic (TEM) coil elements, with each coil or TEM element working in both an RF mode (for transmit/receive and B1 shimming) and a direct current (DC) mode (for B0 shimming) simultaneously. Both an RF and a DC current can flow in the same coil simultaneously but independently with no electromagnetic interference between the two modes. This invention is not only applicable when the same coil array is used for parallel transmit, receive and shim, but also when two separate coil arrays are used. In that case, the B0 shimming capability can be integrated into one of the coil arrays (i.e. a transmit array with B1 shimming capability or a receive array), thereby increasing the flexibility and practical utility of the iPRES technology.

Abstract: In vivo methods of non-invasively imaging neuro-electro-magnetic oscillations (NEMO) are carried out by electronically transmitting a pulse sequence to a subject. The pulse sequence has a first excitation pulse, typically applied along an x-axis, followed by a spin-lock pulse applied along a different axis, typically a y-axis, and having a defined frequency, followed by a second RF excitation pulse. Then MR image signal of neuroelectric activity associated with evoked and/or spontaneous neuroelectric oscillations is obtained after the second RF excitation pulse and a neuroactivity (i.e., brain activation) map based on the obtained MR image signal is generated, the neuroactivity map having high temporal and spatial accuracy of the neuroelectric activity.

Abstract: Methods, systems, computer programs, circuits and workstations are configured to generate MRI images using gradient blips for signal acquisition and reconstruction using dynamic field mapping, TE corrections and/or multischeme partial Fourier images.

Abstract: Systems, methods and devices are configured for integrated parallel reception, excitation, and shimming (iPRES). Parallel transmit/receive (which can include B1 shimming and/or parallel imaging capabilities) and B0 shimming employ the same set of localized coils or transverse electromagnetic (TEM) coil elements, with each coil or TEM element working in both an RF mode (for transmit/receive and B1 shimming) and a direct current (DC) mode (for B0 shimming) simultaneously. Both an RF and a DC current can flow in the same coil simultaneously but independently with no electromagnetic interference between the two modes. This invention is not only applicable when the same coil array is used for parallel transmit, receive and shim, but also when two separate coil arrays are used. In that case, the B0 shimming capability can be integrated into one of the coil arrays (i.e. a transmit array with B1 shimming capability or a receive array), thereby increasing the flexibility and practical utility of the iPRES technology.

Abstract: Systems, methods and devices are configured for integrated parallel reception, excitation, and shimming (iPRES) with RF coil elements with split DC loops. Parallel transmit/receive (which can include B1 shimming and/or parallel imaging capabilities) and B0 shimming employ the same set of localized coils or transverse electromagnetic (TEM) coil elements, with each coil or TEM element working in both an RF mode (for transmit/receive and B1 shimming) and a direct current (DC) mode (for B0 shimming) simultaneously. Both an RF and a DC current (in split DC loops) can flow in the same coil element simultaneously but independently with no electromagnetic interference between the two modes.

Abstract: Systems, methods and devices are configured for integrated parallel reception, excitation, and shimming (iPRES) with RF coil elements with split DC loops. Parallel transmit/receive (which can include B1 shimming and/or parallel imaging capabilities) and B0 shimming employ the same set of localized coils or transverse electromagnetic (TEM) coil elements, with each coil or TEM element working in both an RF mode (for transmit/receive and B1 shimming) and a direct current (DC) mode (for B0 shimming) simultaneously. Both an RF and a DC current (in split DC loops) can flow in the same coil element simultaneously but independently with no electromagnetic interference between the two modes.

Abstract: Systems, methods and devices are configured for integrated parallel reception, excitation, and shimming (iPRES). Parallel transmit/receive (which can include B?1#191 shimming and/or parallel imaging capabilities) and B1 shimming employ the same set of localized coils or transverse electromagnetic (TEM) coil elements, with each coil or TEM element working in both an RF mode (for transmit/receive and B1 shimming) and a direct current (DC) mode (for B0 shimming) simultaneously. Both an RF and a DC current can flow in the same coil simultaneously but independently with no electromagnetic interference between the two modes. This invention is not only applicable when the same coil array is used for parallel transmit, receive and shim, but also when two separate coil arrays are used. In that case, the B0 shimming capability can be integrated into one of the coil arrays (i.e.

Abstract: MRI systems with a new concept and hardware modality configured for parallel transmit, receive, and shim to address B0 and B1 inhomogeneity, both of which increase with field strength. This invention benefits from a number of advantages over existing technologies: it can save valuable space within the MRI magnet bore, largely reduce the manufacturing cost of MRI scanners, and avoid the electromagnetic interference issue associated with existing technologies.

Abstract: In vivo methods of non-invasively imaging neuro-electro-magnetic oscillations (NEMO) are carried out by electronically transmitting a pulse sequence to a subject. The pulse sequence has a first excitation pulse, typically applied along an x-axis, followed by a spin-lock pulse applied along a different axis, typically a y-axis, and having a defined frequency, followed by a second RF excitation pulse. Then MR image signal of neuroelectric activity associated with evoked and/or spontaneous neuroelectric oscillations is obtained after the second RF excitation pulse and a neuroactivity (i.e., brain activation) map based on the obtained MR image signal is generated, the neuroactivity map having high temporal and spatial accuracy of the neuroelectric activity.

Abstract: Systems, methods and devices are configured for integrated parallel reception, excitation, and shimming (iPRES) with RF coil elements with split DC loops. Parallel transmit/receive (which can include B1 shimming and/or parallel imaging capabilities) and B0 shimming employ the same set of localized coils or transverse electromagnetic (TEM) coil elements, with each coil or TEM element working in both an RF mode (for transmit/receive and B1 shimming) and a direct current (DC) mode (for B0 shimming) simultaneously. Both an RF and a DC current (in split DC loops) can flow in the same coil element simultaneously but independently with no electromagnetic interference between the two modes.

Abstract: Systems, methods and devices are configured for integrated parallel reception, excitation, and shimming (iPRES). Parallel transmit/receive (which can include B?1#191 shimming and/or parallel imaging capabilities) and B1 shimming employ the same set of localized coils or transverse electromagnetic (TEM) coil elements, with each coil or TEM element working in both an RF mode (for transmit/receive and B1 shimming) and a direct current (DC) mode (for B0 shimming) simultaneously. Both an RF and a DC current can flow in the same coil simultaneously but independently with no electromagnetic interference between the two modes. This invention is not only applicable when the same coil array is used for parallel transmit, receive and shim, but also when two separate coil arrays are used. In that case, the B0 shimming capability can be integrated into one of the coil arrays (i.e.

Abstract: Methods, systems, computer programs, circuits and workstations are configured to carry out image processing to generate MRI images with reduced aliasing artifacts (e.g., Nyquist and/or motion-induced image artifacts) by (a) electronically reconstructing a series of images using patient image data obtained from a patient MRI image data set by iteratively cycling through different estimated values of phase gradients in at least two dimensions; and (b) electronically selecting an image from the reconstructed images as having a lowest artifact level.

Abstract: MRI systems with a new concept and hardware modality configured for parallel transmit, receive, and shim to address B0 and B1 inhomogeneity, both of which increase with field strength. This invention benefits from a number of advantages over existing technologies: it can save valuable space within the MRI magnet bore, largely reduce the manufacturing cost of MRI scanners, and avoid the electromagnetic interference issue associated with existing technologies.

Abstract: Methods, systems, computer programs, circuits and workstations are configured to generate MRI images using gradient blips for signal acquisition and reconstruction using dynamic field mapping, TE corrections and/or multischeme partial Fourier images.

Abstract: Methods, systems, computer programs, circuits and workstations are configured to carry out image processing to generate MRI images with reduced aliasing artifacts (e.g., Nyquist and/or motion-induced image artifacts) by (a) electronically reconstructing a series of images using patient image data obtained from a patient MRI image data set by iteratively cycling through different estimated values of phase gradients in at least two dimensions; and (b) electronically selecting an image from the reconstructed images as having a lowest artifact level.

Abstract: An method for producing magnetic resonance imaging data is disclosed. An example embodiment of the method includes acquiring a series of M images at a plurality of echo times using a multi-echo pulse sequence. A compensation gradient is added as a blipped gradient in the slice direction before the first image acquisition and between each subsequent image acquisitions to compensate for static magnetic field inhomogeneities. The method also includes repeating the step of acquiring the series of M images N times. The compensation gradient is set to a predetermined value for each acquisition. The method further includes combining the N acquired images for each of the M echo times to obtain M corrected images, computing a map of T2* values from the M corrected images, and storing data representing the N acquired images and the M corrected images. Systems and computer readable media for implementing the method are also disclosed.

Abstract: An method for producing magnetic resonance imaging data is disclosed. An example embodiment of the method includes acquiring a series of M images at a plurality of echo times using a multi-echo pulse sequence. A compensation gradient is added as a blipped gradient in the slice direction before the first image acquisition and between each subsequent image acquisitions to compensate for static magnetic field inhomogeneities. The method also includes repeating the step of acquiring the series of M images N times. The compensation gradient is set to a predetermined value for each acquisition. The method further includes combining the N acquired images for each of the M echo times to obtain M corrected images, computing a map of T2* values from the M corrected images, and storing data representing the N acquired images and the M corrected images. Systems and computer readable media for implementing the method are also disclosed.