Abstract: Data distribution and analysis systems, and associated methods are described herein. In one aspect, a method for distributing data can include: receiving, by a computing service and from a medical data server, medical image data stored by the PACS; inputting the medical image data into a machine learning model hosted by the computing service, wherein the computing service allows users to upload machine learning models and configure corresponding machine learning models to interface with the medical data server; generating, by the machine learning model, additional biometric data corresponding to the medical image data; and sending the additional biometric data to the medical data server, wherein the additional biometric data and the medical image data is incorporated into an electronic health record (EHR).

Abstract: Methods of, and systems for, magnetic resonance imaging of diagnostic mapping of tissues, where sodium mapping is performed individually, as well as in combination with other images of tissue, such as T1?, T2, and/or T1-weighted images. In one method embodiment, a sodium image of the tissue is acquired during the same scanning session. Maps are constructed of each of the first and sodium images individually, and in combination, and further facilitate viewing in combination with each other as a single, blended image of the tissue. Maps of the images may be displayed individually or in combination with each other.

Abstract: A spin locked balanced steady-state free precession (slSSFP) pulse sequence combines a balanced gradient echo acquisition with an off-resonance spin lock pulse for fast MRI. The transient and steady-state magnetization trajectory is solved numerically using the Bloch equations and is shown to be similar to balanced steady-state free precession (bSSFP) for a range of T2/T1 and flip angles, although the slSSFP steady-state could be maintained with considerably lower RF power. In both simulations and brain scans performed at 7T, slSSFP is shown to exhibit similar contrast and SNR efficiency to bSSFP, but with significantly lower power.

Abstract: Provided are methods and systems for rapid MRI imaging-scanning that provides 2D or 3D coverage, high precision, and high-temporal efficiency, without exceeding SAR limits. In one embodiment, a pulse sequence process is performed that includes a T1? preparation period, followed by a very rapid image acquisition process, which acquires multiple lines of k-space data. The combination of T1? preparation and acquisition of multiple lines of k-space, allows scan times to be shortened by as much as 3- or 4-fold or more, over conventional MRI scanning methods.

Abstract: A spin locked balanced steady-state free precession (slSSFP) pulse sequence combines a balanced gradient echo acquisition with an off-resonance spin lock pulse for fast MRI. The transient and steady-state magnetization trajectory is solved numerically using the Bloch equations and is shown to be similar to balanced steady-state free precession (bSSFP) for a range of T2/T1 and flip angles, although the slSSFP steady-state could be maintained with considerably lower RF power. In both simulations and brain scans performed at 7 T, slSSFP is shown to exhibit similar contrast and SNR efficiency to bSSFP, but with significantly lower power.

Abstract: Methods of, and systems for, simultaneously compensating for external-magnetic-field inhomogeneity as well as radiofrequency magnetic-field inhomogeneity in an MRI system. In one method embodiment, a pulse sequence is applied when the transmitter-reference frequency is delivered on resonance. The pulse sequence includes radiofrequency pulses which may be applied at arbitrary-excitation-flip angles that are not necessarily 90° degrees. The pulse sequence also includes spin-locking pulses applied in concert with a refocusing-composite pulse. In another method embodiment, a pulse sequence is applied when the transmitter-reference frequency is delivered off resonance. This off-resonance-pulse sequence includes radiofrequency pulses which may be applied at arbitrary-excitation-flip angles that are not necessarily 90° degrees. Sandwiched between the excitation-flip angles are at least two off-resonance-spin-lock pulses applied at an inverse phase and frequency from each other.

Abstract: Provided are methods and systems for rapid MRI imaging-scanning that provides 2D or 3D coverage, high precision, and high-temporal efficiency, without exceeding SAR limits. In one embodiment, a pulse sequence process is performed that includes a T1? preparation period, followed by a very rapid image acquisition process, which acquires multiple lines of k-space data. The combination of T1? preparation and acquisition of multiple lines of k-space, allows scan times to be shortened by as much as 3- or 4-fold or more, over conventional MRI scanning methods.

Abstract: Methods of, and systems for, simultaneously compensating for external-magnetic-field inhomogeneity as well as radiofrequency magnetic-field inhomogeneity in an MRI system. In one method embodiment, a pulse sequence is applied when the transmitter-reference frequency is delivered on resonance. The pulse sequence includes radiofrequency pulses which may be applied at arbitrary-excitation-flip angles that are not necessarily 90° degrees. The pulse sequence also includes spin-locking pulses applied in concert with a refocusing-composite pulse. In another method embodiment, a pulse sequence is applied when the transmitter-reference frequency is delivered off resonance. This off-resonance-pulse sequence includes radiofrequency pulses which may be applied at arbitrary-excitation-flip angles that are not necessarily 90° degrees. Sandwiched between the excitation-flip angles are at least two off-resonance-spin-lock pulses applied at an inverse phase and frequency from each other.

Abstract: Provided is a T1?-weighted pulse sequence with reduced specific absorption rate for magnetic resonance imaging (MRI). Also provided is a method of reducing the specific absorption rate in T1?-weighted MRI.

Abstract: Provided is a T1?-weighted pulse sequence with reduced specific absorption rate for magnetic resonance imaging (MRI). Also provided is a method of reducing the specific absorption rate in T1?-weighted MRI.

Abstract: Provided are pulse imaging sequences and methods for 2D mulfi-slice T1p-weighted and 3D T1p-weighted magnetic resonance imaging (MRI). Further provided is a self-compensating spin-locking sequence for correcting and reducing artifacts in T1p-weighted imaging. Also provided is a sequence combining 3D T1p-weighted MRI with a self-compensating spin-locking pulse for facilitating T1p-weighted imaging with surface coils.

Abstract: Provided are pulse imaging sequences and methods for 2D multi-slice T1&rgr;-weighted and 3D T1&rgr;-weighted magnetic resonance imaging (MRI). Further provided is a self-compensating spin-locking sequence for correcting and reducing artifacts in T1&rgr;-weighted imaging. Also provided is a sequence combining 3D T1&rgr;-weighted MRI with a self-compensating spin-locking pulse for facilitating T1&rgr;-weighted imaging with surface coils.

Abstract: Provided are pulse imaging sequences and methods for 2D multi-slice T1&rgr;-weighted and 3D T1&rgr;-weighted magnetic resonance imaging (MRI). Further provided is a self-compensating spin-locking sequence for correcting and reducing artifacts in T1&rgr;-weighted imaging. Also provided is a sequence combining 3D T1&rgr;-weighted MRI with a self-compensating spin-locking pulse for facilitating T1&rgr;-weighted imaging with surface coils.