In a magnetic resonance measurement sequence, an inversion pulse is applied that acts on a longitudinal magnetization of a first spin species and a second spin species, for example on a water portion and a fat portion. An excitation pulse is applied after a predetermined time period. At least one manipulation pulse is subsequently applied, respectively with associated gradient pulse.

Exemplary quantitative susceptibility mapping methods, systems and computer-accessible medium can be provided to generate images of tissue magnetism property from complex magnetic resonance imaging data using the Bayesian inference approach, which minimizes a cost function consisting of a data fidelity term and two regularization terms. The data fidelity term is constructed directly from the complex magnetic resonance imaging data. The first prior is constructed from matching structures or information content in known morphology. The second prior is constructed from a region having an approximately homogenous and known susceptibility value and a characteristic feature on anatomic images. The quantitative susceptibility map can be determined by minimizing the cost function. Thus, according to the exemplary embodiment, system, method and computer-accessible medium can he provided for determining magnetic susceptibility information associated with at least one structure.

Methods and devices for magnetic resonance imaging are provided. In one aspect, a method of magnetic resonance imaging includes: for each scanning step in a scanning sequence for a subject, determining a longitudinal magnetization intensity of a characteristic tissue of the subject according to a current running condition of the scanning sequence, obtaining an inversion time corresponding to a characteristic tissue suppressing pulse to be generated according to the determined longitudinal magnetization intensity, generating the characteristic tissue suppression pulse, generating an imaging pulse sequence when the inversion time elapses after generating the characteristic tissue suppression pulse, and receiving an echo signal from the subject, the echo signal corresponding to the generated imaging pulse sequence. The method can also include reconstructing an image of the subject according to the received echo signals when the scanning sequence finishes the scanning steps.

Improved magnetic resonance imaging systems, methods and software are described including a low field strength main magnet, a gradient coil assembly, an RF coil system, and a control system configured for the acquisition and processing of magnetic resonance imaging data from a patient while utilizing a sparse sampling imaging technique.

A method of controlling a magnetic resonance imaging (MRI) apparatus including performing, by the MRI apparatus, blipped-controlled aliasing parallel imaging (blipped-CAIPI) obtaining k-space data on a subject determining a phase error of a chemical shift component, wherein the phase error of the chemical shift component is proportional to a geometric error based on a resonant frequency difference between a main component and the chemical shift component in the subject comparing the k-space data with data in which the phase error of the chemical shift component is reflected, wherein the data in which the phase error of the chemical shift component is reflected is associated with data on the main component and data on the chemical shift component and determining final data for image restoration based on a result of the comparison.

In a method and magnetic resonance (MR) apparatus for acquiring MR data from a volume of an object in which first and second excitable spin types are present that differ in their Larmor frequencies by a chemical shift, an MR sequence with at least one radio-frequency pulse sequence selectively excites the first spin type or selectively suppresses MR signals of the second spin type. A B0 map describing the basic field distribution in a region of interest of the volume is established. First and second items of distribution information, which respectively describe the spectral distribution of Larmor frequencies of the first and second spin types, are derived from the B0 map. A pulse sequence parameter that describes the excitation spectrum of the radio-frequency pulse sequence is optimized based on the items of distribution information, with regard to a quality criterion that optimizes selective excitation and/or suppression.

In a magnetic resonance measurement sequence, an inversion pulse is applied that acts on a longitudinal magnetization of a first spin species and a second spin species, for example on a water portion and a fat portion. An excitation pulse is applied after a predetermined time period. At least one manipulation pulse is subsequently applied, respectively with associated gradient pulse.

An MR Spectroscopy (MRS) system and approach is provided for diagnosing painful and non-painful discs in chronic, severe low back pain patients (DDD-MRS). A DDD-MRS pulse sequence generates and acquires DDD-MRS spectra within intervertebral disc nuclei for later signal processing & diagnostic analysis. An interfacing DDD-MRS signal processor receives output signals of the DDD-MRS spectra acquired and is configured to optimize signal-to-noise ratio (SNR) by an automated system that selectively conducts optimal channel selection, phase and frequency correction, and frame editing as appropriate for a given acquisition series. A diagnostic processor calculates a diagnostic value for the disc based upon a weighted factor set of criteria that uses MRS data extracted from the acquired and processed MRS spectra along regions associated with multiple chemicals that have been correlated to painful vs. non-painful discs. A diagnostic display provides a scaled, color coded legend and indication of results for each disc analyzed as an overlay onto a mid-sagittal T2-weighted MRI image of the lumbar spine for the patient being diagnosed. Clinical application of the embodiments provides a non-invasive, objective, pain-free, reliable approach for diagnosing painful vs. non-painful discs by simply extending and enhancing the utility of otherwise standard MRI exams of the lumbar spine.

In a method and apparatus for generating corrected magnetic resonance measurement data in an examination region of an object undergoing examination, a magnetic resonance sequence is applied to a subject in order to acquire magnetic resonance measurement data from an examination region within a time period. A first resonant frequency of nuclear spins in the examination region is determined at a first time point within the time period. A second resonant frequency of nuclear spins in the examination region is determined at a second time point within the time period. Magnetic resonance measurement data that are acquired at a further time point within the time period are corrected, based on the first resonant frequency and the second resonant frequency.

Methods and apparatus for processing magnetic resonance imaging (MRI) data to perform bone segmentation. MRI data comprising a set of gradient-echo images acquired throughout a spin echo is processed to generate a bone segmentation image. The bone segmentation image is generated based, at least in part, on at least two images in the set of gradient-echo images, wherein the at least two images include a first image corresponding to a beginning portion of the spin echo and a second image corresponding to a central portion of the spin echo.