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7336072 Method for representation of flow in a magnetic resonance image  
In a method for representation of flow in a magnetic resonance image, a first magnetic resonance image of an examination subject is acquired, wherein the flow occurring in the examination subject...
7336074 Active decoupling of MRI RF transmit coils  
An MRI RF transmit system uses a plurality of RF transmit coils, each being driven with separately controllable RF magnitude and phase. The magnitude and phase of each coil drive are separately and...
7336145 Method for designing RF excitation pulses in magnetic resonance tomography  
Waveforms for radio-frequency (RF) excitations pulses used in magnetic resonance imaging are designed according to a Least Squares QR (LSQR) algorithm or a Conjugate Gradient Least Squares (CGLS)...
7332908 SSFP MRI with increased signal bandwidth  
Disclosed is a wideband SSFP, wherein a standard balanced SSFP MRI sequence is played with repetition times of alternating lengths, TR and TR s , where TR s <TR. The result is significantly...
7333846 Method and apparatus for functional magnetic resonance imaging  
In a method and a magnetic resonance apparatus for functional imaging, a number of images without and with a designational stimulation of the examination subject are sequentially registered in...
7332911 Magnetic resonance imaging apparatus  
The present invention provides an MRI apparatus which prevents from developing body move artifacts on the image to improve the image quality. In the navigator sequence a scan unit emits first RF...
7332912 Method for correcting inhomogeneities of the static magnetic field, particularly of the static magnetic field generated by the magnetic structure of a machine for acquiring MRI image  
An exemplary method for correcting inhomogeneities of the static magnetic field generated by the magnetic structure of a machine for acquiring nuclear magnetic resonance images includes determining...
7333848 Method and system for evaluating vertebrobasilar disease  
A method and system are disclosed for evaluating symptomatic VBD which uses quantitative hemodynamic assessment in order to identify patients at high risk for stroke and provide appropriate...
7332909 MR imaging method  
A method for generating an MR image of an object situated in an examination volume of an MR apparatus begins with the acquisition of a plurality of echo signals having at least two different...
7330748 Method for determining in vivo concentration of a metabolite  
Method for determining in vivo concentration of a metabolite that includes administering a contrast agent to a subject, allowing the contrast agent to disperse to tissue of interest, performing...
7330028 Apparatus and method of simultaneous fat suppression, magnetization transfer contrast, and spatial saturation for 3D time-of-flight imaging  
A pulse sequence for time-of-flight (TOF) magnetic resonance angiography (MRA) includes a fatsat segment, a magnetization transfer segment, and a spatial saturation segment that are applied by an...
7330575 Determination of subencoding MRI coil sensitivities in a lower order magnetic field  
A novel magnetic resonance imaging method is presented for forming an image of an object from a plurality of signals acquired by an array of receiver antennae, whereas prior to imaging a...
7327141 Characterization of receiver demodulation for correcting off-axis MR imaging degradation  
A calibration procedure is performed prior to an off-axis MR scan to measure the MRI system timing errors in applying a frequency modulation waveform to the system receiver. Phase errors which...
7327140 Magnetic resonance system and method for checking the positioning of an examination subject  
In a magnetic resonance system and method for checking the positioning of an examination subject, with an image acquisition unit that acquires images of an examination subject by means of nuclear...
7323872 Method and apparatus of directly measuring cross-axis eddy currents for MR scanner calibration  
A pulse sequence is defined to acquire calibration MR data used to characterize on-axis and cross-axis eddy currents resulting from gradient pulses used to spatially encode MR data. The amplitudes...
7323873 Phase error measuring method, MR imaging method, and MRI system  
The present invention is intended to provide a phase error measuring method capable of measuring a phase error occurring in each phase encoding direction that corresponds to the direction of a...
7319784 Magnetic resonance spectroscopy using a conformal voxel  
The goal was to automate and optimize the shaping and positioning of a shape-specific/conformal voxel that conforms to any volume of interest, such as a cranial lesion, to allow conformal voxel...
7319325 Table position sensing for magnetic resonance imaging  
An MRI apparatus is provided. The MRI apparatus includes a main magnet ( 12 ) for generating a main magnetic field in an examination region, a plurality of gradient magnets ( 16 ) for generating...
7319324 MRI method and apparatus using PPA image reconstruction  
In a method and apparatus for magnetic resonance imaging based on a partially parallel acquisition (PPA) reconstruction technique, a number of partial k-space data sets are acquired with a number...
7319328 System, method, and computer-readable medium for magnetic resonance diffusion anisotropy image processing  
A system, method, and computer-readable medium for magnetic resonance diffusion anisotropy image processing are provided.
7317940 MRT apparatus, method and computer program product for determining the speed of a flowing medium  
In a method for automatic determination of the actual speed interval of a flowing medium in flow measurements in magnetic resonance imaging, an overview image (localizer) is acquired displayed on a...
7315756 Multi-slice double inversion-recovery black-blood imaging with simultaneous slice re-inversion  
A multi-slice double inversion recovery (DIR) pulse sequence with read out of a signal for imaging successive slices implemented on a magnetic resonance image scanner. In the method, when the DIR...
7313428 Method and apparatus for magnetic resonance arteriography using contrast agents  
The present invention is a technique of, and system for, imaging vascular anatomy over distance considerably greater than the maximum practical field of view of a magnetic resonance imaging system...
7309984 Parallel magnetic resonance imaging method using a radial acquisition trajectory  
A method for reconstructing an image from undersampled, parallel MRI data sets acquired with a pulse sequence that samples k-space along radial trajectories includes the synthesis of training...
7309985 Method of reconstructing an MR image  
An MR image ( 14 ) is reconstructed from MR signals ( 1, 2, 3, 4 ) that are acquired in parallel by a plurality of receiving coils ( 5, 6, 7, 8 ) with incomplete sampling of the spatial frequency...
7309986 Methods and apparatus for magnetic resonance imaging in inhomogeneous fields  
Methods for providing practical magnetic resonance imaging systems that utilize non-homogeneous background fields, B 0 , as well as, possibly non-linear, gradient fields G 1 , G 2 to make...
7307420 MRI method for simultaneous phase contrast angiography and invasive device tracking  
A method for simultaneously tracking an invasive device disposed within a patient and acquiring an imaging signal of the patient with a magnetic resonance imaging (MRI) system during a single echo...
7308365 Automated projection spectroscopy (APSY)  
A method of projection spectroscopy for N-dimensional NMR experiments with the following steps. Data recording through; a) selection of N-dimensional NMR experiments out of a group of N-dimensional...
7307419 Method and system for spatial-spectral excitation by parallel RF transmission  
A magnetic resonance imaging (MRI) system and method is provided. The MRI system comprises a plurality of transmit coils arranged spatially distinct from each other and configured for inducing a...
7308298 Magnetic resonance imaging using MT pulse of which duration is shorter  
A magnetic resonance imaging technique provides adequate MT effects by applying a shortened MT pulse and scan time. An MT pulse whose frequency is off-resonance to a region to be imaged of an...
7301342 Bunched phase encoding (BPE)  
Systems, methodologies, media, and other embodiments associated with improving MRI scan times and mitigating the effects of aliasing artifacts when the Nyquist data sampling threshold is not...
7298144 Homodyne reconstruction of water and fat images based on iterative decomposition of MRI signals  
Homodyne image reconstruction is combined with an iterative decomposition of water and fat from MR signals obtained from a partial k-space signal acquisition in order to maximize the resolution of...
7298146 Method and apparatus of manual pre-scan spatial and spectral data acquisition  
A method of pre-scan data acquisition includes the application of a pre-scan pulse sequence to acquire MR signals from a region-of-interest to be imaged with an imaging pulse sequence. The pre-scan...
7298143 Reduction of susceptibility artifacts in subencoded single-shot magnetic resonance imaging  
In a magnetic resonance imaging method an echo train is generated of successive magnetic resonance signals from an object to be examined. The magnetic resonance signals are received with a degree...
7295008 Magnetic resonance imaging system and operating method therefor  
In the operation of a magnetic resonance system, an RF excitation coil emits an excitation pulse such that nuclei in an examination subject are excited to emit of magnetic resonance signals. A...
7295006 Method for measuring nuclear magnetic resonance longitudinal axis relaxation time of blood and apparatus using the same  
Disclosed are a method and apparatus for accurately measuring nuclear magnetic resonance (NMR) longitudinal axis relaxation time by minimizing the influence of the amount of blood. The method...
7292034 Method for dynamic detection and change in the magnetic field distribution in magnetic resonance (NMR) measurements  
A magnetic resonance (NMR) method for fast, dynamic, spatially resolved measurement of the temporal changes in NMR signals by means of repeated data acquisition in individual measurements (Acq)...
7292037 Method and device for generating a CT data set  
A method and device generating a computer tomography data set CT* of an object, wherein a nuclear spin tomography recording MR of said object is obtained, and a transformation or mapping protocol...
7292039 Contrast enhancement in magnetic resonance imaging  
Systems and techniques for acquiring a medical image of a region of interest are described. A plurality of electromagnetic excitation pulses are applied to the region of interest according to...
7288937 Image generating method and MRI apparatus  
A method of generating an MR image based on respective data obtained by n (≧2) coils, respective low resolution images are generated using partial data in a low frequency region for the data...
7285954 Imaging and reconstruction of partial field of view in phase contrast MRI  
Phase contrast magnetic resonance images are produced using interleaved spiral k-space scanning with a bipolar phase contrast gradient. Spiral scanning is configured so that acquisition impulse...
7285955 System and method for improved data acquisition for medical imaging  
Various embodiments are described herein for acquiring MRI image data from an object. Various waveforms are provided for producing magnetic field gradients and an RF excitation field such that NMR...
7283862 Rapid multi-slice MR perfusion imaging with large dynamic range  
The present invention includes a method and apparatus to perform rapid multi-slice MR imaging without ECG gating or requiring breath-holding that is capable of renal profusion analysis and...
7279895 Fast generalized autocalibrating partially parallel acquisition image reconstruction algorithm for magnetic resonance imaging  
The present invention proposes a fast GeneRalized Autocalibrating Partially Parallel Acquisition (GRAPPA) image reconstruction algorithm for magnetic resonance imaging. The algorithm simplifies...
7279899 Contrast from rotating frame relaxation by adiabatic pulses  
This document discusses, among other things, a system and method for modulating transverse and longitudinal relaxation time contrast in a rotating frame based on a train of radio frequency pulses.
7279894 Method and magnetic resonance tomography apparatus for location coding with a non-linear gradient field  
A nuclear magnetic resonance tomography apparatus has gradient coils that superimpose at least one gradient field on a basic magnetic field transversely to a coding direction, with an overall...
7279901 Magnetic resonance apparatus and operating method for generating a homogenous RF field in the examination volume  
In a method and magnetic resonance system for generating a homogenous, radio-frequency excitation field in a spatial examination volume of the magnetic resonance system for a subject examination,...
7276905 Method and system of tracking an intracorporeal device with MR imaging  
A system and method for tracking or otherwise determining positioning of an intracorporeal device is provided. The invention includes a device that may be inserted into a subject and tracked based...
7276904 Method for generating T1-weighted magnetic resonance images and quantitative T1 maps  
Methods and systems for generating T1-weighted images are provided. The method includes acquiring a pair of single-shot fast-spin-echo (SSFSE) images S 1 and S 2 . The method further includes...
7274190 Method of monitoring a magnetic field drift of a magnetic resonance imaging apparatus  
The invention enables to monitor a magnetic field drift of a magnetic resonance imaging apparatus on the basis of the magnetic resonance signals, which are acquired during magnetic resonance image...
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