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Class 324/307 - Using a nuclear resonance spectrometer system


Subclass of Class 324 - Electricity: measuring and testing
Definition: Subject matter in which a spectrometer is used to induce
No. of patents: 2154
Last issue date: 02/07/2012


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NumberTitleIssue Date
8111068Reducing effects of rotational motion
A method and system for improving image quality by correcting errors introduced by rotational motion of an object being imaged is provided. The object is associated with a fiducial mark. The method provides a computer executable methodology for detecting a rotation ...
02/07/2012
8111067Positional magnetic resonance imaging
A patient is examined by magnetic resonance imaging in different positions relative to gravity by moving the patient relative to the magnet, and the acquired data is compared to show differences in anatomy due to differences in patient position. Individual data elem...
02/07/2012
8106655Multiplex imaging systems, devices, methods, and compositions including ferromagnetic structures
Multiplex imaging systems, devices, methods, and compositions are provided. A nuclear magnetic resonance imaging composition includes, but is not limited to, a plurality of ferromagnetic microstructures configured to generate a time-invariant magnetic field within a...
01/31/2012
8093894Magnetic resonance imaging apparatus and magnetic resonance imaging method for improving uniformity in sensitivity map
A magnetic resonance imaging apparatus includes a sensitivity map data generating unit and a sensitivity corrected image data generating unit. The sensitivity map data generating unit generates reference image data based on data for generating sensitivity map data o...
01/10/2012
8093895Magnetic resonance imaging apparatus and magnetic resonance imaging method of controlling image contrast
A magnetic resonance imaging apparatus includes a data acquisition unit and an image data generating unit. The data acquisition unit acquires MR signals for imaging by an imaging scan with a frequency-selective or slice-selective radio frequency intermediate pulse f...
01/10/2012
8089278Time-resolved contrast-enhanced magnetic resonance (MR) angiography
The techniques and systems described in this application can be used to, in one implementation, optimize data acquisition including sampling trajectories and undersampling factors. A method performed by a nuclear magnetic resonance imaging (MRI) system comprises app...
01/03/2012
8085041Three-point method and system for fast and robust field mapping for EPI geometric distortion correction
A system and method for MR magnetic field mapping includes a computer programmed to acquire a first data point at a first location in a first phase image data set, a second data point at the first location in a second phase image data set, a third data point at the ...
12/27/2011
8085042Method and device for automatic determination of slice positions in an MR examination
Two method and device embodiments allow automatic determination of slice positions in an MR examination in an MR system. In the first embodiment, a volume to be measured by the MR examination is predetermined. The MR examination is subsequently planned in that at le...
12/27/2011
8080997Magnetic resonance imaging (MRI) apparatus and method for reduced eddy current generation in the imaged object
An MRI apparatus and method reduces eddy currents generated by changing gradient magnetic fields used to image an object. Positioning image data from a pilot imaging mode is used to set reference imaging conditions for a subsequent actual diagnostic imaging mode use...
12/20/2011
8080996Magnetic resonance imaging apparatus and position setting support method thereof
According to the present invention, in a magnetic resonance imaging apparatus that receives magnetic resonance signals emitted from a patient by using a reception coil and reconstructs an image of the test subject from the received magnetic resonance signals, first ...
12/20/2011
8076936Reducing imaging-scan times for MRI systems
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 T1ρ prep...
12/13/2011
8076935Magnetic resonance imaging (MRI) using SPIR and/or chess suppression pulses
A magnetic resonance imaging apparatus includes an imaging condition setting unit and an image data acquisition unit. The imaging condition setting unit sets an imaging condition applying first and second suppression pulses of which at least ones of types, center fr...
12/13/2011
8076937Fibre tracking on the basis of macroscopic information
A diffusion data processing apparatus comprising a segmenter arranged to segment the diffusion tensor data according to at least one segmentation model representing at least part of a fiber bundle. The segmentation model may comprise macroscopic and/or microscopic i...
12/13/2011
8067936Frequency swept excitation for magnetic resonance
A method of magnetic resonance is provided that uses a frequency swept excitation wherein the acquired signal is a time domain signal is provided. In one embodiment, the method comprises, applying a sweeping frequency excitation and acquiring a time domain signal. T...
11/29/2011
8058872Systems, devices, methods, and compositions including functionalized ferromagnetic structures
Magnetic resonance systems, devices, methods, and compositions are provided. A nuclear magnetic resonance imaging composition includes, but is not limited to, a plurality of functionalized ferromagnetic microstructures configured to generate a time-invariant magneti...
11/15/2011
8054075Method for magnetic resonance imaging using inversion recovery with on-resonant water suppression including MRI systems and software embodying same
Featured are methods for magnetic resonance imaging of a volume, such a volume having susceptibility-generating objects or interfaces having susceptibility mismatches therein. Such a method includes selectively visualizing one of susceptibility-generating objects or...
11/08/2011
8054076Method and magnetic resonance system to generate a fat-reduced, spatially resolved magnetic resonance spectrum
In a method and apparatus for generating a fat-reduced, spatially resolved magnetic resonance spectrum of an examination subject, first measurement data are acquired to generate a spatially resolved spectroscopy measurement, second spatially resolved measurement dat...
11/08/2011
8054077Ferromagnetic frame magnet with superconducting coils
A magnetic resonance imaging magnet includes a ferromagnetic frame. A pair of generally toroidal superconducting coil units overlie interfaces of side walls incorporated in the frame. Each coil unit may include a vessel having hollow support extensions extending int...
11/08/2011
8049496Wideband magnetic resonance imaging apparatus and method
A magnetic resonance imaging (MRI) method is provided, including the steps of generating a wideband RF signal that has a plurality of frequency bands respectively corresponding to a plurality of different kinds of nuclei, to simultaneously excite the different kinds...
11/01/2011
8035379Coil energization apparatus and method of energizing a superconductive coil
A coil energizing apparatus has a superconducting energization power supply having an output port. The power supply is arranged to generate, when in use, a pulsed output current signal at the output port. ...
10/11/2011
8035378Magnetic resonance system with power loss-optimized operation
A magnetic resonance system has multiple individual transmission antennas each charged with a transmission current to emit an individual excitation field in an examination volume to excite magnetic resonances in a subject, producing a total excitation field as a sup...
10/11/2011
8035377Method for excluding magnetic objects from magnetic resonance imaging facility
A method to screen individuals specifically for paramagnetic or ferromagnetic objects they may be carrying or wearing, before they enter the high-field region of an MRI suite. The device used comprises either a screening portal or a compact, hand-held magnetic gradi...
10/11/2011
8030920Method and system for modifying pulse sequences
Methods and systems are provided for modifying a pulse sequence. In one embodiment, a determination is made whether an estimated peripheral nerve stimulation (PNS) associated with a pulse sequence exceeds a PNS limit. If the estimated PNS exceeds the PNS limit, a sl...
10/04/2011
8030921Methods for fat signal suppression in magnetic resonance imaging
This application is directed to methods for chemical species signal suppression in magnetic resonance imaging procedures, where Dixon techniques are enhanced by continuously sampling techniques. K-space data is acquired during a period of read gradient associated wi...
10/04/2011
8022699Method and apparatus for acquiring a magnetic resonance image of tissue containing iron oxide
In a method and apparatus for acquisition of a magnetic resonance (MR) image of tissue containing iron oxide particles frequency-selective inversion of the longitudinal magnetization in the tissue is done before acquisition of the MR image, and acquisition of the MR...
09/20/2011
8008915Magnetic resonance imaging apparatus and magnetic resonance imaging method
A magnetic resonance imaging apparatus includes a data acquisition unit and an image generating unit. The data acquisition unit acquires echo signals by echo planar imaging which generates the echo signals by applying plural phase-encoding gradient magnetic field pu...
08/30/2011
7994784Systems and methods for rescaling image intensities with diffusion MRI to synthesize complex diffusive geometries
A method for scaling MR signal intensity after noise has been removed is disclosed. Because the signal in a DTI series varies with the apparent diffusivity in the direction of an applied gradient, one can multiply image data collected under actual clinical condition...
08/09/2011
7990140MRI apparatus
A flip-angle calculating unit calculates a flip angle of a fat-suppression pulse by inputting scanning parameters read from a scanning-parameter storage unit based on scanning conditions set by a scan-condition setting unit and a desired fat-suppression level, into ...
08/02/2011
7990141Streamlined diagnostic MR imaging requiring only three control parameters of operator selected boundary conditions
In a method for operation of a magnetic resonance system, at least one control device is fashioned for image data acquisition and corresponding components, and only three first control parameters defining primary boundary conditions are selected by an operator of th...
08/02/2011
7977942Apparatus and method for tracking movement of a target
The present invention discloses an apparatus and method to track the movement of a target. One embodiment tracks the movement of the patient during medical imaging scanning using optical technology. Optical systems record the position and movement of the target and ...
07/12/2011
7956612System and method for displaying medical imaging spectral data as hypsometric maps
A system and method for displaying MR spectroscopy data acquired using a magnetic resonance imaging (MRI) system includes acquiring MR spectroscopy data from a region of interest using the MRI system. The MR spectroscopy data is processed to determine relative spect...
06/07/2011
7956611Magnetic resonance imaging apparatus and method
A magnetic resonance imaging apparatus comprises a plurality of high-frequency reception coils, sensitivity distribution information obtaining means for calculating sensitivity distribution information of each of the high-frequency reception coil, sensitivity distri...
06/07/2011
7952354System and method for fast MR imaging of metabolites at selective excitation frequencies
A system and method are provided for imaging multiple substances, such as contrast agents and metabolites in vivo, with selective excitation frequencies. A first substance is excited with a frequency selective pulse, then a second substance is excited with another f...
05/31/2011
7952353Method and apparatus for field map estimation
A method for estimating values of a field map to generate a magnetic resonance display image with species separation is provided. A set of MR images is acquired based on an applied magnetic resonance excitation. A set of feasible field map values for each pixel in a...
05/31/2011
7952351Method and system of MR imaging with reduced FSE cusp artifacts
Coil sensitivity of a receive coil to a gradient null location is measured and, from the measurements, a coil calibration value is determined and used to modify the MR data acquired with that receive coil to reduce the adverse effects of gradient nulling on MR image...
05/31/2011
7952352Method of locally measuring mobility of protic solvent in sample, instrument of locally measuring mobility of protic solvent in sample, measuring instrument locally measuring behavior of protic solvent in sample based on magnetic
An instrument locally measuring mobility of a protic solvent in a sample 115 based on the gradient magnetic field NMR method has a sample stage 116 on which the sample 115 is placed, a magnet 113 applying a static magnetic field to the sa...
05/31/2011
7948235Low power broadband spin decoupling
In a magnetic resonance data acquisition method, magnetic resonance is excited (72, 74) in an observed nuclear species. Magnetic resonance data of the observed nuclear species are acquired (76). A plurality of different broadband decoupling radio frequ...
05/24/2011
7944206Method and apparatus for acquiring high resolution spectral data or high definition images in inhomogeneous environments
A method and apparatus for treating a sample for acquiring high-definition magnetic resonance images (MRI images) or high resolution nuclear magnetic resonance (NMR) spectra even in the presence of magnetic field distortions within one or multiple scans. The spatial...
05/17/2011
7932719Magnetic resonance contrast using fictitious field relaxation
A system includes a signal generator and a processor. The signal generator is configured to couple with a magnetic resonance transmitter coil. The processor is configured to execute instructions to control the signal generator. The instructions include forming a seq...
04/26/2011
7924005Arrangement to connect gradient current feed lines in a magnetic resonance apparatus
An arrangement for connection of gradient current feed lines in a magnetic resonance apparatus has an electrically insulating connection plate with at least one connection device. The connection device is fashioned to electrically connect a first gradient current fe...
04/12/2011
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