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7274191 |
Integrated on-chip NMR and ESR device and method for making and using the same
An embodiment if the invention relates to an integrated on-chip NMR or ESR device for performing chemical analysis and medical diagnostics. Specifically, the device contains, on a single substrate,...
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7271588 |
Method and apparatus for acquiring multidimensional spectra and improved unidimensional spectra within a single scan
Method and apparatus for treating a sample to acquire multidimensional spectra within a single scan that partitions a sample into a set of independent subensembles endowed with different resonance...
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7271591 |
Methods and apparatus for MRI shims
A method includes heating a MRI shim with a heater to reduce a temperature rise per unit of time during a gradient operation of a MRI system.
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7268551 |
Inter-subject coherence in DT-MRI
A method for estimating a value of a diffusion tensor includes obtaining, from a plurality of test subjects, DT-MRI data from which an initial estimate of the tensor can be derived. Values...
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7266406 |
Magnetic resonance apparatus
In a magnetic resonance apparatus, the transmission coil for generating the radiofrequency excitation field is stationarily arranged. The geometry of the transmission coil is permanently...
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7265545 |
Method and apparatus for accelerated spiral-coded imaging in magnetic resonance tomography
In a method and apparatus for accelerated spiral-coded imaging (scanning k-space with a spiral trajectory) in magnetic resonance tomography, the user-defined sequence forming the basis of the...
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7265546 |
Method and MR apparatus for PPA MR imaging with radial data acquisition
In a method and for MR apparatus PPA imaging with radial data acquisition in magnetic resonance tomography, k-space is under-scanned by acquiring a number of projections φ with a coil array of M...
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7265548 |
MR method for minimizing the chemical shift artifact, using a localized spatially dependent saturation pulse
In a method for switching a localized saturation pulse in magnetic resonance spectroscopy or magnetic resonance imaging, magnetic field gradients are switched during the saturation pulse, with the...
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7265547 |
Method and apparatus for acquiring MR data with a segmented multi-shot radial fan beam encoding order
An MR imaging apparatus is presented and includes a plurality of gradient coils positioned about a bore of a magnet to impress a polarizing magnetic field. An RF transceiver system and an RF switch...
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7262599 |
Method and control device for obtaining magnetic resonance data for imaging
The invention relates to the obtainment of magnetic resonance measurement data for the reproduction of an image of an object volume, illustrating the contrast between volume elements (voxels) which...
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7259558 |
Method for detection and imaging of synchronous spin and charged particle motion
A method of nuclear magnetic resonance (NMR) imaging is proposed for the rapid detection of oscillatory motion of spins or charged particles to generate shear waves or oscillating electrical...
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7259560 |
Magnetic resonance imaging apparatus and method
A method of controlling a magnetic resonance imaging apparatus is provided with generating a gradient magnetic field in a predetermined space, calculating a duration time period of a rate of a...
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7259762 |
Method and system for automatically transforming CT studies to a common reference frame
A method for automatically transforming computed tomography (CT) studies to a common reference frame includes transforming selected CT studies to the common reference frame and generating a...
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7259559 |
Coil element selection method and magnetic resonance imaging apparatus
To visually, readily and positively performing the selection of a coil element and a combination of coil elements most suitable for the MRI scan, a low resolution imaging step for imaging at a low...
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7256579 |
Method for imaging biological matter using an adiabatic pulse
The present invention includes a method for MR imaging of a biological matter having H 2 O 17 content by performing T1 ρ off imaging of said H 2 O 17 content in said biological matter. The T1...
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7256580 |
Magnetic resonance imaging apparatus and magnetic resonance imaging method
A magnetic resonance imaging apparatus comprising an imaging condition setting unit, a gradient coil, a radio frequency coil, a data acquisition unit, an image reconstructing unit and an image data...
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7254437 |
MR imaging providing tissue/blood contrast image
A magnetic resonance imaging (MRI) system includes an ECG detector for the patient object being imaged and an element for performing an MRI pulse sequence. An imaging unit defined by the pulse...
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7254435 |
Method and magnetic resonance apparatus for calibrating coil sensitivities
In a method and magnetic resonance imaging apparatus wherein magnetic resonance signals are simultaneously received from an examination subject by multiple reception coils, a single, uninterrupted...
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7253620 |
Spectrally selective suppression with steady-state free precession
A method that exploits the intrinsic selectivity of steady-state free precession (SSFP) to perform spectral suppression is disclosed. Such a method avoids the need to incorporate additional...
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7251519 |
MR-method for the in vivo measurement of temperature or pH-value by means of a hyperpolarised contrast agent
The present invention provides a method of MR investigation of a sample, said method comprising: (i) nuclear spin polarizing a high T1 MR imaging agent which contains in its molecular structure at...
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7250764 |
Shielded dome resonator for MR scanning of a cerebrum
A dome resonator ( 11 ) includes a resonator circuit ( 70 ) that excites and/or receives radio frequency magnetic resonance signals that emanate from a region of interest ( 14 ). The resonator...
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7251310 |
Method and apparatus for detecting contraband using radiated compound signatures
An system for detecting contraband, particularly explosives or other energetic materials. The system includes a source of ionizing radiation that irradiates an item under inspection. The radiation...
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7250762 |
Method 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...
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7245124 |
Under-sampled 3D MRI using a shells k-space sampling trajectory
A 3D MRI image is acquired as a series of spherical shells of increasing radius. Each shell is sampled by one or more interleaved spiral sampling trajectories and to shorten the scan time one or...
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7245125 |
Magnetic resonance imaging apparatus and method wherein streak artifacts are minimized in modular k-space scanning
In a method and MRI apparatus for the minimization of streak artifacts in modular k-space scanning in magnetic resonance imaging, an odd integer k-space scanning module number N φ =2n+1 is defined...
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7239141 |
Magnetic resonance apparatus and gradient coil/radio frequency unit therefor with fracture-resistant electrical connections
A magnetic resonance apparatus has an integrated gradient and radio frequency coil unit that includes at least one antenna rod with a conductor and a gradient coil unit. At least one electrical...
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7239906 |
Magnetic resonance imaging system including a transpolar fixture
A magnetic resonance imaging system is provided with a fixture which can be mounted to the static field magnet within the patient-receiving space of the magnet. The fixture can support and...
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7239138 |
Magnetic resonance method and device
A portion of an object is subjected to a T2-preparation sequence. The portion of the object is subjected to a 2D navigator restore sequence. Subsequent to subjecting the portion of the object to...
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7235973 |
Phased array coils utilizing selectable quadrature combination
A magnetic resonance imaging apparatus includes a main magnet ( 12 ) for generating a main magnetic field in an examination region ( 14 ), a plurality of gradient coils ( 22 ) for setting up...
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7235972 |
Keyhole echo-planar imaging with double (T1 and T2*) contrast (DC-EPIC)
An object is examined by detecting properties of the object at different times within a space formed by spatial frequencies. This is done such that temporally consecutive recordings are made in...
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7233144 |
Method and system for performing image reconstruction in a magnetic resonance imaging system
Methods and Systems for image reconstruction in magnetic resonance imaging (MRI) are provided. The method includes receiving MRI data and storing the received MRI data. The method further includes...
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7233143 |
BRORC-S2PD
Systems, methodologies, media, and other embodiments associated with a block-by-block off-resonance frequency estimation method are described. One exemplary method embodiment includes calculating a...
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7233145 |
Method for magnetic resonance imaging with correction for fluctuations in the tramsission field strength
In a method for magnetic resonance imaging, whereby magnetic resonance signals in a region of interest of an examination subject are generated in an examination by applying radio-frequency pulses...
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7233818 |
Methods and apparatus for mapping internal and bulk motion of an object with phase labeling in magnetic resonance imaging
Magnetic resonance imaging method and apparatus are provided for mapping the internal or bulk motion of an object by labeling the phase of a specimen magnetization with a selected spatial function...
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7230423 |
Method for improving the image homogeneity of image data from phase-cycled steady state sequences
Nuclear spin tomography (synonym: magnetic resonance tomography, MRT) is applied in medicine for the purpose of examining patients. A method is proposed for improving the image homogeneity of image...
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7230424 |
Magnetic resonance imaging
Through advancing the phase of radio frequency (RF) excitation with each phase-encoding level, a method and apparatus increases the effectiveness of a Magnetic Resonance Imaging (MRI) device by...
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7227361 |
RF coil and magnetic resonance imaging apparatus
A magnetic resonance imaging apparatus acquires magnetic resonance signals by the PI method using an RF coil unit having basic coils serving as surface coils which are arrayed with at least two...
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7227359 |
Method and apparatus for phase-sensitive magnetic resonance imaging
Systems and methods are described for phase-sensitive magnetic resonance imaging using an efficient and robust phase correction algorithm. A method includes obtaining a plurality of MRI data...
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7227356 |
Method and apparatus of multi-echo MR data acquisition with non-discrete flip angle train
An imaging technique is disclosed to reduce ringing artifacts from amplitude decay in MR multi-echo acquisition. A flip angle train is determined to match scan parameters for an MR scan to acquire...
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7227357 |
Method for positioning a slice of a magnetic resonance measurement
A method is disclosed for positioning a slice of a magnetic resonance measurement and allowing a graphic determination of the slice to be measured on the basis of a distortion-corrected magnetic...
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7224941 |
System and method for multi-path simulation
The present invention provides a system and method for multi-path simulation that employs a shielded anechoic chamber to avoid external electromagnetic interference and other uncontrollable...
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7224165 |
Method, dielectric element, and MR system for generating an MR exposure
For generating of magnetic resonance exposures of an examination subject, a dielectric element with high dielectric constant is positioned on the examination subject to locally influence the B 1 ...
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7221161 |
Coil arrays for parallel imaging in magnetic resonance imaging
A system and method for configuring coils in a coil array are provided. The system includes a coil arrangement for a medical imaging system. The coil arrangement includes a plurality of coil...
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7218107 |
Adaptive image homogeneity correction for high field magnetic resonance imaging
An apparatus for producing a corrected reconstructed image from magnetic resonance imaging data acquired by a magnetic resonance imaging scanner ( 10 ) includes a reconstruction processor ( 44 )...
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7218110 |
Method and apparatus for diffusion magnetic resonance imaging with the effects of eddy currents compensated
A method and a system for acquiring diffusion magnetic resonance images with compensation of the effects of eddy currents induced by the diffusion weighting (DW) gradient pulses. Prescan data are...
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7218105 |
Nuclear quadrupole resonance measurements
An apparatus for exciting and detecting NQR in a substance containing quadrupole nuclei responsive to the NQR phenomenon. The apparatus includes a coil 15 for irradiating an item that may contain...
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7218108 |
Magnetic resonance imaging apparatus and processing method for magnetic resonance imaging collection data
A magnetic resonance imaging apparatus includes: a sensitivity map database that stores sensitivity map data of a multi-coil including plural coils necessary for parallel imaging unfolding...
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7218109 |
Method and control device for operating a magnetic resonance tomography apparatus to select appropriate local coils
In a method for generation of magnetic resonance exposures and a control device for a magnetic resonance tomography apparatus, a number of coils are available in the apparatus, the coils being are...
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7215124 |
Method and apparatus for improving the quality of kinematic MR images
A method and apparatus for magnetic resonance (MR) imaging of a moving object, and in particular MR imaging by retrospectively selecting and sorting the MR data acquired with the known prior...
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7208950 |
Magnetic resonance apparatus and operating method therefor employing a steady-state pulse sequence
In a method for operating a magnetic resonance apparatus with a steady-state pulse sequence and a magnetic resonance apparatus for implementing the method, to reduce magnetization in an examination...
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