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| Number | Title | Issue Date |
| 7679363 | Magnetic resonance imaging apparatus and method of exciting two slices intersecting each other with the intersection parallel moved during spin echo reception With the objective of eliminating variations in signal strength, there is provided a magnetic resonance imaging apparatus in which the process of 90°-exciting and 180°-exciting spins of two slices intersecting each other respectively and receiving a spin echo gene... | 03/16/2010 |
| 7671588 | MRI apparatus and RF transmit gain setting method An MRI apparatus which obtains a tomogram of an object by utilizing magnetic resonance includes a calibrating device which figures out a relationship between a center frequency and an optimal gain of RF transmission with respect to a predetermined range of central f... | 03/02/2010 |
| 7671589 | Calibrating pMRI with cartesian continuous sampling Example systems, methods, and apparatus control a pMRI apparatus to produce a pulse sequence having an extended acquisition window, and overlapping phase-encoding gradients and read gradients. One example method controls a pMRI apparatus to produce a trajectory havi... | 03/02/2010 |
| 7667457 | System and apparatus for detecting gamma rays in a PET/MRI scanner A gamma ray detector ring for a combined positron emission tomography (PET) and magnetic resonance imaging (MRI) system is integrated into a radio frequency (RF) coil assembly such that the detector ring is integrated with a RF shield. Each gamma ray detector in the... | 02/23/2010 |
| 7663364 | Magnetic resonance imaging apparatus, image processing apparatus, computer program product, and data storing method A sequence control unit reconstructs image data by performing predetermined image reconstruction including data synthesis processing on a plurality of k-space data collected for each receiver channel. An inverse reconstructing unit creates k-space data synthesized f... | 02/16/2010 |
| 7656155 | Magnetic resonance imaging apparatus and imaging method in the same A magnetic resonance imaging apparatus is provided. The apparatus includes an imaging unit applying a gradient magnetic field and a radio frequency pulse to an inspection body in an magnetostatic field and generating a magnetic resonance signal, a bed having a top p... | 02/02/2010 |
| 7652475 | Cartesian continuous sampling with unequal gradients Example methods and apparatus control ratios between a maximum gradient amplitude (MGA) of a readout lobe (GREAD) in a Cartesian continuous sampling read gradient (CSRG) and an MGA of a dephase lobe (GDEPHASE) in the CSRG and an MGA of a rephas... | 01/26/2010 |
| 7646198 | Methods for fat signal suppression in magnetic resonance imaging The present invention is directed to methods for chemical species signal suppression in magnetic resonance imaging procedures, wherein Dixon techniques are enhanced by continuously sampling techniques. In the invention, k-space data is acquired during the entire per... | 01/12/2010 |
| 7642775 | MR method of determining local relaxation time values using calibrated phantom An MR method determines local relaxation time values (T1, T2) of an examination object (5). First, two or more MR images (3, 4) of the examination object (5) are recorded, each with different time parameter sets (TR1 | 01/05/2010 |
| 7642776 | Method to determine an acquisition sequence in an imaging method for generation of 2D slice images In a method for determination of an acquisition sequence for slice plane data of slice planes of an examination subject, the slice plane data are acquired with measurement sequences that each includes a preparation phase and a measurement phase temporally separated ... | 01/05/2010 |
| 7639008 | System, method and apparatus for identifying abnormality in MRI RF input circuits by combination mode switching in single MRI sequence scan A real-time system changes a combination of coil elements and channel assignations for each echo by using a pulse sequence, and collects data without performing phase encoding. A host system then calculates a correlation value of data reconstructed for each channel ... | 12/29/2009 |
| 7639007 | Apparatus and method for performing in-vitro DNP-NMR measurements Apparatus for performing in-vitro DNP-NMR measurements on a sample comprises magnetic field generating apparatus (1a, 1b) located in a cryostat (2) and surrounding a bore defining respective NMR and DNP working regions (90, 92 | 12/29/2009 |
| 7635977 | MR imaging with an RF pulse producing reduced magnetization transfer A system and method are provided herein for designing and transmitting RF pulses which cause a reduced off-resonance magnetization transfer saturation. An RF pulse shape may be optimized according to a set of Bloch solutions defining a desired magnetization profile.... | 12/22/2009 |
| 7633290 | Apparatus and method for a fully automated preparation of a hyperpolarizing imaging agent Provided is an apparatus and method for automated hyperpolarization of samples for use as an imaging agent comprising a sample box, an airlock chamber configured to receive a sample from the sample box, a cryogenic chamber, a guide channel to transport samples from ... | 12/15/2009 |
| 7626386 | Singlet-state exchange NMR spectroscopy for the study of very slow dynamic processes A nuclear magnetic resonance (NMR) method for singlet-state exchange NMR-spectroscopy comprises steps of excitation of single-quantum in-phase coherences, generation of single-quantum anti-phase coherences, excitation of zero-quantum coherences ZQx and/or... | 12/01/2009 |
| 7626387 | MRI apparatus and method using sample filtering based on time shifts caused by temporal variations in magnetic field strength An MRI apparatus includes a filtering control unit that filters discrete MR-signal values. A filter-coefficient setting unit sets a plurality of filter coefficients with respect to each point of sampling time, based on time-shift amounts corresponding to variations ... | 12/01/2009 |
| 7626385 | System, method and apparatus for MRI maintenance and support An MRI apparatus consolidates and stores maintenance and/or performance data automatically measured by a measurement unit and data manually input via an input device. The automatically measured data may include an adjustment value, a state value or an error record. ... | 12/01/2009 |
| 7622920 | Magnetic resonance imaging apparatus capable of automatically determining RF coil positions A magnetic resonance imaging apparatus includes an array coil in which a plurality of element coils are arranged to receive magnetic resonance signals from a subject, a calculation unit which calculates projection data for the element coils regarding an arrangement ... | 11/24/2009 |
| 7622921 | Method and device for monitoring radio-frequency exposure in a magnetic resonance measurement In a method and device for monitoring the physiologically effective radio-frequency exposure in at least one specific volume region of an examination subject in a magnetic resonance data acquisition scan in a magnetic resonance system, amplitude values are acquired ... | 11/24/2009 |
| 7622919 | Nuclear magnetic resonance measurement techniques in non-uniform fields Methods and pulse sequences for facilitating nuclear magnetic resonance (NMR) measurements in grossly inhomogeneous fields. Methods and pulse sequences according to the invention may be used to accurately measure variables such as transverse relaxation time, longitu... | 11/24/2009 |
| 7619410 | System and method for accelerated magnetic resonance parallel imaging A system and method for MR imaging includes the use of a form of autocalibrated parallel imaging. By combining a segmented, rotated acquisition trajectory with autocalibration parallel imaging (API), the system and method can achieve improved motion insensitivity wh... | 11/17/2009 |
| 7609058 | Method and apparatus for generating a magnetic resonance data file In a method for operating a magnetic resonance imaging system to generate a magnetic resonance data file, raw magnetic resonance data are acquired, and k-space is established in a computerized storage medium, with k-space being divided into a contiguous central regi... | 10/27/2009 |
| 7609061 | Demagnetized implant for magnetic resonance imaging A method of operating a magnetic resonance imaging (MRI) system is described. A magnetic element in an implanted medical device is demagnetized by exposing it to an external demagnetizing magnetic field. Magnetic resonance imaging of the patient is performed. Then t... | 10/27/2009 |
| 7609060 | Non iterative shimming in magnetic resonance imaging in the presence of high LIPID levels For the brain, a variety of automated non-iterative shimming methods using phase evolution derived B0 maps have been reported. These methods assume that there is only a single chemical species contributing to the image. Although true in the brain, lipid c... | 10/27/2009 |
| 7609059 | Magnetic resonance method and apparatus with nuclear spins type-specific signal suppression A method in the form of a sequence for magnetic resonance imaging with which image data of a subject to be examined are acquired and with which signals of nuclear spins of a specific type are suppressed, includes the steps of (a) application of a suppression module ... | 10/27/2009 |
| 7605587 | Magnetic resonance imaging apparatus A magnetic resonance imaging apparatus is provide that includes static magnetic field generation means arranged around an imaging space where an examinee is to be located and generating a static magnetic field in the imaging space; gradient magnetic field generation... | 10/20/2009 |
| 7602182 | Magnetic resonance system having a base body and a patient bed and inductive or capacitive signal transmission A magnetic resonance system has a base body embodying a magnet system that generates magnetic fields in an excitation region, a patient bed that is movable, with a patient thereon through the base body, a local coil that is operable to detect magnetic resonance sign... | 10/13/2009 |
| 7602179 | System and method for multi-echo bandwidth match imaging A system and method for medical imaging includes an improvement to the MP-RAGE pulse sequence that enables the readout bandwidth thereof to be matched to that of other pulse sequences used in the same examination without a significant loss in SNR. More specifically,... | 10/13/2009 |
| 7602180 | System and method for fast texture-based tensor field visualization for DT-MRI A method for visualizing diffusion-tensor magnetic resonance images, including the steps of providing a diffusion-tensor magnetic resonance image (DT-MRI) volume, positioning and orienting a virtual camera for rendering the volume, the camera having an image plane, ... | 10/13/2009 |
| 7602181 | Apparatus and method for generating a magnetic field by rotation of a charge holding object A device and a method for the production of a magnetic field using a Charge Holding Object that is mechanically rotated. In a preferred embodiment, a Charge Holding Object surrounding a sample rotates and subjects the sample to one or more magnetic fields. The one o... | 10/13/2009 |
| 7598738 | Complete structure elucidation of molecules utilizing single NMR experiment The complete structure of a molecule of interest is determined from a single NMR experiment utilizing a single NMR pulse sequence. The experiment utilizes the same pulse sequence for acquiring various one-dimensional and multi-dimensional spectra, with independent r... | 10/06/2009 |
| 7598737 | Method and control device for determination of the position of a local coil in a magnetic resonance apparatus In a method for determination of a position of a local coil on a bed in at least one spatial direction within a magnetic resonance scanner, a signal intensity value is initially, extracted from magnetic resonance measurements implemented with the appertaining local ... | 10/06/2009 |
| 7595639 | System and method of angular elliptic centric view ordering for 3D MR acquisitions A magnetic resonance imaging (MRI) apparatus includes an MRI system having a plurality of gradient coils positioned about a bore of a magnet. An RF transceiver system and an RF switch are controlled by a pulse module to transmit and receive RF signals to and from an... | 09/29/2009 |
| 7592807 | Maximum likelihood estimator in the presence of non-identically distributed noise for decomposition of chemical species in MRI A method of separating signals from at least two species in a body using echo-coherent time magnetic resonance imaging is provided. A plurality of echo signals is acquired at acquisition times optimized based on the noise properties of images with different variance... | 09/22/2009 |
| 7592808 | System and method for reducing MR scan time using partial fourier acquisition and compressed sensing A system and method for reducing the scan time of an MR imaging system using a data acquisition technique that combines partial Fourier acquisition and compressed sensing includes a computer programmed to acquire a partial MR data set in k-space along a phase encodi... | 09/22/2009 |
| 7579834 | Magnetic resonance imaging apparatus and magnetic resonance imaging method A magnetic resonance imaging apparatus includes a data acquisition unit and an image data generating unit. The data acquisition unit acquires data according to a sequence derived by adding a coherent control pulse on a Steady-State Free Precession pulse sequence for... | 08/25/2009 |
| 7576535 | Multi-compartment separation in magnetic resonance using transient steady-state free precession imaging Disclosed is a method of quantitatively separating tissue signals based on relaxation time differences. The method uses the transient signal decay in steady-state free precession (balanced SSFP) imaging to provide an alternative to standard CPMG methods of T2 | 08/18/2009 |
| 7576536 | MRI method and apparatus for adaptive channel reduction in parallel imaging The subject invention pertains to method and apparatus for parallel imaging. The subject method can be utilized with imaging systems utilizing parallel imaging techniques. In a specific embodiment, the subject invention can be used in magnetic resonance imaging (MRI... | 08/18/2009 |
| 7576537 | RF pulse applying method with an MRI apparatus which reduces vertical magnetization The present invention aims to receive a signal of tissue long in T2 at a relatively high level and suppress artifacts. When a magnetic resonance frequency of a component intended for measurement is assumed to be Ω and the frequency corresponding to a repetition tim... | 08/18/2009 |
| 7573266 | Method and magnetic resonance system for adjustment of the field strength of RF pulses In a method for adjustment of the field strength of radio-frequency pulses as well as a magnetic resonance measurement system, radio-frequency pulses are emitted by a radio-frequency antenna of a magnetic resonance measurement system in a magnetic resonance measurem... | 08/11/2009 |