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| Number | Title | Issue Date |
| 8040132 | Method for identifying a sample in a container, e.g. when conducting a traveler survey in the check-in area, by determining the resonance frequency and the quality of a dielectric resonator to which the container is arranged A method and apparatus for identifying a sample in a container, provide for the container with the sample being disposed relative to a resonator, a high-frequency signal being coupled into the resonator for exciting a resonant mode of the resonator, the resonant ele... | 10/18/2011 |
| 7741844 | Method and system for magnetic resonance imaging using labeled contrast agents A method and system for imaging using labeled contrast agents and a magnetic resonance imaging (MRI) scanner are provided. The method comprises performing a prescan at a frequency selected to be substantially similar to a frequency of the labeled contrast agent and ... | 06/22/2010 |
| 7667458 | Phantom for diffusion tensor imaging A phantom for Diffusion Tensor Imaging (DTI) to measure the main physical quantities of diffusion tensors, such as diffusion anisotrophy, a diffusion principal axis and a route of the diffusion principal axis, and to evaluate the accuracy of DTI are provided. The ph... | 02/23/2010 |
| 7612560 | Selectively adjustable phantom that is compatible with a magnetic resonance imaging system and environment A phantom for use in an MRI or MRS system includes an array of subresolvable compartments that are each connected to receive fluid from one of a plurality of fluid reservoirs. The array of compartments is divided into sub-arrays which differ from each other by the m... | 11/03/2009 |
| 7564243 | Method for enhancing the NMR signal of a liquid solution The invention relates to an NMR analysis system and method for obtaining an NMR signal from a liquid solution enhanced in relation to the value that it would have on the basis of the thermodynamic equilibrium. It has been discovered in a surprising manner that if th... | 07/21/2009 |
| 7433787 | System, method, and computer program product using a database in a computing system to compile and compare metabolomic data obtained from a plurality of samples The present invention generates a visual display of metabolomic data compiled by a database and associated processor. More particularly, the present invention provides a database for automatically receiving a three-dimensional spectrometry data set for a group of sa... | 10/07/2008 |
| 7339159 | Phantom for evaluating accuracy of image registration software Provided is a phantom for evaluating the accuracy of image registration software based on a result of matching tomograms of a predetermined position of the phantom, taken using two or more imaging apparatuses. Accordingly, it is possible to more efficiently evaluate... | 03/04/2008 |
| 7301339 | Estimating the concentration of a substance in a sample using NMR A method for estimating a concentration of a substance in a test sample of formation fluid, comprising measuring an NMR parameter of a first sample of formation fluid to obtain a first measurement, adding a known quantity of the substance to the first sample to prod... | 11/27/2007 |
| 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 predetermined parameters, and a predetermined delay period is introduced a... | 11/06/2007 |
| 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 angiographic screening. An ungated interleaved pulse sequence is applied in r... | 10/16/2007 |
| 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) that reconstructs a corrected reconstructed image from acquir... | 05/15/2007 |
| 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 subject outside of a slice of interest, an RF pulse acting selective... | 04/24/2007 |
| 7199581 | Magnetic resonance measuring system determining the mass of samples in a production line with monitored drift compensation Magnetic resonance measurement methods for determining the mass of samples are provided in which magnetic field homogeneity is determined, compensation is provided for potential drifts in the measuring system, and the presence of metal in samples is determined. The ... | 04/03/2007 |
| 7196517 | Combining NMR and density measurements for determining properties of reservoir fluid A method for evaluating formation fluids includes measuring a nuclear magnetic resonance property related to a total volume of the formation fluids, measuring a dielectric property related to an electromagnetic wave travel time, measuring a bulk density, and solving... | 03/27/2007 |
| 7184813 | Method and apparatus for improved metabolite signal separation in MR spectroscopy A technique is set forth for MR spectroscopy that is capable of reducing signal overlap between metabolite signals for improved clinical analysis of metabolite content. The technique includes varying an echo time across a scanning dimension. Once a span of echo time... | 02/27/2007 |
| 7164267 | Magnetic resonance fluid analysis apparatus and method Apparatus and method for providing in-situ data of formation fluids at true reservoir conditions. The apparatus has NMR chamber of the flow-through type, so it is no longer necessary to divert a sample for the basic NMR analysis or transfer it uphole for laboratory ... | 01/16/2007 |
| 7135865 | Nuclear magnetic resonance spectrometer and method for operation thereof There is providesd a nuclear magnetic resonance spectrometer having a high sensitiveness by simultaneously realizing a high uniformity of a static magnetic field and a high measuring sensitiveness. A sample tube used in the nuclear magnetic resonance spectrometer is... | 11/14/2006 |
| 7088098 | System, method and apparatus for tuning an RF volume coil A method for tuning a radio frequency coil of a magnetic resonance imaging system includes disposing a plurality of probes at selected portions of a fixture, disposing the fixture proximate to the radio frequency coil at a first location, and obtaining a first set o... | 08/08/2006 |
| 7084627 | Method for triggering NMR measurement in a NMR check weighing system Magnetic resonance methods are provided for determining the mass of samples in vials (1) in a production line, each sample having a net magnetisation capability, including the steps of applying a first magnetic field in a first direction in an interrogation z... | 08/01/2006 |
| 7081752 | System and method of electrically loading radio-frequency coils using conductive polymers A system and method including an apparatus for use in electrically loading RF coils of an MRI system is disclosed. The apparatus includes a polymer interdispersed with an electrically conductive additive such that the apparatus provides the necessary electrical load... | 07/25/2006 |
| 7075297 | Combining NMR, density, and dielectric measurements for determining downhole reservoir fluid volumes A method for evaluating formation fluids includes measuring a nuclear magnetic resonance property related to a total volume of the formation fluids, measuring a dielectric property related to an electromagnetic wave travel time, measuring a bulk density, and solving... | 07/11/2006 |
| 7069068 | Method for determining haemodynamic indices by use of tomographic data Haemodynamic indices of an organ or a part of tissue are determined from a time series of tomographic data obtained by means of Magnetic Resonance Imaging. Maps of indices are produced, being significant of the dynamics of the capillary tissue flow acquired during r... | 06/27/2006 |
| 7068032 | Gain adjustment method and magnetic resonance imaging apparatus A method for adjusting a gain for reception of a magnetic resonance signal in a magnetic resonance imaging apparatus includes defining an initially set value of a slice thickness as slthick-original, defining a gain fit therefor as prescan-R1, and calculating... | 06/27/2006 |
| 7064548 | RF probe apparatus for NMR check weighing system A radio frequency (RF) probe (10) for a nuclear magnetic resonance check weighing system produces a uniform magnetic field at the center of RF probe (10), has minimal sensitivity to electrical interference from external sources, shapes the magnetic fie... | 06/20/2006 |
| 7049814 | Nuclear quadrupole resonance based inspection system using a highly resonant and compact magnetic structure The present invention is directed toward a magnetic resonance based material detection system that includes a resonator probe which is highly resonant, is cost effective and has a compact magnetic structure with a low cost tuning mechanism and high quality factor (Q... | 05/23/2006 |
| 7038451 | Method, phantom stripe structure and device for determining the modulation transfer function (MTF) of a medical MR system A method for determining the modulation transfer function (MTF) of a magnetic resonance system is described. The method involves recording, by means of the relevant magnetic resonance system, a cross-sectional image of stripe structure (S, S1, S2 | 05/02/2006 |
| 7020509 | Magnetic resonance tomography apparatus and method employing a true FISP sequence with improved off-resonant behavior of two spin ensembles In a magnetic resonance tomography apparatus employing a FISP pulse sequence, the pulse sequence is repeated with a repetition time TR with different phase-coding gradient directions and with an alternating operational sign of the flip angle α. The gradi... | 03/28/2006 |
| 7012427 | Methods and devices for analysis of sealed containers This invention provides methods, NMR probes, and NMR systems for the analysis of the contents of sealed food and beverage containers and the like. ... | 03/14/2006 |
| 6992280 | Test object for calibration of imaging measurements of mammalian skeletal joints The invention provides a test device or “phantom” for use in conjunction with medical imaging modalities. The phantom mimics the properties of joint particular cartilage. The phantom is useful for quality assurance of images of joints obtained using an array of ... | 01/31/2006 |
| 6980847 | Apparatus for dynamic angular position tracking A magnetic resonance imaging (“MRI”) system and method of correcting for the motion of a subject during an MRI scan. The motion of a subject in an MRI scan is corrected by acquiring nuclear magnetic resonance (“NMR”) spectra of an ordered material attached t... | 12/27/2005 |
| 6965235 | Apparatus to simulate MR properties of human brain for MR applications evaluation A system and method for mimicking a human brain for MR imaging at various magnetic field strengths is disclosed. A phantom is constructed of a structure having a number of sections. A first section contains a mixture of nickel chloride, agarose gel powder, potassium... | 11/15/2005 |
| 6958609 | Nuclear magnetic resonance analysis of multiple samples A Nuclear Magnetic Resonance (NMR) probe device (20) is disclosed. NMR probe device (20) includes a plurality of detection coils (30, 40) each operable to detect a signal from a corresponding one of a plurality of samples (34, 44) undergo... | 10/25/2005 |
| 6956371 | Method and apparatus for detecting diffusion sensitive phases with estimation of residual error in NMR logs A method and system are disclosed for NMR echo-train data acquisition and processing for enhanced tracking of the error in the signal due to magnetoacoustic effects, known as ringing, that are not cancelled out or otherwise corrected. In one aspect, the method enabl... | 10/18/2005 |
| 6956372 | System and method for NMR logging with helical polarization Nuclear magnetic resonance well logging apparatus and method of use for geophysical examination of a borehole as the borehole is drilled. The apparatus is connected to the drill bit to follow it through the borehole as the borehole is formed. The apparatus comprises... | 10/18/2005 |
| 6952096 | Method and apparatus for determining speed and properties of flowing fluids using NMR measurements A method for determining a property of a flowing fluid by nuclear magnetic resonance includes applying a static magnetic field to the flowing fluid; acquiring a suite of nuclear magnetic resonance measurements on the flowing fluid using a pulse sequence comprising a... | 10/04/2005 |
| 6949926 | Biomagnetic measurement apparatus A biomagnetic measurement apparatus having functions to detect the release of a magnetic field lock in a SQUID fluxmeter operation circuit due to the influence of a much greater noise level than that of a biomagnetic signal, to notify an operator of the release of t... | 09/27/2005 |
| 6946837 | Method for measuring the content of fat/oil in multi component system The invention is a method for determination of the content of fat in a multicomponent system. The method applies nuclear magnetic resonance (NMR) for the detemination of fat/oil in for example fillets of fish, olives, paint or ice cream. ... | 09/20/2005 |
| 6937846 | Pin diode circuit arrangement A PIN diode switching system is provided, particularly for the transmission stage of a mobile radio telephone, in which, when the PIN diode switching system is in a reverse-bias state, a PIN diode is isolated from its power supply via a high-impedance switch and is,... | 08/30/2005 |
| 6911822 | Methods and devices for analysis of sealed containers This invention provides methods, NMR probes, and NMR systems for the analysis of the contents of sealed food and beverage containers and the like. ... | 06/28/2005 |
| 6867591 | NMR transfer standard A device for simulating a sample of gas having a specific level of polarization when measured by a NMR pickup coil includes an active circuit loosely coupled to the NMR pickup coil. The active circuit responds as a hyperpolarized gas having the specific level of pol... | 03/15/2005 |
