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| Number | Title | Issue Date |
| 8175678 | Multiple contrast agent injection for imaging MRI based molecular imaging is strongly supported by the accurate quantification of contrast agents. According to an exemplary embodiment of the present invention, contrast agent is applied on the basis of a multiple injection application scheme, during which change... | 05/08/2012 |
| 8135452 | Rapid 3-dimensional bilateral breast MR imaging Provided is a method for rapid, 3D, dynamic, projection reconstruction bilateral breast imaging using simultaneous multi-slab volume excitation and radial acquisition of a contrast enhanced bilateral image, in conjunction with SENSE processing, using k-Space Weighte... | 03/13/2012 |
| 8116844 | Angiographic method and apparatus allowing identification of contrast agent propagation In a method and apparatus for acquisition of angiographic data sets of a region of an examination subject, into whose bloodstream a contrast agent has been introduced, a data set of the region to be examined is acquired during a first propagation phase of the contra... | 02/14/2012 |
| 8086297 | Dark blood delayed enhancement magnetic resonance viability imaging techniques for assessing subendocardial infarcts The technology herein provides a dark blood delayed enhancement technique that improves the visualization of subendocardial infarcts that may otherwise be disguised by the bright blood pool. The timed combination of a slice-selective and a non-selective preparation ... | 12/27/2011 |
| 8078258 | Assessment of vascular compartment volume for PET modelling A method is described for acquiring and analysing the data produced by Positron Emission Tomography (PET), which method provides for an accurate estimation of vascular compartment volume, VB. An MRI scan and the PET scan is performed simultaneously and th... | 12/13/2011 |
| 8078259 | Method and apparatus for magnetic resonance imaging of arteries using a magnetic resonance contrast agent Systems and methods for contrast-enhanced magnetic resonance angiography in which both arterial-phase image data and post-contrast image data is collected. ... | 12/13/2011 |
| 8005530 | Method and apparatus for imaging abdominal aorta and aortic aneurysms Technique and apparatus for acquiring anatomic information used in diagnosing and characterizing abdominal aortic aneurismal disease and the like. This technique provides anatomic information, in the form of images, using a combination of a plurality of magnetic res... | 08/23/2011 |
| 7991451 | Method of operation for a magnetic resonance imaging suite A method of operation for a magnetic resonance imaging suite. A power supply of magnetic resonance injector system receives electrical power from an AC power outlet, both of which are located outside of a shielded room of the magnetic resonance imaging suite. Electr... | 08/02/2011 |
| 7991452 | Contrast enhanced MRA with highly constrained backprojection reconstruction using phase contrast composite image Mask projection views are obtained prior to the arrival of a contrast agent during a dynamic contrast enhanced MRA study. After the arrival of the contrast agent, a set of undersampled contrast enhanced projection views are obtained for each of a plurality of time f... | 08/02/2011 |
| 7966056 | Magnetic resonance imaging method and compounds for use in the method The present invention relates to a magnetic resonance imaging (MRI) method, in particular to a MRI method enabling early detection of myocardial ischemia and to compounds for use as MR contrast agents in the method. ... | 06/21/2011 |
| 7941204 | Magnetic resonance imaging concepts Methods of acquiring magnetic resonance imaging (MRI) data for angiography. The present invention includes novel magnetization preparation schemes where the navigator and fat saturation pulses are executed in steady state after the preparatory pulses in order to min... | 05/10/2011 |
| 7809426 | Acquiring contrast-enhanced, T1 weighted, cine magnetic resonance images A method of magnetic resonance imaging of anatomy that is subject to a movement cycle (e.g., the heart during a cardiac cycle), comprising: administering a magnetic resonance contrast agent; waiting a period of time until the contrast agent is effective to cause sel... | 10/05/2010 |
| 7778684 | MRI resonator system with stent implant A stent is adapted to be implanted into the lumen of a vessel. The stent includes struts and a resonating circuit tuned to the resonating frequency of a magnetic resonance imaging system. The resonant circuit is constructed of at least one inductor and at least one ... | 08/17/2010 |
| 7747309 | Method and apparatus for administration of contrast agents for use in magnetic resonance arteriography The present invention is a method and apparatus for providing preferential enhancement of an artery of interest relative to adjacent veins and background tissue. The method and apparatus adapts the timing of a maximum or substantially elevated rate of infusion to co... | 06/29/2010 |
| 7689267 | Method and apparatus for magnetic resonance imaging of arteries using a magnetic resonance contrast agent The present invention is a technique and apparatus for providing preferential enhancement of an artery of interest relative to adjacent veins and background tissue by correlating the collection of a predetermined portion of data (for example, image data which is rep... | 03/30/2010 |
| 7680527 | Method and apparatus for imaging abdominal aorta and aortic aneurysms The present invention is a technique and apparatus for acquiring anatomic information used in diagnosing and characterizing abdominal aortic aneurismal disease and the like. This technique provides anatomic information, in the form of images, using a combination of ... | 03/16/2010 |
| 7660622 | Method and system for positioning a tracking sensor for optimal accuracy The present invention provides a method for positioning an electromagnetic tracking sensor. The method includes attaching a sensor to an anatomy, obtaining an image of the anatomy, indicating a size of each of a plurality of volumes on the image, where the volumes i... | 02/09/2010 |
| 7620442 | Colonography on an unprepared colon A method for generating colonography images for colorectal screening of a patient. The patient is administered an amount of radiopaque stool marker which will enable stool present in the patient's colon to be distinguished from soft tissue. The patient's colon is im... | 11/17/2009 |
| 7610077 | Quantitation of sample properties using contrast enhancement from saturation transfer The manipulation of RF irradiation to a subject in which a CEST agent has been administered is employed to determine a biological parameter in vivo in conjunction with an MRI imaging process. The exchange rate of the CEST agent is determined through RF manipulation ... | 10/27/2009 |
| 7587234 | Method and apparatus for computer modified magnetic resonance imaging A device is presented including a medical device adapted to be inserted in an anatomy. The medical device has many target markers. A magnetic resonance imaging (MRI) system will not detect or will disregard the medical device as noise without information obtained on... | 09/08/2009 |
| 7583992 | Magnetic resonance angiography with automated vessel segmentation A magnetic resonance angiogram (MRA) is acquired using a contrast enhancement method in which a series of NMR images are rapidly acquired during a time resolved phase of the examination in which the contrast bolus makes a first pass through the arteries and veins. A... | 09/01/2009 |
| 7570985 | Method and apparatus for magnetic resonance imaging using contrast agent Monitor scans are performed before imaging scans with respect to a patient injected with a contrast agent. Magnetic resonance images of a plurality of slices of the patient are acquired, usually continuously, in the monitor scans. Projection images are generated fro... | 08/04/2009 |
| 7558615 | Method and apparatus for intervention imaging in magnetic resonance tomography In a method and apparatus for interventional imaging in magnetic resonance tomography, a contrast agent liquid is prepared by saturation or excitation of the nuclear spins therein, such that it shows with a poor signal in the vessel system of a patient to be examine... | 07/07/2009 |
| 7512434 | Remotely powered injector A remotely powered magnetic resonance (NR) contrast media injector eliminates the use of batteries to power a power head in a shielded magnet room thereby eliminating inconvenient and costly charging and replacing of batteries. In particular, a power supply regulate... | 03/31/2009 |
| 7467006 | Magnetic resonance imaging system and contrast-enhanced angiography An MRI system capable of acquiring a high-quality blood vessel image even during a measuring period other than at an injected contrast medium concentration peak by always picking up an image under optimum conditions while following up with an injected contrast mediu... | 12/16/2008 |
| 7457657 | Magnetic resonance method and apparatus for determining the position and/or orientation of the image plane of slice image exposures of a vessel region in a contrast agent bolus examination In a method and a magnetic resonance system for determining the position and/or orientation of the image plane of slice image exposures of a vessel region in a contrast agent bolus examination, in particular in the region of the aorta bifurcation or the aorta arch, ... | 11/25/2008 |
| 7424320 | Tissue localizing and marking device and method of using same A delivery apparatus for the percutaneous placement of a medical device at an area of interest in a tissue mass comprises an introducer comprising a cannula having an insertion tip, an expulsion opening near the insertion tip, and a medical device within the cannula... | 09/09/2008 |
| 7416533 | Marking biopsy sites A needle biopsy system for marking a sampling site is described. ... | 08/26/2008 |
| 7412277 | Multi-slice MR data acquisition in successive heartbeats with black blood contrast The invention includes a technique for efficient multi-slice image acquisition with black blood contrast in cardiac imaging such that MR data is acquired in each R-R interval of a cardiac cycle. The technique includes applying a non-selective inversion pulse, follow... | 08/12/2008 |
| 7412279 | Systems and methods for targeted magnetic resonance imaging of the vascular system This invention relates to MRI-based methods and systems useful for diagnosing and clinically assessing the presence, location, and size of cardiovascular disease-associated stationary targets, e.g., thrombi and atherosclerotic lesions, within the vascular system. Me... | 08/12/2008 |
| 7403810 | Time resolved contrast-enhanced MR projection imaging of the coronary arteries with intravenous contrast injection In a method and apparatus for contrast-enhanced magnetic resonance (MR) angiography of the right coronary artery of a patient, a bolus of MR contrast agent is selected to have a size that will cause the bolus, after injection into the patient, to wash out of right c... | 07/22/2008 |
| 7382124 | Apparatus for producing hyperpolarized noble gas, and nuclear magnetic resonance spectrometer and magnetic resonance imager which use hyperpolarized noble gases This apparatus for producing a hyperpolarized noble gas includes: a hyperpolarized noble gas generating cell in which a noble gas is subjected to an optical pumping in the presence of an alkali metal so as to generate a hyperpolarized noble gas; and a very fine capi... | 06/03/2008 |
| 7368909 | Downhole high resolution NMR spectroscopy with polarization enhancement An apparatus and method is discussed for characterizing a fluid sample downhole of aliphatic hydrocarbon compounds, aromatic hydrocarbon compound, or connate mud filtrates containing carbon-13 isotopes using an enhanced nuclear magnetic resonance (NMR) signal on a m... | 05/06/2008 |
| 7368910 | Dual gradient echo pulse sequence using interleaved spiral-out spiral-in k-space trajectories Measurements of functional, hemographic, and blood flow parameters use a multiple echo or spin echo gradient pulse sequence whereby an early echo is acquired near the beginning of the pulse sequence which avoids saturation effects and a later echo near the end of th... | 05/06/2008 |
| 7357917 | Diagnostic procedures using Xe spectroscopy characterstic chemical shift to detect pathology in vivo An in vivo non-invasive method for detecting and/or diagnosing a pathological condition using hyperpolarized 129Xe spectroscopy is disclosed. Generally stated, the method includes determining the magnitude of spectral peaks which represent particular chem... | 04/15/2008 |
| 7351402 | Polarizing agents for dynamic nuclear polarization We describe polarizing agents for use in enhancing NMR and MRI signals via dynamic nuclear polarization (DNP). The polarizing agents include two or more paramagnetic centers, preferably two paramagnetic centers. In a preferred embodiment, the polarizing agent compri... | 04/01/2008 |
| 7349130 | Automated scanning system and method A system and method for mass, automated scanning of objects, including dental study casts, housing parts, and other objects. The system and method are able to function with little or no human operator intervention, thereby facilitating high volume scanning and reduc... | 03/25/2008 |
| 7346384 | Method of magnetic resonance investigation of a sample using a nuclear spin polarised MR imaging agent The present invention provides a method of contrast enhanced magnetic resonance imaging of a sample, said method comprising: a) administering a hyperpolarised MR contrast agent comprising non-zero nuclear spin nuclei into said sample for fluid dynamic investigations... | 03/18/2008 |
| 7343193 | Background suppression method for time-resolved magnetic resonance angiography A 3D projection reconstruction pulse sequence is employed during a CEMRA dynamic study to acquire a time course series of k-space data sets. Signals from non-vascular voxels are suppressed by reconstructing a corresponding series of low resolution images using the c... | 03/11/2008 |
| 7336189 | Human locator system and method A human locator system and method conducts long-range locating with components or steps that are not readily visible on the person of the lost human, and that is fully independent of external communications and power systems. The human subject is provided with a bea... | 02/26/2008 |
