Matches 51 - 100 out of 329 < 1 2 3 4 5 6 7 >
Match Document Document Title
7233687 System and method for identifying optimized blood signal in medical images to eliminate flow artifacts  
In a sequence of medical image data showing tumors and blood vessels, a plasma signal is optimized to avoid flow artifacts by receiving a user input of a blood region and using the user input to...
7221973 Magnetic resonance tomography method and apparatus with motion correction  
In a magnetic resonance tomography apparatus and method with motion correction in an angiography examination with magnetic resonance-monitored vessel intervention, a contrast agent-supported...
7206629 Method for implementing a dynamic magnetic resonance measurement with the application of a contrast agent  
In a method for implementing a dynamic magnetic resonance measurement with contrast agent administration, at least one imaging magnetic resonance measurement of a subject region is implemented...
7181263 Injection system for use in a medical imaging examination  
An injection system for medical examinations to control the manual injection of a substance into a patient with a manually operated injector that has an arrangement to detect the fill state of a...
7172624 Medical device with magnetic resonance visibility enhancing structure  
A medical device that inhibits distortion of medical resonance images taken of the device. In particular, various structures are utilized to allow visibility proximate, and inside of, a tubular...
7174200 Optimized high-speed magnetic resonance imaging method and system using hyperpolarized noble gases  
A system and method for using hyperpolarized noble gases together with an appropriately designed and optimized magnetic resonance imaging pulse sequence to rapidly acquire static or dynamic...
7167740 Measuring method in magnetic resonance imaging device and magnetic resonance imaging device  
In a measuring space of the object ( 1 ), an essential measurement region ( 41, 61, 71, 81, 111, 131 ) having a center region of the measuring space and a plurality of peripheral measurement...
7110806 Method for imaging an artery using a magnetic resonance contrast agent  
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...
7082326 Method of magnetic resonance imaging  
A method of magnetic resonance (MR) imaging of blood perfusion in vascularized organs of interest, e.g. the myocardium, the kidneys, the brain, the liver wherein a contrast agent composition...
7079886 Apparatus and method for programming a KVO phase and a first phase of an injection procedure as a flushing medium phase  
A fluid injection arrangement in the context of patient imaging systems, in which phases of contrast medium injection and flushing medium injection can be freely and selectably ordered as to make...
7072706 Equilibration method for high resolution imaging of lung compliance and distribution of functional residual capacity  
The present invention offers novel equilibration methods for very high resolution, three-dimensional imaging of imaging of lung compliance and distribution of functional residual capacity (FRC) in...
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...
7047060 Multiple preparatory excitations and readouts distributed over the cardiac cycle  
A magnetic resonance cardiac imaging method for imaging during a cardiac cycle interval includes monitoring an electrocardiographic signal ( 90 ) associated with the imaged heart for a first...
7047063 Tissue site markers for in vivo imaging  
The invention is directed biopsy site markers and methods of marking a biopsy site, so that the location of the biopsy cavity is readily visible by conventional imaging methods, particularly by...
7047061 Method of localizing the myocardium of the heart and method of determining perfusion parameters thereof  
The invention relates to a method of deriving the myocardial region from one or more MR images. Left and right ventricle contours ( 1, 2 ) are determined. The thickness or width (D) of the...
7035681 Colonography of 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...
7035682 Magnetic resonance imaging method with a decay time function of sub-sampled acquisition data  
The degree of sub-sampling in magnetic resonance imaging is such that the ensuing acquisition time for receiving (echo) series of magnetic resonance signals due to an individual RF excitation is...
7027854 Magnetic resonance imaging utilizing a microcoil  
An interventional magnetic resonance method and apparatus utilizing a microcoil which enable localization of an interventional instrument by detecting magnetic resonance signals from the...
7006860 Magnetic resonance imaging coil having vest support structure  
The vest provides a simple and intuitive coil support assuring proper alignment of the coils with the patient and providing support for coil elements encircling the opposed arms. A coil for...
6994841 Relating to magnetic resonance imaging  
The invention shows a method for obtaining temporally spaced images of tissues, including blood vessels, to reveal blood flow abnormalities within those tissues and vessels.
6975896 Fiducial markers for MRI  
Fiducials ( 50 ) are disposed in an imaging region ( 14 ) along with a subject. The fiducials are mounted either to the subject itself, a surgical tool ( 52 ), an imaging probe or receive coil ( 80...
6963769 Method for enhancing contrast produced by MRI  
A method for obtaining an image by MRI, comprising: administering at least one contrast agent to a subject in amounts effective to perform CEDST MRI analysis; and performing CEDST MRI analysis to...
6961607 Method for assessing myocardial angiogenesis  
Polymeric contrast agents are used to monitor myocardial neovascularization. The agent is injected and images of the myocardium are obtained at various time intervals after injection. Localized...
6947787 System and methods for imaging within a body lumen  
Systems, methods and apparatus for acquiring an image from within a body lumen are provided. Systems embodying features of the invention include an intracorporeal imaging component for acquiring...
6920346 Pre-operative device for localizing marked tissues and process using such a device  
A pre-operative device includes at least one elongated probe ( 1 ) integrating at least one element for detecting radioactive radiation ( 3 ) emitted by tissues ( 4 ) marked by radioactive isotopes...
6915151 Quantitative pulmonary imaging  
The present invention comprises imaging and quantitative measurement of lung ventilation, particularly in a human lung. Methods for quantitative imaging of lung ventilation, and the further...
6904306 Method and apparatus for evaluation of contrast agent uptake based on derived parametric images  
A magnetic resonance imaging (MRI) apparatus ( 10 ) acquires a plurality of parametric images ( 60 ) with at least one varying imaging parameter. A parametric map ( 62 ) is constructed from the...
6904309 Microdialysis probes and methods of use  
The subject invention pertains to novel microdialysis probes having highly advantageous structural features, particularly for clinical applications. A microdialysis probe of the subject invention...
6901281 Method of magnetic resonance imaging  
The invention provides a method of magnetic resonance imaging of regional blood oxygenation which comprises administering into the vasculature of a vascularized human or non-human animal subject a...
6901282 Scoutless whole-body imaging with fast positioning  
A method and apparatus are provided for forming a magnetic resonance angiographic image of a human body. A plurality of spatially non-selective radio-frequency pulses and a plurality of different...
6899721 Instrument for performing surgical cholangiography  
An instrument for performing surgical cholangiography during either conventional colecistectomy or video-laparoscopic cholecistectomy included a tube slidably mounted into another having a rotative...
6898453 Method and apparatus for calculating blood flow parameters  
A method for determining tissue type includes quantitatively determining a tissue blood flow (TBF) by deconvoluting Q(t) and C a (t), where Q(t) represents a curve of specific mass of contrast, and...
6889072 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...
6862470 Cavity-filling biopsy site markers  
The invention provides materials, devices and methods for marking biopsy sites for a limited time. The biopsy-marking materials are ultrasound-detectable bio-resorbable powders, with powder...
6845262 Low-field MRI  
A method of imaging using magnetic resonance includes administering hyperpolarized noble gas to a subject in a region to be imaged, applying a magnetic field of a magnitude between about 0.0001...
6842638 Angiography method and apparatus  
A two-dimensional slice formed of pixels ( 376 ) is extracted from the angiographic image ( 76 ) after enhancing the vessel edges by second order spatial differentiation ( 78 ). Imaged vascular...
6818202 Enhancement of NMR and MRI in the presence of hyperpolarized noble gases  
The present invention relates generally to nuclear magnetic resonance (NMR) techniques for both spectroscopy and imaging. More particularly, the present invention relates to methods in which...
6809517 Magnetic resonance imaging of prostate brachytherapy seeds  
Two magnetic resonance images are acquired of seeds used in brachytherapy of the prostate with different pulse sequences. Phase images and magnitude images are reconstructed and a phase difference...
6807439 System and method for detecting dislodgement of an implantable medical device  
An improved system and method for detecting dislodgement of an implantable medical device (IMD) such as a catheter or lead is disclosed. The system includes means for generating multiple,...
6804546 Multiple contrast echo-planar imaging for contrast-enhanced imaging  
A dose of a contrast agent ( 44 ) is administered to the patient ( 42 ). A magnetic resonance is excited by an RF pulse ( 200 ) in a region of interest of the patient ( 42 ). An echo-planar imaging...
6775568 Exchange-based NMR imaging and spectroscopy of hyperpolarized xenon-129  
A method and an apparatus for using hyperpolarized xenon-129 and magnetic resonance imaging or spectroscopy as a probe to non-invasively and non-destructively characterize important properties of...
6772000 Magnetic resonance imaging devices with a contrast medium for improved imaging  
Described herein is a medical device, such as a catheter or guidewire, which comprises an elongate body, a MRI imaging sensor and a contrast medium contained within the medical device, the contrast...
6760611 Magnetic resonance imaging method and device therefor  
A plurality of time-series NMR signal groups are obtained before and after administration of a contrast agent, on an individual image basis, for the same region of the object. One of the obtained...
6754521 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...
6749844 Magnetic fluids  
A magnetic fluid is provided comprising a block copolymer stabilizer, magnetic particles and a fluid polysiloxane medium. The stabilizer comprises an anchor block which chelates magnetic metal...
6745066 Measurements with CT perfusion  
A CT scanner ( 10 ) for obtaining a medical diagnostic image of a subject includes a stationary gantry ( 12 ), and a rotating gantry ( 14 ). The detected radiation is reconstructed and divided into...
6741880 Method and apparatus for efficient stenosis identification and assessment using MR imaging  
A method and apparatus is disclosed in which a two-tiered approach is taken to first grade a patient to identify the presence of any suspected stenosis, and then a second step is used to acquire...
6723052 Echogenic medical device  
Echogenic medical devices, methods of fabrication and methods of use are disclosed. The device can be adapted to be inserted into a patient. The echogenic construction can be incorporated into the...
6711433 Method for providing a virtual contrast agent for augmented angioscopy  
A method for providing a virtual contrast agent for blood vessels in a body portion for angioscopy comprising deriving data from a 3D model using, for example, magnetic resonance imaging,...
6704592 Communication systems for use with magnetic resonance imaging systems  
A communication system for use in an MRI procedure includes a first communication unit positioned within a shielded housing on an interior side of the isolation barrier. The first communication...
Matches 51 - 100 out of 329 < 1 2 3 4 5 6 7 >