Entries |
Document | Title | Date |
20080214930 | METHOD FOR IMPROVING MAGNETIC RESONANCE IMAGING OF THE BREAST - The present invention provides a fat saturation device to be used in conjunction with a magnetice resonance imaging (MRI) breast coil, which provides padding for the comfort of the patient being imaged while eliminating the skin-air interface, thereby reducing the level of artefacts in the image. The device comprises a coil surface pad that contacts the surface of the coil, the pad having apertures therein through which the patients breasts extend when the patient is positioned on the coil for imaging. Aperture sleeves that are removable or retractable extend from the bottom surface of the coil surface into the apertures of the breast coil. The device comprises a fat saturation material. | 09-04-2008 |
20080221433 | Single coil parallel imaging - An imaging apparatus for an object in change includes an MRI system having a computer, a first channel which produces images of the object in change using alternate lines of k-space applied along each of the two phase encoding directions. The computer combines the individual images into a composite 3D image of the object. The MRI system acquires alternate lines of temporally resolved data along each of the phase encoding directions, such that at any one time point at least 25% of full data are acquired. A method for imaging an object in change includes the steps of producing an individual image of the object in change with a first channel of an MRI system using alternate lines of k-space applied for each phase encoding direction. There is the step of producing an individual image of the object in change with at least a second channel of the MRI system independent of the first channel by acquiring alternate lines of temporally resolved data using alternate lines of k-space. There is the step of combining the individual images into a composite 3D image of the object with a computer of the MRI system. | 09-11-2008 |
20080275332 | Head Coil and Neurovascular Array for Parallel Imaging Capable Magnetic Resonance Systems - A head coil for use with a parallel-imaging compatible MR system is disclosed, as is a method of making, and a neurovascular array (NVA) equipped with, same. The head coil includes conductive rings and rods configured to produce a plurality of electrically-adjacent primary resonant substructures about a birdcage-like structure, with each such primary resonant substructure including two rods neighboring each other and the short segment of each of the first and second rings interconnecting them. The primary resonant substructures are isolated from each other via a preamplifier decoupling scheme and an offset tuning scheme thereby enabling each primary resonant substructure (i) to receive an MR signal from tissue within its field of view and (ii) to be operatively couplable to one processing channel of the MR system for conveyance of the MR signal received thereby (iii) while being simultaneously decoupled from the other primary resonant substructures. | 11-06-2008 |
20080275333 | LOCAL MRI BREAST COIL AND METHOD OF USE - A local breast coil is designed to be tightly coupled to the natural shape of the pendant breast to provide high SNR for diagnostic MR imaging applications, while still providing access for interventional procedures through openings in the coil. In accordance with one configuration, the coil has a symmetrical design, such that the coil can be rotated about the breast to position an opening in the coil proximate to a desired portion of the breast without incurring registration or other alignment or artifact errors due to inhomogeneous B1 excitation. Furthermore, the coil is designed to facilitate medial and lateral imaging of the breast. The coil is combined with a patient support system that facilitates rotation of the coil and interchangeability of the coil to match the configuration of the coil to the position of the breast being imaged. | 11-06-2008 |
20080287775 | ARRANGEMENT FOR AFFIXING A MAGNETIC RESONANCE RF COIL TO A PATIENT - In an arrangement to affix RF coils (in particular local coils) on a patient in examinations with a magnetic resonance apparatus, using a horizontal board to accommodate the patient for a magnetic resonance examination to be implemented; with the RF coil that has coil electronics; a fastening strap is fashioned to affix the coil on the patient and the fastening strap has an connection cable integrated therewith. The coil electronics are supplied with energy via the integrated connection cable. | 11-20-2008 |
20080306377 | OPEN ARCHITECTURE IMAGING APPARATUS AND COIL SYSTEM FOR MAGNETIC RESONANCE IMAGING - Apparatus and method for using radio frequency coil systems for magnetic resonance imaging within an open architecture apparatus is provided. The MRI coil system includes a support structure with an open architecture in which secondary support structures, compression systems and plates containing RF coil systems may be introduced. These structures and RF coils can be moved relative to the patient, or removed entirely from the system. In one embodiment the system consists of a tabletop coil system, while another embodiment consists of a dedicated stretcher design. | 12-11-2008 |
20090012388 | INTERVENTIONAL DEVICE - An interventional device includes a base having an upper surface, a cup-shaped frame, a probe positioner, and a radio frequency coil. The cup-shaped frame is mounted to the base and configured to receive a body part. The probe positioner is mounted to at least one of the base and the cup-shaped frame, and is capable of rotating about a longitudinal axis which is perpendicular to the upper surface of the base. The radio frequency coil is mounted to the cup-shaped frame and is configured to rotate about the longitudinal axis. | 01-08-2009 |
20090012389 | ARRANGEMENT AND SUPPORT DEVICE FOR ATTACHING LOCAL COILS IN A MAGNETIC RESONANCE APPARATUS - An arrangement and a support device for attaching local coils to a patient for a magnetic resonance examination includes at least one local coil that is designed to acquire magnetic resonance signals and a support device. The support device is designed to accommodate the at least one local coil and to attach the at least one local coil on the patient. The support device is designed as a gas-filled cushion that changes its shape dependent on the gas pressure therein. The gas-filled cushion has a device for changing the gas pressure, such when a gas pressure change occurs the local antenna is pressed on the patient due to the resulting change in shape of the cushion. | 01-08-2009 |
20090030305 | MR Coil With Fiber Optical Connection - An MRI coil system ( | 01-29-2009 |
20090048508 | Rf coil assembly for use in magnetic resonance imaging - An RF coil assembly for use with magnetic resonance imaging (MRI) apparatus is described. The RF coil assembly comprises one or more coil elements capable of receiving electromagnetic radiation and is capable of being directly attached to a stereotactic base ring. The RF coil assembly may comprise a localiser box having fiducial markers. A corresponding attachment apparatus is also described for optimising the attachment position of a stereotactic base ring to a subject's head. The attachment apparatus comprises one or more fixing elements that allow the attachment apparatus to be releasably attached to a stereotactic base ring. In one embodiment, the internal dimensions of the attachment apparatus are selected to be substantially the same as the internal dimensions of an RF coil assembly. Corresponding methods are also described. | 02-19-2009 |
20090054759 | Inherently Decoupled Solenoid Pair Elements - The present invention relates to an element configuration within an RF coil for use for MRI. The invention provides for an inherently electromagnetically decoupled solenoid element pair for receiving radio frequency magnetic resonance signals within a vertical field MRI system. The elements of the solenoid element pair described herein are typically positioned in a coplanar, side-by-side position. The decoupling of the solenoid pair can be accomplished through numerous methods including but not limited to an overlapping between the elements of the solenoid pair, use of a capacitor shared between the elements of the solenoid pair, or the use of overlapped inductors between the elements of the solenoid pair. | 02-26-2009 |
20090076377 | SIMPLE DECOUPLING OF A MULTI-ELEMENT RF COIL, ENABLING ALSO DETUNING AND MATCHING FUNCTIONALITY | 03-19-2009 |
20090082663 | HORIZONTAL FIELD MRI SHOULDER COIL - The present invention relates to a design of a radiofrequency (RF) receive coil (also commonly referred to as an imaging coil) for magnetic resonance imaging (MRI) in a horizontal field MRI system of a patient's shoulder region. | 03-26-2009 |
20090082664 | Endorectal Coil for Magnetic Resonance Tomograph - An endoscopic RF coil arrangement for magnetic resonance imagers is provided which include a handle with a shaft and a coil with a balloon arranged distally. An inner cover is further provided which is pulled over the shaft and over the coil with balloon. An outer cover is provided over the inner cover. The outer cover comprises a formed part for a balloon on the distal side over the coil in which a liquid and/or a gas can be introduced. | 03-26-2009 |
20090088627 | MRI-COMPATIBLE HEAD FIXATION FRAME WITH COOPERATING HEAD COIL APPARATUS - A head support assembly includes a base configured to be removably secured to an MRI scanner gantry, a head support frame attached to the base, and a longitudinally extending head coil apparatus adjustably secured to the head support frame. The head support frame includes a pair of elongated arms that extend outwardly in adjacent, spaced-apart, substantially co-planar relationship to form an area for receiving the head of a patient. Each arm includes a respective free end, and a head engagement rod is adjustably associated with each respective arm free end. The head engagement rods are configured to engage a patients head within the head support frame. One or more additional head engagement rods may extend outwardly from the head support frame between the pair of arms. | 04-02-2009 |
20090099444 | Microstrip Coil Designs for MRI Devices - A microstrip-based RF coil for use in an MRI apparatus constructed to perform human head and extremity imaging according to one embodiment of the present invention includes a coil former defined by an inner core member and a shield support that surrounds the inner core member. An outer surface of the shield support supports a conductive segmented shield and a plurality of conductive strip lines are disposed on an inner surface of the inner core module and extend parallel to a longitudinal axis thereof. According to one aspect of the present invention, all of the strip lines are not homogenous so as to introduce asymmetry into the coil design. | 04-16-2009 |
20090105583 | Method for determining attenuation values for pet data of a patient - A method is disclosed for determining attenuation values for PET data of a patient. In at least one embodiment, the method includes detecting at least one accessory of a magnetic resonance imaging scanner and detecting the position and/or alignment of the accessory by way of an imaging measuring method; comparing the detected accessory with data from a database; and assigning an attenuation map, which is contained in the database, to attenuation values of the detected accessory and adapting the attenuation map to the detected position and/or alignment of the accessory. | 04-23-2009 |
20090118611 | COILS FOR MAGNETIC RESONANCE SPECTROSCOPY AND IMAGING OF HUMAN BREAST - System(s) and method(s) for magnetic resonance imaging and spectroscopy, and magnetic resonance spectroscopic imaging (MRSI) are provided. A unified heteronuclear coil system includes a volume coil tuned to detect a first nuclei and a butterfly coil tuned to detect a second nuclei for simultaneous detection of both the first nuclei and the second nuclei signals from human breast tissue and perform MRIS. First nuclei and second nuclei each include | 05-07-2009 |
20090124889 | Vertical Field MRI Breast Coil - The present invention relates to a design of a radiofrequency (RF) receive coil (also commonly referred to as an imaging coil) for magnetic resonance imaging (MRI) in a vertical field MRI system of a patient's breast region. The design described herein generally includes a housing that includes two coil cups. The coil housing will generally encase the coil elements. In general, the breast coil of certain embodiments of the invention will include loop elements surrounding each side of each of the coil cups, a saddle element at the bottom of each cup, and an element that spans the width of the coil, wrapping at least partially up both sides of the coil. It is foreseen that further embodiments of the breast coil design may include additional elements. | 05-14-2009 |
20090149738 | Chest Wall Coil Array for Breast Imaging - A RF coil array is provided for imaging a chest wall of a patient including a breast. The RF coil array includes a rigid cup-shaped element and a flexible, substantially flat portion. The rigid cup-shaped element is sized and dimensioned to receive a small breast, such as a post mastectomy breast or a male breast, and the flexible portion is configured to be conformed to the patient adjacent the breast to allow for imaging of the breast, and adjacent areas while facing the chest wall. | 06-11-2009 |
20090171188 | FLEXIBLE POLYMER ELECTRODE FOR MRI-GUIDED POSITIONING AND RADIO FREQUENCY ABLATION - An electrode for use on a medical device is disclosed. The electrode may have a main body of electrically conductive material extending along an axis and may have a proximal end and a distal end. The electrode may also include a magnetic resonance imaging (MRI) tracking coil disposed in the body. The MRI tracking coil may comprise electrically insulated wire. A catheter including an electrode, as well as a method for determining the location of an electrode, are also disclosed. | 07-02-2009 |
20090171189 | MAGNETIC RESONANCE COIL FIXED IN PLACE BY AIR PRESSURE - An air pressure fixed coil for magnetic resonance imaging has a surface on which an air pressure fixing device is arranged. The air pressure fixing device is in communication with a control switch, that is operable to actuate the air pressure fixing device to generate a negative pressure or to restore a normal air pressure, so that the air pressure fixing device is suctioned and fixed onto an object, or is released from the object. Since the coil is fixed in place by using air pressure, the coil can be fixed onto a patient bed without arranging any fixing structure on the patient bed, and therefore the coil can be positioned and fixed at any place on the patient bed for carrying out a scanning operation according to needs. At the same time, since there is no need to pre-arrange any fixing structure on the patient bed, such as slots, holes etc., the structural strength of the patient bed will not be affected, and the appearance of the patient bed can be kept simple, clean and neat. | 07-02-2009 |
20090209848 | GEL MATERIAL FOR USE IN MRI - In MR imaging of a body part of a patient in an intra-operative procedure, the body part is supported using gel pads where the gel material is arranged such that the presence of the gel material does not generate an image in the analysis of the RF signal from the location so that the pad is invisible in the MR image. This can be obtained by using a water based gel material and providing an additive such as manganese chloride to reduce the relaxation time of the water molecules to a value which is sufficiently short that the molecules relax before the acquisition of the signals by the RF receive coil. This can be achieved by using a non-water based gel or a heavy water based gel. | 08-20-2009 |
20090221906 | WRIST COIL FOR MAGNETIC RESONANCE IMAGING - A wrist coil for magnetic resonance imaging has a tubular coil formed by a number of coil splicing units spliced together in succession, and an annular coil unit that is wound around the surface of the tubular coil. Since the annular coil unit is wound around the surface of the tubular coil, and the current direction in the annular coil unit is perpendicular to the current direction in each of the coil splicing units, when some of the coil splicing units in the tubular coil do not acquire signals due to the fact that their magnetic field direction is parallel to that of the main magnetic field direction, the annular coil unit will carry out signal acquisition. Furthermore, since the magnetic flux of the annular coil unit is relatively large, this ensures a relatively high signal-to-noise ratio in the acquired signals no matter whatever layout position is adopted for the wrist coil, thus reducing equipment costs and eliminating restrictions for clinical applications in the prior art. | 09-03-2009 |
20090234222 | System for magnetic resonance imaging assisted surgery - A system and method for magnetic resonance imaging assisted surgery. The system includes an antenna support assembly and an antenna that are used to acquire real time images of the surgical site that may be used by a surgeon to more accurately perform the surgical procedure. The method comprises acquiring real time images of the surgical site and feeding back the images to a surgeon performing the surgical procedure. | 09-17-2009 |
20090264735 | Automated Patient Localization in a Medical Imaging System - Described herein is a process for patient localization within a medical imaging system, having a first and second signal means for identifying patient position. The patient is manually positioned on a patient table at an initial position outside the system. A first signal means is manually positioned adjacent an area of interest on the patient in the initial position and the first signal means communicates that initial patient position to a detection means. The second signal means communicates a desired final patient position location to the detection means. The detection means either essentially continuously monitors and compares said initial and subsequent positions to the final position, or calculates the distance between the initial position and the final position and causes the patient to move from the initial position to the final position when the positions are not essentially the same. | 10-22-2009 |
20090299173 | METHOD AND ARRANGEMENT RELATING TO TESTING OBJECTS - The invention relates to an arrangement ( | 12-03-2009 |
20100004529 | PROCESS AND APPARATUS FOR DRAPING BREAST MRI IMAGING COILS - A draping provides at least partial and preferably complete coverage of MRI coils, an MRI table and an MRI support system thereby protecting a patient and the equipment. Draping notch fold down flaps may be pushed into shaped apertures of an MRI apparatus by the patient's breast due to the design of the draping. This offers a barrier between the patient and the equipment pad providing the patient with warmth, comfort and protection from infectious diseases such as Methicillin-resistant staphylococcus aureus (MRSA). The draping reduces the clean up and improves the procedure turnaround time for the technologist. | 01-07-2010 |
20100016708 | MRI RF ENCODING USING MULTIPLE TRANSMIT COILS - A common method of RF encoding assumes that the Bi field generated by the RF coils is linear, which is likely not the case in many situations. It is therefore desirable to have a method of operating an MR system to reconstruct an image of a subject, wherein the method is capable of also handling arbitrary Bi fields used for RF encoding. Accordingly, such an MR system employing one or more RF coils is disclosed herein. The method comprises obtaining transmit sensitivities and weighting factors for individual RF coils. Each RF coil is activated based on its respective weighting factor to apply RF excitation to a subject under examination in the MR system. MR signals—such as free induction decays (FID) signals or echo signals—generated from the subject in response to the RF excitation are received and processed based on the transmit sensitivities to generate an MR image or spectrum representative of the subject. | 01-21-2010 |
20100099978 | Breast coil arrangement for magnetic resonance applications - A breast coil arrangement for magnetic resonance applications has a placement web that is designed to allow an examination subject to lie with her sternum on the placement web. Pot-like breast receptacles for each breast of the examination subject are respectively arranged on opposite sides of the placement web. The breast receptacles have limiting elements whose spacing from one another can be adjusted. Multiple array coils are respectively arranged in the limiting elements and are stationary relative to the limiting elements. Each breast receptacle is surrounded by a volume coil that is stationary relative to the placement web. The volume coils are arranged centrally and orthogonally relative to the array coils and surround the array coils. The volume coils are decoupled from the array coils. A spectroscopy phantom can be arranged in proximity to the placement web. The breast receptacles as a structural unit can be detached individually or together from the placement web, and volume-reducing inserts can be inserted into the breast receptacles. Lateral supplementary placement elements carrying axilla coils can be provided and may be separately deactivated depending on an input option of a user. | 04-22-2010 |
20100106008 | MAGNETIC RESONANCE IMAGING SYSTEM AND METHOD - It is an object of the present invention to provide a MRI technique, in which the influence of physiological factors such as respiration and cardiac pulsation on MRI results is reduced or removed. The object of the present invention is achieved by a magnetic resonance imaging system ( | 04-29-2010 |
20100121180 | HEAD COIL FOR A MAGNETIC RESONANCE DEVICE - A head coil for a magnetic resonance apparatus has a supporting body that carries a number of antenna elements. The supporting body has an end section that is shaped as a spherical cap. A butterfly antenna is mounted at the end section, and is annularly surrounded by at least one group antenna that overlaps the butterfly antenna. | 05-13-2010 |
20100137704 | MEDICAL MATS WITH ELECTRICAL PATHS AND METHODS FOR USING THE SAME - The disclosure describes medical mats that provide electrical paths with connectors that connect to various electronic medical or surgical tools. The medical mats can reduce the lengths of cables and define routes that preventing cross-over, looping and/or bunching of loose lengths of long cables. | 06-03-2010 |
20100222667 | COMPRESSION DEVICE FOR ENHANCING NORMAL/ABNORMAL TISSUE CONTRAST IN MRI INCLUDING DEVICES AND METHODS RELATED THERETO - Featured are a device for compression of target tissue while magnetic resonance imaging the target tissue and methods and systems related thereto. The method includes disposing target tissue between the fixed surface and the moveable member of a compression device and compressing the target tissue between the fixed surface and the moveable member. The method also includes acquiring one or more, more specifically a plurality, of sequences of image data of the compressed target tissue using an MRI imaging technique (MRI). In embodiments, the MRI technique is a SENC MRI technique, where tissue encoding is done prior to compressing the tissue and acquiring includes adding a gradient moment in the slice-selection direction to cause demodulation with a specific frequency, hi further embodiments, the sequences of image data are acquired during a single compression and prior to recovery of magnetization. | 09-02-2010 |
20100280360 | TWO-PART LOCAL SHOULDER COIL, AND MAGNETIC RESONANCE TOMOGRAPHY APPARATUS AND METHOD EMPLOYING SAME - Improved patient comfort is provided by a local coil arrangement designed to support the production of an MRT image of a shoulder, wherein the housing of the local coil arrangement is composed of two separable parts. | 11-04-2010 |
20100280361 | APPARATUS AND METHOD FOR CRYOGENICALLY COOLING A COIL ON A MAGNETIC RESONANCE IMAGING SYSTEM - A magnetic resonance imaging system includes a primary magnet and a secondary magnet operable to produce magnetic fields within a sample being imaged. The MRI system further includes at least one RF coil that is operable to receive electromagnetic frequencies from the sample. The RF coil is formed from tubing that serves as a cooling conduit through which flows a cooling fluid provided by a cooling source. The cooling fluid cools the RF coils to improve imaging of the sample. | 11-04-2010 |
20100286505 | Irradiating Coil And Magnetic Resonance Imaging Apparatus Using The Same - An irradiating coil includes a first ring conductor located on a plane, a second ring conductor having a smaller diameter than a diameter of the first ring conductor and located substantially on the plane of the first ring conductor, a plurality of first line conductors connected the first ring conductor and to the second ring conductor, and an arrangement for making uniform a radio-frequency-pulse that is transmitted by the irradiating coil. The pulse uniforming arrangement includes a diverger which diverges a current flow of the first line conductors. | 11-11-2010 |
20110040174 | HEAD COIL FOR A MAGNETIC RESONANCE TOMOGRAPHY APPARATUS WITH INTERCHANGEABLE OPERATING ELEMENTS - An assembly for mounting and unmounting a surface coil of a magnetic resonance tomography apparatus includes an upper part, a lower part, a locking element to fix the upper part and the lower part to one another, and contact elements at the upper part and at the lower part. The contact elements at the upper part can be brought into an electrically conductive connection with contact elements at the lower part and the upper part and the lower part can be fixed to one another by a movement of the locking element. | 02-17-2011 |
20110046475 | TECHNIQUES FOR CORRECTING TEMPERATURE MEASUREMENT IN MAGNETIC RESONANCE THERMOMETRY - Techniques for correcting temperature measurement in MR thermometry are disclosed. In particular, phase shifts that arise from factors other than temperature changes are detected, facilitating correction of temperature measurements. | 02-24-2011 |
20110152674 | MRT antenna - The disclosure relates to a device and a method for detecting electromagnetic fields, in particular fields occurring in imaging magnetic resonance tomography. | 06-23-2011 |
20110172518 | Method for Non-Invasive Measurement of Cardiac Output - A comparatively light and compact permanent magnet arrangement for an MRI apparatus has a pair of opposed permanent magnet arrays with a shimming system to adjust the uniformity and strength of a magnetic field in a central chamber of the apparatus. The MRI apparatus is used to examine the extremities of a patient to determine cardiovascular characteristics from an analysis of the blood flow through selected arteries in the extremity. The information collected can be used to calculate such characteristics as total cardiac output, blood flow, arterial wall thickness and elasticity and the presence of plaque. | 07-14-2011 |
20110257515 | MAGNETIC RESONANCE RF COIL ASSEMBLY FOR IMAGING OF THE CERVICAL REGION - A radio-frequency (RF) coil for obtaining magnetic resonance data for imaging the cervical region of a patient has a loop coil contained in a housing of an applicator assembly that is adapted for placement against the cervix of the patient, and a loopless antenna contained in a tandem applicator of the assembly, that is adapted for intracorporeal placement in the cervix of the patient. | 10-20-2011 |
20110257516 | MAGNETIC RESONANCE METHOD AND APPARATUS TO SEPARATE DEPICTION OF A TRACKED ITEM FROM SURROUNDING ANATOMY OF A PATIENT, USING A TRANSMIT ARRAY SYSTEM - In a method for detecting rotational orientation and position tracking of an inductively coupled RF (ICRF) coil using a transmit array system, a conventional body birdcage coil is used, but the quadrature hybrid is eliminated to use the two excitation-channels separately. The transmit array system provides RF excitations such that the body birdcage coil creates linearly polarized and circulating RF pulses instead of a conventional rotational forward polarized excitation. Inductively coupled RF (ICRF) coils can be constructed on catheters for detecting rotational orientation and tracking purposes. The modifications on anatomy and ICRF coil images are different due to the RF excitation scheme such that the ICRF coil can be separated from the anatomy in real-time. After separating the ICRF coil from the anatomy, a color-coded image can be reconstructed, for example. | 10-20-2011 |
20110306871 | Multiple-People MRI Scanner That Can Simultaneously Scan More Than One Person - A system and method perform magnetic resonance imaging (“MRI”) on more than one people simultaneously with one MRI scanner. The system may include a superconducting or non-superconducting magnet, a set of three dimensions of magnetic field gradients, RF coils, and magnetic field shimming coil set that can accommodate more than one people within one scanner. The system and method may be used for performing MRI on more than one interacting or non-interacting people for anatomic, functional, metabolic, and/or molecular imaging and studies. | 12-15-2011 |
20110306872 | COMBINED FIELD LOCATION AND MRI TRACKING - A composite tracking system for a medical device comprises a field location tracking system including at least one field location sensor structured to be coupled to a medical device, a magnetic resonance tracking system including at least one tracking coil structured to be coupled to a medical device, and a composite tracking processor operably coupled to the field location tracking system and the magnetic resonance tracking system. The composite tracking processor is operable to receive and process field location parameters from the field location tracking system and positional coordinates from the magnetic resonance tracking system to register a field location coordinate system to a magnetic resonance coordinate system. | 12-15-2011 |
20120004532 | IRRADIATING COIL AND MAGNETIC RESONANCE IMAGING APPARATUS USING THE SAME - An irradiating coil includes a first ring conductor located on a plane, a second ring conductor having a smaller diameter than a diameter of the first ring conductor and located substantially on the plane of the first ring conductor, a plurality of first line conductors connected the first ring conductor and to the second ring conductor, and an arrangement for making uniform a radio-frequency-pulse that is transmitted by the irradiating coil. The pulse uniforming arrangement includes a diverger which diverges a current flow of the first line conductors. | 01-05-2012 |
20120071750 | METHOD FOR AFFIXING A MAGNETIC RESONANCE RF COIL TO A PATIENT - In a method to affix RF coils (in particular local coils) on a patient in examinations with a magnetic resonance apparatus, a horizontal board accommodates the patient for a magnetic resonance examination to be implemented, an RF coil that has coil electronics is affixed with a fastening strap on the patient, and the fastening strap has a connection cable integrated therewith. The coil electronics are supplied with energy via the integrated connection cable. | 03-22-2012 |
20120089011 | METHOD AND APPARATUS FOR SCANNING CONTROL AND DISPLAYING IMAGES IN A MAGNETIC RESONANCE SCANNING CHAMBER - A method and apparatus for scanning control and displaying an image in a magnetic resonance scanning chamber are disclosed. An apparatus includes a magnetic resonance imaging system, a scanning chamber computer, an operating chamber computer, and a communication connection device; the scanning chamber computer and the magnet are disposed in the scanning chamber together; the operating chamber computer is disposed in the operating chamber; the scanning chamber computer and the operating chamber computer are connected via the communication connection device. | 04-12-2012 |
20120123248 | 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 improves the infarct/blood contrast by decoupling their relaxation curves thereby nulling both the blood and the non-infarcted myocardium. This causes the infarct to be imaged bright and the blood and non-infarct to both be imaged dark. The slice-selective preparation occurs early enough in the cardiac cycle so that fresh blood can enter the imaged slice. | 05-17-2012 |
20120277575 | COIL SYSTEM AND METHOD FOR OBTAINING VOLUMETRIC PHYSIOLOGICAL MEASUREMENTS - A coil device is provided having a member adapted to extend around and conform to an outer surface of a subject and a conductor adapted to extend only once around a first portion of the subject. The coil device can be positioned about the subject in order to measure a volume of the subject. When placed about the subject in the presence of a relatively homogeneous magnetic field, the conductor can generate a signal indicative of a volume of the first portion of the subject. The coil device may also include two or more conductors separately generating signals indicating volumes of two or more corresponding portions of the subject. In some cases the coil device includes associated authorization data that can limit use of the coil device. Systems and methods incorporating the coil device are also provided. | 11-01-2012 |
20120283551 | COIL SYSTEM AND METHOD FOR OBTAINING VOLUMETRIC PHYSIOLOGICAL MEASUREMENTS - A coil device is provided having a member adapted to extend around and conform to an outer surface of a subject and a conductor adapted to extend only once around a first portion of the subject. The coil device can be positioned about the subject in order to measure a volume of the subject. When placed about the subject in the presence of a relatively homogeneous magnetic field, the conductor can generate a signal indicative of a volume of the first portion of the subject. The coil device may also include two or more conductors separately generating signals indicating volumes of two or more corresponding portions of the subject. In some cases the coil device includes associated authorization data that can limit use of the coil device. Systems and methods incorporating the coil device are also provided. | 11-08-2012 |
20120323113 | LOCAL SHIM COIL WITHIN A LOCAL COIL FOR LOCAL B0 HOMOGENIZATION IN AN MRT EXAMINATION - A local coil for an imaging system, in particular an MRI scanner. The local coil is an MRI scanner local coil within which the head of a patient may be positioned, and that includes at least one shim coil. | 12-20-2012 |
20130023756 | ADAPTER FOR A DIRECT-CONNECTION HEAD COIL WITH ADJUSTABLE TILT ANGLE - An adapter for a local coil for a magnetic resonance tomography device is provided. The adapter is placeable on a patient support for the magnetic resonance tomography device. The adapter includes an adapter upper part that is removably connectable to the local coil. The adapter also includes an adapter lower part that is removably connectable to the patient support. The adapter also includes a tilt device, by which the adapter upper part is movable relative to the adapter lower part. | 01-24-2013 |
20130123612 | MRT SURFACE COIL ARRAY - A surface coil for an imaging system includes a spine coil array that includes a plurality of coil elements. The surface coil also includes a cardiac coil array including a plurality of coil elements. The spine coil array and the cardiac coil array are both arranged in the same housing. | 05-16-2013 |
20130131498 | ADJUSTABLE MRI HEAD COIL APPARATUS AND MRI SYSTEM - An adjustable MRI head coil apparatus includes a plurality of plates. Each of the plurality of plates includes a plurality of RF receive elements arranged in a fixed orientation. The adjustable MRI head coil apparatus also includes a support coupled to at least one of the plurality of plates. The support includes a ball head mechanism configured to allow tilting of the adjustable MRI head coil apparatus in a least one direction. | 05-23-2013 |
20130137970 | SHOULDER COIL HAVING A FLEXIBLE TOP PART AND/OR A MOUNTING-DEPENDENT ELEMENT SELECTION - A shoulder coil for a magnetic resonance imaging device includes a bottom part and one or more top part elements that may be moved relative to the bottom part. The one or more top elements each have at least one coil therein. | 05-30-2013 |
20130137971 | MULTIPLE-PERSON MRI SCANNER WITH TWIN HEAD COIL - A system and method perform magnetic resonance imaging (“MRI”) on more than one people simultaneously with one MRI scanner. The system may include a superconducting or non-superconducting magnet, a set of three dimensions of magnetic field gradients, RF coils, and magnetic field shimming coil set that can accommodate more than one people within one scanner. The system and method may be used for performing MRI on more than one interacting or non-interacting people for anatomic, functional, metabolic, and/or molecular imaging and studies. | 05-30-2013 |
20130165768 | Breast Coil for Magnetic Resonance Recordings of the Breast - A breast coil for a magnetic resonance tomography device for the production of magnetic resonance recordings of female breasts includes a coil housing having a breast recess to accommodate a breast and a number of coil elements. At least one of the coil elements forms an HF correction coil element and has a circuit arrangement to switch over the HF correction coil element between an HF correction mode of operation and another mode of operation. The HF correction coil element is constructed such that in the HF correction mode of operation, the HF correction coil element resonates passively with a B | 06-27-2013 |
20130184566 | Elastic Antenna System for a Magnetic Resonance Imaging System - An antenna system for a magnetic resonance imaging system includes a plurality of antenna elements. The antenna elements are arranged in, at, or on support elements. The support elements are constructed so as to be non-expandable and have a constant surface dimension. Adjacent support elements are connected to an expandable connecting element. The dimensions of the connecting element may be changed by the expansion. | 07-18-2013 |
20130190607 | LOCAL COIL AND MANUFACTURE OF MECHANICALLY PREFORMED, FLEXIBLE LOCAL COILS FOR MRI - A method for manufacturing a local coil for a magnetic resonance tomography device includes manufacturing the local coil with a flat cross-section. The method also includes deforming the local coil from the flat cross-section into a curved cross-section. | 07-25-2013 |
20130190608 | ORAL COIL FOR A MAGNETIC RESONANCE TOMOGRAPHY SYSTEM - An oral coil for a magnetic resonance tomography system for creation of magnetic resonance images of a jaw area of a patient includes a high-frequency antenna system with a number of high-frequency antennas and a shim system. The shim system includes a number of shim elements for homogenization of a static basic magnetic field of the magnetic resonance tomography system. | 07-25-2013 |
20130197352 | Holder for Double Loop Coil for MCP Images - A holder for a local coil for an imaging system such as a magnetic resonance tomography (MRT) hand coil holder is provided. The MRT hand coil holder has recesses in side parts of the holder. A hand of a patient may be positioned between the side parts. The recesses in the side parts of the holder are each configured to accommodate at least one local coil. | 08-01-2013 |
20130211241 | Local Coil System - A local coil system having two loop coils is used for recording, for example, small joints in magnetic resonance tomography. | 08-15-2013 |
20130225980 | Shoulder Local Coil System for a Magnetic Resonance Tomography System - A shoulder local coil system for a magnetic resonance tomography system for generating magnetic resonance images of a shoulder region of a person to be examined is provided. The shoulder local coil system includes a base plate, a fixed or removable cover plate over the base plate, and a flexible local coil arranged wholly or partially movably between the base plate and the cover plate. | 08-29-2013 |
20130267832 | MRI COMPATIBLE VASCULAR OCCLUSIVE DEVICES AND RELATED METHODS OF TREATMENT AND METHODS OF MONITORING IMPLANTED DEVICES - Implantable aneurysm-sac treatment devices include an implantable coil body configured and sized to reside in a sac of an aneurysm. The body has an inductance and capacitance. The capacitance is selected so that the coil resonates at a Larmor frequency of a predefined magnetic field strength. | 10-10-2013 |
20130274594 | Shim Coil Arrangement for an Extremity of a Patient - A shim coil arrangement for at least one extremity of a patient such as a forearm and/or a hand for use in a magnetic resonance device is provided. The shim coil arrangement is arranged surrounding a receptacle for the at least one extremity. At least two planar shim coils having a common coil plane that lies at right angles to a direction of a basic magnetic field of the magnetic resonance device in a usage state and/or to a longitudinal direction of the receptacle are arranged around a circumference of the receptacle. A plurality of coil planes succeeding one another in the direction of the basic magnetic field of the magnetic resonance device in the usage state and/or the longitudinal direction of the receptacle and at right angles to the direction of the basic magnetic field and/or the longitudinal direction are provided with at least two planar shim coils. | 10-17-2013 |
20140005525 | Local Coil for Magnetic Resonance Imaging System | 01-02-2014 |
20140039301 | MR Surface Coil with Integrated Automatic Patient Immobilization - A magnetic resonance tomography (MRT) local coil includes at least two parts that may be moved relative to one another. At least one part of the at least two parts has elements that, in a closed state of the MRT local coil, presses directly or via pressure elements on at least one closed volume area in another part of the at least two parts. The at least one closed volume area is displaced by this in the closed state of the local coil into a coil interior space inside the local coil until the closed volume area rests against a patient. | 02-06-2014 |
20140051982 | TWO-PART LOCAL SHOULDER COIL, AND MAGNETIC RESONANCE TOMOGRAPHY APPARATUS AND METHOD EMPLOYING SAME - Improved patient comfort is provided by a symmetric local coil arrangement designed to support the production of an MRT image of a shoulder, wherein the housing of the local coil arrangement is composed of two separable parts. The symmetric local shoulder coil arrangement is designed to be useable for either of a right or left shoulder of a human subject by rotating the local coil arrangement about a rotational axis that is parallel to an axis of symmetry of the local shoulder coil and perpendicular to anterior and posterior members of the shoulder coil. | 02-20-2014 |
20140058250 | Shoulder Coil and Transmitting Coil for Magnetic Resonance System - A shoulder coil for a magnetic resonance system includes a receiving part. The shoulder coil also includes a transmitting part used for coupling a radio-frequency magnetic field of a body coil of the magnetic resonance system. | 02-27-2014 |
20140073909 | MR Patient Couch with Integrated RF Devices - A patient couch for a magnetic resonance tomography system includes a radio frequency (RF) transmit system and/or an RF receive system provided in the patient couch for at least one local coil. A local coil may be connected to the RF transmit system and/or the RF receive system of the patient couch. | 03-13-2014 |
20140088409 | Receiving Coils for Magnetic Resonance Systems - A receiving coil for a magnetic resonance system includes an antenna unit and a locating unit. The locating unit is used for locating a subject to be examined and is positioned inside the antenna unit. The receiving coil for a magnetic resonance system may improve a patient's level of comfort, reduce the complexity of operation, and improve the coil's signal-to-noise ratio. | 03-27-2014 |
20140107470 | METHOD AND MAGNETIC RESONANCE APPARATUS TO DETERMINE AT LEAST ONE DATUM FROM AN IMPLANTED SILICONE IMPLANT - In a method and magnetic resonance apparatus to determine at least one datum of an implanted silicone implant, at least one magnetic resonance data set is acquired, with the acquired signals of the magnetic resonance data set originating at least in part from the silicone implant. At least one spectrum is calculated from the magnetic resonance data set, and the datum is determined in a processor from the spectrum. | 04-17-2014 |
20140121499 | PATIENT POSITIONING DEVICE FOR PRONE BREAST SIMULATION AND RADIATION THERAPY - A patient positioning device for use in simulation and treatment via radiation therapy of the ipsilateral breast of a patient while in the prone position. The patient positioning device has (A) an MRI coil support system comprising (a) at least one of (1) a first MRI coil support structure at the superior end of the device, and (2) a second MRI coil support structure at the inferior end of the device, wherein the first and/or second support structures are dimensioned and configured to receive and engage a first MRI coil at one or more positions and oriented in the vertical plane, and (b) an MRI support assembly comprising a housing dimensioned and configured to receive and engage a second MRI coil, wherein the MRI support assembly is configured to allow adjustment of the position of the housing relative to the one or more positions for receiving and engaging the first MRI coil, (B) an aperture through which the ipsilateral breast can hang into a radiation therapy treatment field, and (C) a provision to support the contralateral breast such that it is held out of the radiation therapy treatment field. Both the first and second MRI coils are positioned such that neither comes in physical contact with the ipsilateral breast. | 05-01-2014 |
20140213888 | System and Method for Multi-Roi MRI Imaging Using an RF Loop Coil - A system and method for producing an image using a radio frequency (RF) coil in a magnetic resonance imaging system (MRI). A static magnetic field (B | 07-31-2014 |
20140257086 | MRI COMPATIBLE INTRABODY STYLETS AND RELATED METHODS AND SYSTEMS - Intrabody MRI-compatible medical devices with a rigid stylet body with opposing distal and proximal ends with a wall enclosing at least one cavity extending therebetween. The stylet body has first and second laterally spaced apart and opposing external longitudinally extending recessed surfaces and at least one pair of transversely spaced apart apertures extending through the wall and at least one conductor having a length that extends through the cavity then exits the cavity to define at least one external loop extending between the distal end of the stylet body and the pair of transversely spaced apart apertures. First and second legs of each loop snugly abut a respective first and second recessed surface of the stylet body to thereby cooperate with the stylet body to define a substantially cylindrical shape. The at least one conductor with the at least one loop is configured to act as an MRI antenna. | 09-11-2014 |
20140275978 | NEEDLE PLACEMENT MANIPULATOR WITH ATTACHMENT FOR RF-COIL - A needle placement manipulator includes, a needle holder configured to hold a needle, a guide system configured to position the needle holder to a predetermined direction with respect to a subject of needle placement, an attachment including an attaching portion to which the guide system is attached and a setting portion on which an RF-coil is set. A base surface of the setting portion is configured to be disposed on the subject. | 09-18-2014 |
20140275979 | NEEDLE PLACEMENT MANIPULATOR WITH TWO ROTARY GUIDES - A needle placement manipulator includes, a pair of rotary guides arranged at a slanted angle with respect to each other, a needle holder which holds a needle along a needle holder axis, and a base body on which the guides are supported. The needle holder axis and each axis of the rotary guides cross at a single point located at or below the base body. The base body is configured to be attached to a patient or to an RF-coil. | 09-18-2014 |
20150011870 | PROTECTIVE COVERS FOR RF COILS AND RELATED RF COILS, ASSEMBLIES AND METHODS - Protective covers that are particularly suitable for flexible RF coils include self-sticking, releasably peelable layers of film having one sticky/tacky inner surface and one non-sticky/non-tacky smooth (outer) surface. | 01-08-2015 |
20150025362 | Local Transmission Coils and Transmission Coil Arrays for Spinal Column Imaging in an MRI Device - A spine coil for a magnetic resonance imaging device includes at least one transmission coil element configured for transmission. | 01-22-2015 |
20150112187 | MR Imaging with RF Coil Integrated into Patient Engaging Component - In MR imaging of a body part in the magnetic field of a magnet, an RF signal is applied in a transmit stage to the subject to be imaged such that the subject generates an MR signal in response to the magnetic field and the RF signal applied with the MR signal being acquired in a receive stage using an RF coil where the RF coil is an integral element defined within a supporting element such as a pillow or U-shaped head support carrying the body part or within an article worn or carried by the body part such as a cast, brace, brassiere or vest. | 04-23-2015 |
20150148663 | OSCILLATION APPLICATOR FOR MR RHEOLOGY - The invention relates to the field of magnetic resonance (MR) imaging. It concerns an oscillation applicator for MR rheology. It is an object of the invention to provide an oscillation applicator without restrictions regarding the usability for certain body regions. According to the invention, the oscillation applicator comprises at least one transducer which generates a reciprocating motion at a given frequency and a belt ( | 05-28-2015 |
20150305647 | COIL ARRANGEMENT FOR A MAGNETIC RESONANCE TOMOGRAPHY DEVICE - A magnetic resonance imaging device for prostate examinations with a patient in said device comprises a coil for generating a strong homogeneous magnetic field in the direction of the longitudinal axis of the patient, at least one transmission coil for generating an electromagnetic alternating field, three gradient coils and suitable reception coils, of which individual coils are arranged below the patient in the lower back region and/or at the rear part and at least one of said coils is arranged above the patient, and also comprises data processing for obtaining images from the signals of the transmission and reception coils, wherein a closed reception coil is provided which sits closely against the patient and surrounds the scrotum and the penis. | 10-29-2015 |
20150335261 | EXPANDABLE CAGE SURROUNDING A MAGNETIC RESONANCE DEVICE AND METHODS THEREOF - Devices and methods for providing an adjustable open-bore magnetic resonance device (MRD) that enable personalized accommodation for users of different sizes. The MRD includes a first main magnetic source and a second main magnetic source in a face-to-face orientation. The magnetic sources are separated by a distance that is adjustable by way of an endoskeletal height adjuster. In some embodiments, a superconducting electromagnet coiled around an oval defines the magnetic volume of interest. In such embodiments, the perimeter of the oval includes a plurality of trapezoid elements housing the coil of the electromagnet, and the trapezoid elements can be moved outwards and inwards relative to the oval's center in the plane of the oval. | 11-26-2015 |
20160015364 | MEDICAL IMAGE DIAGNOSTIC APPARATUS AND MEDICAL IMAGE PROCESSING APPARATUS - A medical image diagnostic apparatus according to the embodiment includes a scanner, image generating circuitry, marker generating circuitry, and control circuitry. The scanner performs scanning to generate an image of the inside of a subject. The image generating circuitry generates an image based on the result of scanning performed by the scanner. The marker generating circuitry generates a marker provided with information at a position serving as a reference for comparison with a certain structure. The control circuitry displays the image and the marker on the same screen of a display. | 01-21-2016 |
20160018489 | METHODS AND SYSTEMS RELATING TO HIGH RESOLUTION MAGNETIC RESONANCE IMAGING - The inventors have established design principles for phased-array MRI coils from the considerations of the target region of the anatomy being evaluated and physical anatomy of the patients. Accordingly, the inventors have demonstrated shape-optimized phased array coils with dense packing of 32 channels for posterior-head imaging exhibiting the SNR gains required to realize not only sub-millimeter fMRI BOLD imaging but also allowing single-shot Gradient Echo-EPI imaging to be performed upon general 3 T MRI instruments. At the same time the design techniques address ergonomic considerations of the patient and designing shape-optimized phased-array MRI coils and patient supports that account for variations within the human population arising from factors such as race, gender, etc. | 01-21-2016 |
20160025823 | TILTABLE HEAD COIL - A head coil for an imaging magnetic resonance tomography (MRT) system is provided. The head coil includes a head coil upper part and a head coil lower part. The head coil lower part includes a lower part base and a movable lower part that may be moved relative to one another via a mechanism for setting a tilt angle. | 01-28-2016 |
20160047868 | Internal Contacting and Cable Routing of a Head Coil with Tilting Function - The embodiments relate to a head coil for an imaging MRT system. The head coil includes a head coil upper part and a head coil lower part. At least the head coil upper part may be tilted relative to the head coil lower part, and an internal connecting cable of the head coil is embodied as a rigid-flex circuit board with a rigid region and a flexible region. | 02-18-2016 |
20160077172 | A DETACHABLE CONNECTOR AND SPLITTABLE RF COIL HOUSINGS - A local magnetic resonance (MR) radio frequency (RF) coil includes a plurality of housing sections that are separable and configured with mating surfaces that meet and engage each other to form an opening which receives a portion of subject anatomy for magnetic resonance imaging, a detachable connector, and a cable. Each housing section includes coil elements enclosed within each housing section which receive MR signals from the received portion of the subject anatomy, and external connectors connected to the coil elements co-located on an outside surface of each housing section and adjacent to the mating surfaces. The detachable connector connects to the external connectors of the housing sections. The cable conveys at least the received MR signals received by the coil elements. | 03-17-2016 |
20160089029 | SHIM COIL DEVICE AND A MAGNETIC RESONANCE COIL SYSTEM HAVING A SHIM COIL DEVICE - A shim coil device for compensating for basic magnetic field inhomogeneities during medical magnetic resonance imaging of a breast of a patient, said shim coil has a housing with a contact surface that configures to bear against a patient, and at least one shim coil element having a shim coil axis. The shim coil is arranged on the patient such that the at least one shim coil axis has an angle of inclination α to the contact surface and/or to a patient surface, where α is ≧45° and α is ≦135°. | 03-31-2016 |
20160095532 | METHOD AND COMPONENTS FOR IN VIVO DETERMINATION OF MALIGNANCY - An apparatus and method apply magnetic fields by generators external to a body or body part with sensors within an in vivo source that are sensitive to applied magnetic fields Through the use of these applied magnetic fields and sensitive sensors, disclosed embodiments can realize much better spatial resolution than is conventionally possible. | 04-07-2016 |
20160095552 | NON-INVASIVE RADIOFREQUENCY COIL FOR MAGNETIC RESONANCE IMAGING - The disclosure relates to a non-invasive, radiofrequency (RF) coil array comprising at least two loop coils configured to wrap in close proximity around a specific anatomical region of a subject, a magnetic Resonance Imaging (MRI) system comprising the RF coil array, and a method of magnetic resonance imaging. | 04-07-2016 |
20160135711 | MAGNETIC RESONANCE IMAGING DEVICE AND RF COIL ASSEMBLY - In a magnetic resonance imaging device provided with a deformable RF coil permanently mounted on a patient table, the RF coil can constantly maintain a matching state and a tuned state in a state of being flat on a top plate and in a state of being wound around a test object. Coil-side connectors | 05-19-2016 |
20160161581 | MAGNETIC RESONANCE IMAGING APPARATUS AND METHOD OF OPERATING SAME - A magnetic resonance imaging (MRI) apparatus and a method of operating the MRI apparatus. The MRI apparatus includes: a monitoring unit configured to monitor an operation of the MRI apparatus; and a control unit configured to determine one of a plurality of power modes for the MRI apparatus based on the monitored operation and control the MRI apparatus to operate in the determined power mode. | 06-09-2016 |
20160169992 | LOW FIELD MAGNETIC RESONANCE IMAGING METHODS AND APPARATUS | 06-16-2016 |
20160178712 | SWITCHING FOR DISTRIBUTING RECEIVE SIGNALS OF AN MR SYSTEM TO RECEIVERS | 06-23-2016 |
20160195594 | A MAGNETIC RESONANCE IMAGING SYSTEM WITHOUT INTEGRATED BODY COIL | 07-07-2016 |
20160252594 | LOCAL SHIM COIL WITHIN A LOCAL COIL FOR LOCAL B0 HOMOGENIZATION IN AN MRT EXAMINATION | 09-01-2016 |
20220137165 | COIL ARRANGEMENT, MR SYSTEM, IN PARTICULAR MRI AND/OR MRS SYSTEM, WITH SUCH A COIL ARRANGEMENT AND USE OF SUCH A COIL ARRANGEMENT - A coil assembly for use as a transmission and/or receiving coil in an MR system comprises a dipole antenna assembly with multiple dipole antennas. Connection elements are converted from an electrically conductive state to an electrically non-conductive state. In the electrically conductive state, the dipole antennas form a cylindrical volume coil and/or a conductor loop assembly, in particular a flat conductor loop assembly. The connection elements comprise blocking circuits which automatically block when a high-frequency alternating voltage with a frequency corresponding to the blocking frequency of the connection element blocking circuits is applied to the coil assembly. | 05-05-2022 |