Patent application number | Description | Published |
20090027054 | RADIO-FREQUENCY ACQUISITION DEVICE FOR A MAGNETIC RESONANCE TOMOGRAPHY APPARATUS - A radio-frequency acquisition device for a magnetic resonance tomography apparatus has at least one reception antenna for acquisition of magnetic resonance signals and with an amplifier device to amplify acquired magnetic resonance signals. The amplifier device has an input transistor and a transformation device to transform the source impedance of the acquisition antenna into a source impedance adapted to the input transistor, and wherein the transformation device can be switched between at least two transformation ratios. | 01-29-2009 |
20090302845 | METHOD AND DEVICE FOR FIELD QUALITY TESTING OF A MAGNETIC RESONANCE ANTENNA - In a method and device for field quality testing of a magnetic resonance antenna arrangement of a magnetic resonance system composed of multiple antenna elements, a test signal is fed into the respective antenna elements by a transmission antenna and the test signal, or a noise signal that occurs with no signal fed to the respective antenna elements, is determined at a receiver unit for each of at least some of the individual antenna elements. The noise received noise signals and/or test signals are analyzed with regard to specific characteristic data and a quality state of the magnetic resonance antenna arrangement is determined based thereon. | 12-10-2009 |
20100033180 | METHOD FOR CALIBRATION OF A MAGNETIC RESONANCE ACQUISITION CHANNEL, CALIBRATION DATA DETERMINATION DEVICE AND MAGNETIC RESONANCE SYSTEM - In a method for calibration of a magnetic resonance acquisition channel having a magnetic resonance acquisition antenna in a magnetic resonance system, in a test signal is emitted by the transmission antenna in the magnetic resonance system and is received by the acquisition antenna. Acquisition channel calibration data for the appertaining magnetic resonance acquisition channel are determined on the basis of the received test signal. The method can be implemented by a calibration data determination device for a magnetic resonance system as well as by a magnetic resonance system itself. | 02-11-2010 |
20100156412 | LOCAL COIL ARRANGEMENT FOR MAGNETIC RESONANCE APPLICATIONS WITH ACTIVATABLE MARKER - A local coil arrangement for magnetic resonance applications has a base body in which at least one local coil is arranged. An excitation signal to excite an examination subject to emit a magnetic resonance signal can be emitted by the local coil and/or a magnetic resonance signal emitted by the examination subject can be received by means of said local coil. At least one volume region is present in the base body, in which an amount of a substance is located that can be excited by means of the coil or another coil so as to emit a magnetic resonance signal. A shielding is arranged in the base body. The shielding can be controlled so as to either shield or not shield the volume region depending on the control state, so that the volume region is occluded or visible with regard to magnetic resonance applications. | 06-24-2010 |
20100213939 | REMOTE BODY ARRAYS FOR HIGH-PERFORMANCE MAGNETIC RESONANCE IMAGING AND SPECTROSCOPY - In a magnetic resonance imaging apparatus and method, radio frequency signals are radiated into an examination subject and/or received from the examination subject by an array of radio frequency coils that completely encircles the examination subject, and that is located at a distance from the examination subject out of contact with the examination subject. | 08-26-2010 |
20100225317 | MULTI-CHANNEL METHOD AND DEVICE TO EVALUATE MAGNETIC RESONANCE SIGNALS, WITH REDUCED NUMBER OF CHANNELS - An optimized processing of data of multiple local coils is enabled by a device and a method to evaluate signals received with coils of a magnetic resonance tomography apparatus, wherein first signals are generated by means of coils via magnetic fields coming from a body, wherein a region in the body is defined, wherein weighting factors are calculated with the use of the first signals, wherein second signals are generated with the coils from magnetic fields coming from a body, wherein signals weighted with the use of the weighting factors are calculated from the second signals, wherein the weighted signals are processed further. | 09-09-2010 |
20100272229 | PATIENT BED, LOCAL COIL ARRANGEMENT AND METHOD TO DETERMINE THE POSITION OF LOCAL COILS IN A MAGNETIC RESONANCE APPARATUS - At least one non-stationary coil in a magnetic resonance tomography system is attached with a fastener to a displaceable bed. The fastener has a position detector incorporated therein to determine the position or a component of the position of the non-stationary coil. The portion of the position is, for example, the position along the axis of symmetry of the measurement tube. | 10-28-2010 |
20100289492 | METHOD AND DEVICE FOR POSITION DETERMINATION OF BODY MATRIX COILS IN MR SYSTEMS - In a device and a method to determine the position of at least one local coil for a magnetic resonance tomography apparatus, the field strength of a magnetic field is measured at multiple locations with at least one magnetic field strength sensor, and the position of the local coil ( | 11-18-2010 |
20110109315 | MR SIGNAL TRANSMISSION IN A LOCAL COIL ARRANGEMENT - In a magnetic resonance tomography local coil arrangement and a method for processing signals received thereby at least one local coil is fashioned to receive at least one reception signal and at least one amplifier is provided that amplifies the at least one reception signal. A frequency converter generates at least one intermediate frequency signal from the at least one reception signal the intermediate frequency of the intermediate frequency signal differing from the reception signal frequency of each reception signal. An analog-digital converter converts the analog intermediate frequency signal into a digitized signal. A shielding device shields against at least radio-frequency signals, the shielding device surrounding at least the analog-digital converter. At least one frequency filter is arranged between the at least one local coil and the analog-digital converter, the frequency filter exhibiting a transmission range for signals with the intermediate frequency of an intermediate frequency signal. The digitized signal is transmitted from the local coil arrangement. | 05-12-2011 |
20110169491 | SPINE COIL ARRAY - The present embodiments relate to a spine coil array for an imaging system that includes a number of coil elements. The density of the coil elements changes at least once from a first region to a second region in at least one direction within the spine coil array. | 07-14-2011 |
20110221441 | LOCAL COIL FOR A MAGNETIC RESONANCE DEVICE - A local coil for a magnetic resonance device includes a connector apparatus for establishing a connection to a plug-in station on a patient couch and at least one storage facility. The storage facility may be used to read out by way of the connection and may store at least one non-modifiable data item describing a property of the local coil. The storage facility may include at least one detection facility for acquiring measurement values describing the state of the local coil and at least one evaluation facility configured to modify the readout address of the storage facility as a function of the measurement values. | 09-15-2011 |
20110260728 | MAGNETIC RESONANCE COIL DEVICE - A combined head and nape magnetic-resonance coil device for a magnetic-resonance examination using a magnetic-resonance device, includes at least one posterior coil unit and at least two anterior coil units. At least one anterior coil unit of the at least two anterior coil units is mounted in relation to the posterior coil unit such that the at least one anterior coil unit may move along at least one direction of a spacing between the posterior coil unit and the at least one anterior coil unit. | 10-27-2011 |
20120025830 | MAGNETIC RESONANCE TOMOGRAPHY LOCAL COIL - The present embodiments relate to a local coil for a magnetic resonance tomography system. The local coil extends in a first direction and in a second direction orthogonal to the first direction. The local coil has a plurality of coil elements. At least some coil elements of the plurality overlap at least partly in a third direction running between the first direction and the second direction. | 02-02-2012 |
20120068710 | MAGNETIC RESONANCE DEVICE, REFLECTOR ARRAY AND HIGH-FREQUENCY SHIELD SYSTEM FOR A MAGNETIC RESONANCE DEVICE - A magnetic resonance device with a measurement chamber, an antenna arrangement that has a plurality of antenna elements arranged at least in certain areas around the measurement chamber, a gradient coil system arranged outside the antenna arrangement as seen from the measurement chamber, and a high-frequency shield system arranged between the antenna arrangement and the gradient coil system are provided. The high-frequency shield system has a reflector array with a plurality of passive reflector resonance circuits, each of which is configured such that resonance frequencies of the plurality of passive reflector resonance circuits lie below an operating magnetic resonance frequency of the magnetic resonance device and that the plurality of passive reflector resonance circuits has an inductive overall impedance. | 03-22-2012 |
20120098540 | ANTENNA CIRCUIT FOR AN MRI SYSTEM - The present embodiments include an antenna circuit that is adapted to supply and/or read out a plurality of antenna elements of an antenna assembly of a magnetic resonance imaging system. The antenna elements are decoupled by phase shifter elements and supplied with signals by the phase shifter elements. The antenna circuit may also be used to detect signals that are received by the antenna elements. | 04-26-2012 |
20120161772 | D-SHAPED COIL - The present embodiments relates to a magnetic resonance tomography system having a coil system. The coil system includes an upper part having at least one antenna and a lower part having at least one antenna. The upper part of the coil arrangement is disposed above a bore for receiving an examination subject. The lower part of the coil arrangement is disposed below a field of view of the magnetic resonance tomography system. The lower part of the coil arrangement is closer to the examination subject than the upper part of the coil arrangement. | 06-28-2012 |
20120182013 | ANTENNA ARRANGEMENT FOR MAGNETIC RESONANCE APPLICATIONS - An antenna arrangement for magnetic resonance applications includes antenna elements substantially parallel to a common central axis, distributed around the central axis at a distance from the central axis, and enclosing an essentially cylindrical volume. The antenna arrangement includes intermediate connections that connect to immediately adjacent antenna elements at connection points that lie between the ends of the antenna elements. A preamplifier connects to each of the intermediate connections and has an output that, in a receive mode, corresponds to a respective feed-out point. In send mode, the antenna arrangement injects radio-frequency signals into the antenna elements using the injection points. The antenna arrangement is also configured to adjust the intermediate connections to a higher resistance when the antenna arrangement is in the send mode and at least some of the intermediate connections to a lower resistance when the antenna arrangement is in the receive mode. | 07-19-2012 |
20120187949 | MAGNETIC RESONANCE APPARATUS - A magnetic resonance apparatus includes a receiving system with at least one receiver configured to process at least one receive signal of a receive channel. The magnetic resonance apparatus further includes at least one switching device configured to variably assign a first number of receive channels to a first number of inputs of the at least one receiver. The switching device has a crossbar switch and a pre-selection circuit connected upstream of the crossbar switch. Each receive channel of a first group of receive channels is directly connected to an input of a first group of inputs that is permanently assigned to the respective receive channel. | 07-26-2012 |
20120187950 | PRINTED CIRCUIT BOARD WITH INTEGRATED SHIELDING - A printed circuit board (PCB) is flat, providing a top side and a bottom side. A plurality of terminations is disposed on the top side in proximity to one end face of the PCB. Each termination has at least one contact that is connected to a respective conductor track of the PCB. The respective conductor track is connected to a respective local coil or to a contact disposed on the top side or the bottom side of a respective further termination. The local coil and/or at least one of the further terminations are disposed in proximity to the other end face. A basic shield impervious to frequencies in a magnetic resonance range is disposed on the top side and/or the bottom side, and an auxiliary shield electrically connected to the basic shield and impervious to frequencies in the magnetic resonance range is disposed on narrow sides of the PCB. | 07-26-2012 |
20120194192 | MECHANICALLY FLEXIBLE MAGNETIC RESONANCE COIL WITH OPENING CONDUCTOR STRUCTURES - The present embodiments relate to a local coil for a magnetic resonance tomography system, the local coil including an antenna element that includes a releasable connection to form an opening. | 08-02-2012 |
20120249142 | LOCAL COIL - A local coil for a magnetic resonance tomography system includes a housing with a recess for an object under examination. The local coil also includes a radio-frequency receive antenna system and one or more shim elements for homogenization of a static basic magnetic field of the magnetic resonance tomography system. | 10-04-2012 |
20120256633 | RECEIVING COIL AND LOCAL COIL FOR MAGNETIC RESONANCE APPLICATIONS - A local coil for magnetic resonance applications includes a rigid housing that radially surrounds a substantially cylindrical examination volume. Arranged in the rigid housing is a transmitting coil, by which an excitation signal may be applied to the examination volume. An object to be examined arranged in the examination volume may be excited by the excitation signal for emitting a magnetic resonance signal. The local coil includes a size-variable structure, in which an antenna assembly for receiving the magnetic resonance signal emitted by the object to be examined is arranged. The size-variable structure is arranged in the examination volume and is connected to the rigid housing. The size-variable structure is soft and flexible. | 10-11-2012 |
20120299593 | LOCAL COIL FOR A MAGNETIC RESONANCE DEVICE - A local coil for a magnetic resonance device includes a double resonance conductor loop arrangement having at least one conductor loop, and a converter apparatus configured for converting operating energy received at a first resonance frequency into an operating voltage. The local coil also includes an electronics arrangement operated with the operating voltage for processing magnetic resonance signals received at a second resonance frequency. | 11-29-2012 |
20130076353 | RECORDING OF CALIBRATION DATA FOR A MAGNETIC RESONANCE SYSTEM - A local coil with a plurality of magnetic resonance antenna elements and a plurality of test signal coupling units assigned individually or in groups to the plurality of magnetic resonance antenna elements is provided. In order to transmit a test signal, each test signal coupling unit of the plurality of test signal coupling units is connected via a star connection unit to a joint test signal connector and/or to a transmission cable of a transmit and/or receive chain of an assigned magnetic resonance antenna element of the plurality of magnetic resonance antenna elements. | 03-28-2013 |
20130082707 | Method for the Control of a Magnetic Resonance System - A method for the control of a magnetic resonance system is provided. In a test phase before a magnetic resonance measurement, a test high-frequency pulse with several parallel individual high-frequency pulses is transmitted with a transmitter antenna arrangement over various different high-frequency transmitter channels. At lower transmitter power, the test high-frequency pulse generates essentially the same field distribution as an excitation high-frequency pulse to be transmitted during a subsequent magnetic resonance measurement. A high-frequency field generated by this test high-frequency pulse is measured in at least one area of a local pulse arrangement, and on the basis of the high-frequency field measured, a high-frequency field value that is to be anticipated at the local coil arrangement during the subsequent magnetic resonance measurement is determined. The control of the magnetic resonance system during a later magnetic resonance measurement includes taking the high-frequency field value into account. | 04-04-2013 |
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 |
20130181708 | AUTOMATIC CONTROL OF THE POWER CONSUMPTION OF A MAGNETIC RESONANCE FACILITY - A method for operating a magnetic resonance facility is proposed. The magnetic resonance facility has a number of power-consuming components. The power consumption is determined for each component. Operation of the components is controlled based on at least one criterion so that a predetermined threshold value for the overall power consumption of the magnetic resonance facility is not exceeded. | 07-18-2013 |
20130193968 | LOCAL COIL WITH A NUMBER OF SEPARATELY SWITCHABLE LOCAL COIL SHIM COILS - A local coil for an imaging system includes a number of shim coils. A current for generating a shim field in one of the shim coils may be switched on and switched off. A current for generating a shim field in another of the shim coils may be switched on and switched off. The currents may be switched on and switched off independently of one another for generating a respective shim field in the shim coils. | 08-01-2013 |
20130207655 | LOCAL COIL ARRANGEMENT HAVING INTEGRATED SHIM CONDUCTOR - When a portion of a structure enclosing a local coil is inserted in a homogeneity region of a basic magnetic field of a magnetic resonance system, the local coil is operable to receive magnetic resonance signals originating from a specific detection zone for the local coil arrangement. At least one conductor is arranged in the structure. Field lines of a compensation magnetic field generated by current encircling the conductor form a compensation magnetic field angle with the basic magnetic field in an edge area of the detection zone. Return conductors complete an electric circuit containing the conductor and extend in the direction of the basic magnetic field and/or are arranged such that field lines of an interfering magnetic field counteracting the compensation magnetic field encircle the respective return conductor and form an interfering magnetic field angle with the basic magnetic field in the edge area. | 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 |
20130229178 | Local Screen and Method for the Screening Out of Magnetic Resonance Signals - A local screen screens out magnetic resonance signals of an object under examination during magnetic resonance imaging with a magnetic resonance device. The local screen includes a plurality of electrically conductive local screen elements that are arranged such that no direct electrically conductive connection pertains between the local screen elements. The local screen further includes a carrier device for accommodating the local screen elements and a number of switching devices that are connected in an electrically conductive manner to the local screen element, and are embodied such that the electrical resistance may be controlled by a number of screen control signals. In addition, the local screen includes a number of screen control signal inputs for the number of screen control signals. | 09-05-2013 |
20130229181 | Magnetic Resonance Facility Having a Cylindrical Patient Receiving Unit and Patient Capsule - A magnetic resonance facility having a cylindrical patient receiving unit includes a high-frequency shield. The high-frequency shield is disposed to enclose the patient receiving unit and shield at least one high-frequency coil from a gradient coil arrangement. The high-frequency shield is extendable to form a shielded chamber that shields the high-frequency coil from high-frequency signals outside the shielded chamber. | 09-05-2013 |
20130241557 | MAGNETIC RESONANCE COIL WITH OVERLAPPING COIL ELEMENTS - A magnetic resonance coil for transmitting and/or receiving magnetic resonance signals is provided. The magnetic resonance coil includes at least two overlapping coil elements. Coil conductors of the at least two overlapping coil elements intersect in intersection regions and are arranged on a support. Mutually overlapping coil elements of the at least two overlapping coil elements are arranged on different sides of the support. The support is formed from at least three layers of a support material. A cavity that is filled with air or a filler material, the dielectric constant of the filler material being lower than the dielectric constant of the support material, is provided in the intersection regions in a middle layer of the at least three layers. | 09-19-2013 |
20130249556 | MATERIAL FOR USE IN A MAGNETIC RESONANCE INSTALLATION, METHOD FOR MANUFACTURING SAID MATERIAL, AND MAGNETIC RESONANCE INSTALLATION - A material for a magnetic resonance installation is provided, wherein the material includes a support material and a magnetic doping material which is admixed in a specific proportion. The doping material exhibits an anisotropic susceptibility. In respect of the anisotropic susceptibility, the doping material exhibits a mean orientation along a predefined direction. An essentially homogeneous intermixture of the support material and the doping material is present within a volume of the material which is smaller than 1 mm | 09-26-2013 |
20130249557 | MATERIAL FOR USE IN A MAGNETIC RESONANCE SYSTEM, METHOD FOR PRODUCING THE MATERIAL AND MAGNETIC RESONANCE SYSTEM - A material for use in a magnetic resonance system includes a carrier material and a doping material. The carrier material and the doping material are admixed in a specific proportion. A volume of the material smaller than 1 mm | 09-26-2013 |
20130249559 | Multi-Layer Cushion for Optimum Adjustment to Anatomy and for Susceptibility Adjustment - A shim cushion for a magnetic resonance tomography system includes at least two layers. A first layer of the at least two layers includes both a higher deformability and also a lower susceptibility than a second layer of the at least two layers. | 09-26-2013 |
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 |
20140002085 | Automatic Detuning of Non-Connected Transceiver Coils for MRI | 01-02-2014 |
20140012127 | HEARING PROTECTION APPARATUS AS WELL AS A MEDICAL IMAGING APPARATUS HAVING THE HEARING PROTECTION APPARATUS AND A METHOD FOR DETECTING MOVEMENT OF A PATIENT'S HEAD - A hearing protection apparatus includes a first ear coupling unit, which is designed for positioning on a first ear of a user, a second ear coupling unit, which is designed for positioning on a second ear of the user, and a sound protection for at least partial shielding of sound waves, wherein the hearing protection apparatus has at least one motion sensor unit. | 01-09-2014 |
20140043029 | Activation of Transmit/Receive Arrays for Decoupling During Transmission - A system for electromagnetic excitation of an object under examination during magnetic resonance tomography includes a radio frequency (RF) device for generating a radio-frequency signal and a plurality of antennas for emitting the radio-frequency signal. A signal connection exists between the output of the RF device and the plurality of antennas. A source impedance of the signal connection to the output of the RF device at a connection point of the plurality of antennas is significantly higher than the impedance of the plurality of antennas at the connection points, so that the plurality of antennas are fed in a current source feed mode if a radio-frequency signal is present. | 02-13-2014 |
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 |
20140055127 | Identifying a Position of Transmission/Reception Coils of a Magnetic Resonance Imaging Scanner with Labels Read in Motion - A method and a device for identifying a position of a local coil of a magnetic resonance imaging scanner relative to a position of a patient couch are provided. The device includes at least one reading unit that is configured to determine a position of at least one label at the local coil relative to the at least one reading unit. The device also includes a position determination apparatus that is configured to determine the position of the patient couch relative to the magnetic resonance imaging scanner. The device includes a position determination apparatus that is configured to determine the position of the local coil relative to the patient couch based on the determined position of the at least one label and the determined position of the patient couch. | 02-27-2014 |
20140055132 | Identifying the Static Position of Transmission/Reception Coils of a Magnetic Resonance Imaging Scanner with the Aid of Electronically Readable Labels - A device for identifying a position of a local coil of a magnetic resonance imaging scanner relative to a position of a patient couch includes at least one label configured to transmit a signal with at least one identity number wirelessly, and at least one reading unit with a reading-unit antenna. The at least one reading unit is configured to receive the signal. The device also includes a position determination apparatus configured to determine the position of the local coil relative to the patient couch. | 02-27-2014 |
20140055148 | Identifying Transmission/Reception Coils of a Magnetic Resonance Imaging Scanner with the Aid of Electronically Readable Labels - A device for identifying a local coil property of a local coil for a magnetic resonance imaging scanner includes at least one label configured to transmit at least one identity number wirelessly. The device also includes at least one reading unit with a reading-unit antenna. The reading unit is configured to receive the at least one identity number. The device includes an identification apparatus configured to identify a local coil property of the local coil based on the at least one received identity number. | 02-27-2014 |
20140070807 | MAGNETIC RESONANCE UNIT, A MAGNETIC RESONANCE APPARATUS WITH THE MAGNETIC RESONANCE UNIT, AND A METHOD FOR DETERMINATION OF A MOVEMENT BY A PATIENT DURING A MAGNETIC RESONANCE EXAMINATION - A magnetic resonance unit with a housing unit and a patient accommodation area for the accommodation and/or holding of at least one part region of a patient is provided. The patient accommodation area is surrounded at least partially by the housing unit, a first and a second movement sensor unit for acquiring a first and a second item of movement information of a movement of the patient. The first movement sensor unit exhibits a first field of view for the acquisition of a first part region of the patient and/or of the patient accommodation area, and the second movement sensor unit exhibits a second field of view for the acquisition of a second part region of the patient and/or of the patient accommodation area, which is formed differently in relation to the first part region of the patient and/or of the patient accommodation area. | 03-13-2014 |
20140073904 | METHOD FOR ACQUIRING A MOVEMENT OF A PATIENT DURING A MEDICAL IMAGING EXAMINATION - A method for acquiring a movement of a patient during a medical imaging examination, in particular a magnetic resonance examination, by means of a medical imaging device, in particular a magnetic resonance device is provided. The method includes the following method steps:
| 03-13-2014 |
20140073908 | MAGNETIC RESONANCE IMAGE RECORDING UNIT AND A MAGNETIC RESONANCE DEVICE HAVING THE MAGNETIC RESONANCE IMAGE RECORDING UNIT - A magnetic resonance image recording unit for recording at least part of a patient during a magnetic resonance examination is presented. The magnetic resonance image recording unit has a first housing wall, a patient receiving area which is at least partially enclosed by the first housing wall, and a motion sensor unit for detecting a movement of the patient. The motion sensor unit has at least one motion sensor element which is arranged in a section of a side of the first housing wall facing away from the patient receiving area. | 03-13-2014 |
20140077803 | Combined HF/Shim/Gradient Signal Routing - A method and a magnetic resonance tomography (MRT) system are provided. The MRT system includes at least one cable. The MRT system is configured to transmit high frequency (HF) signals for at least one HF transmitting coil, and shim signals for at least one shim coil and/or gradient signals for at least one gradient coil in the at least one cable. | 03-20-2014 |
20140161336 | Dynamic Adaptation of a Degree of Signal Compression for MRT Image Processing - An apparatus and a method for generating an image from N reception signal data sets of signals received by a plurality of coils of a magnetic resonance tomography appliance from a region of a body to be examined using an image processing computer are provided. The apparatus includes a degree-of-compression determining device. A ratio N/M of the number N of N reception signal data sets generated from the signals received by the plurality of coils to a smaller number M of mode data sets is defined taking account of a plurality of parameters. The plurality of parameters at least also represent system resources of the image processing computer. Using a compression computer, the N reception signal data sets are compressed into M mode data sets. After this, the M mode data sets are used by the image processing computer for generating the image of the region of the body. | 06-12-2014 |
20150022208 | Use of a Plurality of TX Coils - At least two RF transmission coil arrangements are provided. Each of the at least two RF transmission coil arrangements includes at least one RF transmission antenna. The at least two RF transmission coil arrangements are actuatable by a transmission apparatus of the magnetic resonance imaging system for transmitting RF pulses. | 01-22-2015 |
20150025361 | Breast Coil with a Mechanical Height Adjustment - A local coil for a magnetic resonance imaging (MRI) system is a breast coil that includes at least one height adjustment apparatus. | 01-22-2015 |
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 |
20150045655 | MR Marker for Magnetic Resonance Imaging - An MR marker for magnetic resonance imaging includes: (1) a closed volume containing a marker medium, (2) a first marker coil surrounding the volume for detecting an MR signal from the marker medium, (3) an RF shield which surrounds at least the volume and the first marker coil and screens against external RF fields, (4) a second marker coil, arranged outside the RF shield, for inductive and/or capacitive coupling to a magnetic field, and/or for emitting the MR signal detected by the first marker coil, (5) a first electrical interface for controllable electrical connection of the first marker coil to the magnetic resonance imaging scanner, (6) a second electrical interface for controllable coupling of the second marker coil and first marker coil, and (7) an electrical controller with which the first interface and/or the second interface may be controlled. | 02-12-2015 |
20150054510 | Patient-Adaptive B0 Homogenization of MR Systems Using Different Types of Shim Coils - The embodiments relate to methods and to magnetic resonance tomography systems having a shim system, where the shim system includes at least one global shim coil in an area surrounding the bore of the magnetic resonance tomography system, and where the shim system includes a local shim coil in a local coil of the magnetic resonance tomography system with a shim controller, where the shim controller embodied to define shim currents for the global shim coil and for the local shim coil. | 02-26-2015 |
20150065857 | Determining a Respiratory Rate of a Living Being - A method for determining a respiratory rate of a living being includes emitting a radio signal using a radio transmitter arranged on the living being. The emitted radio signal is acquired, and the respiratory rate is determined based on the acquired radio signal. | 03-05-2015 |
20150070014 | Compatible Magnetic Resonance Receiver - A method and an apparatus for a magnetic resonance imaging system are provided. A type of further processing of signals transmitted by a local coil to a magnetic resonance imaging (MRI) system is determined in dependence on information received in or from the local coil about a local-coil type of the local coil. | 03-12-2015 |