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7619416 |
Coil assembly and multiple coil arrangement for magnetic resonance imaging
A coil assembly for magnetic resonance imaging comprises a sheet ( 2 ) of flexible and stretchable dielectric material and at least one electrically conducting coil ( 4 a, 4 b ) for receiving...
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7619415 |
Magnetic resonance imaging apparatus, RF coil system, and magnetic resonance imaging method
A magnetic resonance imaging apparatus has at least one RF coil and a data processing control unit. The RF coil generates unique information receives a nuclear magnetic resonance signal, and...
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7619414 |
NMR probe and NMR spectrometer
A signal line is drawn from a generally middle point of the antenna coil, and a capacitance-variable capacitors are connected at both sides of the antenna coil. This structure realizes a circuit in...
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7619413 |
Transmit-receive array for high field MRI
A multi-element MRI head coil is formed in the shape of a helmet that fits over the head of a subject to be imaged. The coil elements are separately driven by rf transmit channels during an MR scan...
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7619412 |
MRI apparatus and high-frequency coil with plural imaging regions
A high-frequency coil for a magnetic resonance imaging apparatus includes two end members formed of a conductive material and arranged opposite to each other. A plurality of rod members, each of...
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7619410 |
System and method for accelerated magnetic resonance parallel imaging
A system and method for MR imaging includes the use of a form of autocalibrated parallel imaging. By combining a segmented, rotated acquisition trajectory with autocalibration parallel imaging...
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7616000 |
Ultra low output impedance RF power amplifier for parallel excitation
An ultra low output impedance RF power amplifier for driving a multiple transmit coil Magnetic Resonance Imaging (MRI) system is described, comprising an output matching network with high power...
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7615999 |
Method and circuit arrangement for operating multi-channel transmit/receive antenna devices
Methods and circuit arrangements for operating a multi-channel transmit/receive antenna device or arrangement, especially for use in a magnetic resonance imaging (MRI) system, are disclosed by...
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7612564 |
Tiled receiver coil array with improved spatial coverage
A phased array for a magnetic resonance (MR) imaging apparatus is disclosed that includes a plurality of receiver coils arranged to form a staggered hexagonal coil array, with the staggered...
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7612562 |
Magnetic resonance imaging apparatus, setting supporting apparatus, and setting supporting method
Support information including at least a setting image showing a present configuration of placing a patient on a bed and a present configuration of placing an RF coil for the patient is displayed....
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7612561 |
Magnetic resonance diagnosing apparatus and its operating method
A magnetic resonance diagnosing apparatus includes a generating unit which generates a plurality of slice images of a object for an imaging region, a determining unit which determines a plurality...
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7609064 |
Probe configured for NMR apparatus and NMR apparatus using the same
A probe for a nuclear magnetic resonance apparatus comprises: a transmission coil for irradiating a sample with a high-frequency electromagnetic wave; and a receiving coil for detecting a nuclear...
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7609063 |
Mobile positioning device for MRI inductively coupled coil
A mobile positioning device for an MRI inductively coupled coil, has at least one pair of coupled coils which are coupled with each other for transmitting signals, wherein one of the at least one...
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7609062 |
Magnetic resonance device with a patient support table and a main field magnet
Magnetic resonance device comprises a patient support table and a main field magnet. The main field magnet is supported so that it can be rotated around at least one axis. The patient support table...
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7606612 |
System and method to perform parallel imaging
A system and method to perform parallel MR imaging are disclosed. The system comprises an MR imaging machine and a probe having at least two MR RF reception coils. Each coil of the probe is...
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7605588 |
RF coil assembly
The present invention aims to provide an RF coil assembly capable of eliminating the need for connecting and disconnecting an electric path at decoupling portions and is an RF coil assembly...
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7602190 |
External MRI imaging coil assemblies and MRI-guided interventional systems utilizing same
An MRI imaging coil assembly includes a primary external MRI imaging coil and a secondary external MRI imaging coil positioned proximate to the primary MRI imaging coil. The primary imaging coil...
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7602189 |
Magnetic resonance examination platform with independently moveable bed and antenna device
An examination platform for a magnetic resonance apparatus has a patient bed for supporting a patient, a local antenna device for acquisition of magnetic resonance signals, and a drive device...
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7602188 |
System of electric coils for transmitting and receiving radio-frequency magnetic fields in a magnetic-resonance imaging apparatus, and magnetic-resonance imaging apparatus provided with such a system of electric coils
The invention relates to a magnetic-resonance imaging (MRI) apparatus comprising an electrical coil system ( 17 ) for transmitting and receiving a radio-frequency (RF) magnetic field from an...
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7602187 |
Integrated power supply for surface coils
A radio frequency receive coil for receiving a magnetic resonance signal includes a radio frequency antenna. The radio frequency antenna includes one or more electrical conductors ( 72, 74, 76, 78,...
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7602186 |
RF coil system for an MRI system with a fixed coil and with a moving coil part below the patient support
The present invention relates to an RF system for a magnetic resonance imaging device ( 13 ). The RF system comprises an RF transmitter coil subsystem and an RF receiver coil subsystem ( 18 ),...
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7598740 |
Radio-frequency coil arrangement
A radio-frequency coil arrangement has a number of conductor traces forming basic coils and with capacitors interconnected in the conductor traces. Conductor traces of various basic coils intersect...
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7598739 |
Radio frequency gradient, shim and parallel imaging coil
A plurality of linear current elements are configured about a specimen to be imaged. A current in each current element is controlled independent of a current in other current elements to select a...
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7598737 |
Method and control device for determination of the position of a local coil in a magnetic resonance apparatus
In a method for determination of a position of a local coil on a bed in at least one spatial direction within a magnetic resonance scanner, a signal intensity value is initially, extracted from...
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7595713 |
Magnetic field generator for MRI and method of covering magnetic field generator for MRI
A magnetic field generator for MRI comprises a generator main body and a covering member for covering the whole generator main body, and the covering member is made of a non-magnetic material, for...
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7595641 |
Electronic NMR reference signal systems and methods
According to some embodiments, a synthetic nuclear magnetic resonance (NMR) reference signal is injected into the receive path of an NMR spectrometer, after the NMR probe and before the receive...
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7595640 |
Tomographic measuring system and method for conducting measurements
A tomographic measuring system is disclosed with at least two tomographic measuring devices, of which at least a first can interfere with a second in a manner disadvantageous for conducting...
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7592813 |
Wireless RF coil power supply
A system wirelessly supplies electrical power to an RF coil and an analog-to-digital converter (ADC) for an MRI system. The system supplies power to at least operate the RF coil and ADC without the...
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7592811 |
High-frequency resonant cavity for nuclear magnetic resonance, using radio-frequency transmission lines
A high frequency cavity resonator for nuclear magnetic resonance, including: a set of transmission lines; and a shield surrounding these transmission lines, wherein each of these transmission lines...
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7589531 |
Gradient magnetic field coil unit, gantry for MRI apparatus, and MRI apparatus
A gradient magnetic field coil unit includes a main coil layer that has a main coil for generating a gradient magnetic field and is formed in a substantially cylindrical shape. A shield coil layer...
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7589530 |
Coil device and nuclear magnetic resonance imaging apparatus using the same
An RF coil which is resonant and tuned with two different frequencies, has uniform space sensitivity and occupies less space is provided. The coil is, particularly suited to the high magnetic field...
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7583084 |
Arrangement for signal conversion
In an arrangement for conversion of an analog acquisition signal of an acquisition coil of a magnetic resonance apparatus into a digital signal, the output of the acquisition coil is connected with...
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7583083 |
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...
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7579838 |
Systems, methods and apparatus for a partially elongated field of view in a magnetic resonance imaging system
Systems, methods and apparatus are provided through which a partially elongated field-of-view in a magnetic resonance imaging system is generated either by an asymmetric primary coil or a...
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7579836 |
Multi-layer resonator for magnetic resonance applications with the resonator structure itself allowing equal magnitude current during active operation
A resonator for magnetic resonance applications has a conductor element proceeding in an extension direction, that operates with a resonance current at a resonance frequency oscillating therein in...
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7579835 |
Multi-layer resonator for magnetic resonance applications with circuitry allowing equal magnitude current during active operation
A resonator for magnetic resonance applications has a conductor element that extends from a first conductor end to a second conductor end. During operation of the conductor element at a resonance...
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7576542 |
System and apparatus for providing electrical and cooling interconnections in a magnetic resonance imaging (MRI) system
A coil assembly and a magnetic resonance imaging system employing same are disclosed. The coil assembly includes a main gradient coil assembly having a first section positioned at a first end of...
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7576541 |
RF coil for MRI apparatus, method of using RF coil for MRI apparatus, and MRI apparatus
A RF coil according to the invention is made up of an 8-shaped coil having a crossed conductive path, and an impedance adjustment coil that performs connection between crossing points of the...
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7576540 |
Gradient coil and magnetic resonance imaging apparatus using the same
The gradient coil for a magnetic resonance imaging apparatus is adapted to encode information on a spatial position of a subject to be inspected into a nuclear magnetic resonance signal. The...
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7573432 |
MRI antenna
In one example, an antenna is disclosed comprising a first, outer conductor, at least one inner conductor within the first outer conductor, and a second outer conductor surrounding the first outer...
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7573267 |
System and method for active MR tracking
A system and method for active MR tracking includes a magnetic resonance imaging (MRI) system having a plurality of gradient coils positioned about a bore of a magnet, an RF coil assembly...
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7573264 |
Atomic magnetic gradiometer for room temperature high sensitivity magnetic field detection
A laser-based atomic magnetometer (LBAM) apparatus measures magnetic fields, comprising: a plurality of polarization detector cells to detect magnetic fields; a laser source optically coupled to...
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7570058 |
System and method for treatment of liquid coolant in an MRI system
A system and method for the monitoring and treating of a coolant in a cooling system of an MRI system includes a deionization kit connectable to the cooling system of the MRI system. The...
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7570057 |
NMR spectrometer
An object of the present invention is to solve the bending of an NMR probe and a room temperature shim coil so that they can be positioned easily. In the NMR spectrometer including split-pair...
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7570056 |
Magnetic resonance imaging apparatus
A coil support unit for use in a magnetic resonance imaging apparatus provided with a top board for placing thereon a subject, and a radio frequency coil provided on an upper surface of the top...
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7567083 |
Superconductive magnetic apparatus for magnetic resonance imaging unit
A super-conducting magnet apparatus in an MRI system which may reduce unevenness among magnetization characteristics of ferromagnetic elements arranged between super-conductive shield coils and...
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7567082 |
Magnetic resonance imaging apparatus
A magnetic resonance imaging apparatus includes a gantry with a gradient coil which applies a gradient magnetic field to a subject in a static magnetic field, a bed which slides a top board in a...
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7565189 |
MRI gradient coils with reduced neural stimulation
A novel approach to the design of gradient coils for MRI is introduced which takes into account from the start the effects of induced E-fields and hence currents in a patient subjected to time...
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7564244 |
RF resonator system and method for tuning an RF resonator system
A radio-frequency (RF) resonator system, in particular, for a magnetic resonance (MR) probe, comprising at least one RF resonator with a substrate, on which a conductive structure is applied,...
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7560934 |
MRI coil element decoupling utilizing multiple feeds
An MRI system includes a receive coil having a coil element. Two preamplifiers are used in relation to the coil element, thus placing a large impedance in series with the coil element. The optimal...
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