Patent application number | Description | Published |
20080197848 | Rf Volume Coil With Selectable Field of View - A radio frequency coil for magnetic resonance imaging or spectroscopy includes a plurality of generally parallel conductive members ( | 08-21-2008 |
20080265889 | Multiple-Channel Transmit Magnetic Resonance - In a transmit apparatus, a multi-channel radio frequency transmitter ( | 10-30-2008 |
20090102483 | MAGNETIC RESONANCE WITH TIME SEQUENTIAL SPIN EXCITATION - In a magnetic resonance scanner, a main magnet ( | 04-23-2009 |
20090195249 | MAGNETIC SHIELDING FOR A PET DETECTOR SYSTEM - A positron emission tomography (PET) detector ring comprising: a radiation detector ring comprising scintillators ( | 08-06-2009 |
20090201019 | MR INVOLVING HIGH SPEED COIL MODE SWITCHING BETWEEN I-CHANNEL LINEAR, Q-CHANNEL LINEAR, QUADRATURE AND ANTI-QUADRATURE MODES - Hybrid circuitry ( | 08-13-2009 |
20100026303 | DOUBLY RESONANT HIGH FIELD RADIO FREQUENCY SURFACE COILS FOR MAGNETIC RESONANCE - A radio frequency coil comprises an annular conductor or parallel annular conductors ( | 02-04-2010 |
20100033186 | SPLIT GRADIENT COIL AND PET/MTI HYBRID SYSTEM USING THE SAME - A generally cylindrical set of coil windings ( | 02-11-2010 |
20100060282 | THREE-DIMENSIONAL ASYMMETRIC TRANSVERSE GRADIENT COILS - A transverse magnetic field gradient coil includes a set of primary coil loops ( | 03-11-2010 |
20100117642 | SINUSOIDALLY RESONANT RADIO FREQUENCY VOLUME COILS FOR HIGH FIELD MAGNETIC RESONANCE APPLICATIONS - A radio frequency coil assembly includes an annular conductor ( | 05-13-2010 |
20100135559 | HYBRID MR/PET WITH CORRECTION FOR RADIATION ABSORPTION BY MR COIL - An imaging method comprises: acquiring magnetic resonance data of a subject using a magnetic resonance component ( | 06-03-2010 |
20100188082 | THERMALLY STABILIZED PET DETECTOR FOR HYBRID PET-MR SYSTEM - In a hybrid PET-MR system, PET detector elements ( | 07-29-2010 |
20100219347 | MR/PET IMAGING SYSTEMS - An imaging system includes positron emission tomography (PET) detectors ( | 09-02-2010 |
20100253333 | DUAL TUNED VOLUME COILS ADAPTED TO PROVIDE AN END RING MODE - A magnetic resonance coil includes parallel elongate conductive elements ( | 10-07-2010 |
20100290683 | MR-PET CYCLIC MOTION GATING AND CORRECTION - In preparation for acquiring PET image data, subject motion models are built based on physiologic signal monitoring and MR data is collected and used for improved PET imaging. The physiologic signal monitoring is also used during PET imaging, and the acquired MR data is used for prospective or retrospective gating of the PET image acquisition, or in the PET reconstruction for improved correction/imaging. | 11-18-2010 |
20110115483 | TRANSMIT/RECEIVE COIL FOR ULTRA-HIGH FIELD MRI - A magnetic resonance coil comprises a first set of coil elements ( | 05-19-2011 |
20110121832 | SELF-SHIELDED GRADIENT COIL - Gradient coil assemblies for horizontal magnetic resonance imaging systems (MRIs) and methods of their manufacture. Some embodiments may be used with open MRIs and can be used with an instrument placed in the gap of the MRI. In general, concentrations of conductors or radially oriented conductors may be moved away from the gap of the MRI so as to reduce eddy currents that may be induced in any instrument placed within the gap. Systems for directly cooling primary gradient and shield coils may be utilized and various coil supporting structures may be used to assist in coil alignment or to facilitate use of an instrument in the MRI gap. | 05-26-2011 |
20110241684 | SPLIT MAGNETIC RESONANCE IMAGING SYSTEM - A magnetic resonance imaging (MRI) system includes a split magnet system having a pair of MRI magnet housings separated by gap. A pair of main MRI magnets are disposed within respective MRI magnet housings. A plurality of buttress assemblies are attached to the MRI magnet housings. Some or all of the buttress assemblies are provided with removable connections to the MRI magnet housings. This allows for partial disassembly of the MRI system for improved transport and maneuverability for relocating the MRI system. The MRI system can include a gantry in the gap for supporting a radiation therapy system. Also, the removably buttress assemblies can be used for housing conduits, such as electrical and fluid conduits, between the pair of MRI magnet housings. | 10-06-2011 |
20120241631 | SPLIT GRADIENT COIL AND PET/MTI HYBRID SYSTEM USING THE SAME - A generally cylindrical set of coil windings includes primary coil windings and shield coil windings at a larger radial position than the primary coil windings, and an arcuate or annular central gap that is free of coil windings, has an axial extent of at least ten centimeters, and spans at least a 180° angular interval. Connecting conductors disposed at each edge of the central gap electrically connect selected primary and secondary coil windings. In a scanner setting, a main magnet is disposed outside of the generally cylindrical set of coil windings. In a hybrid scanner setting, an annular ring of positron emission tomography (PET) detectors is disposed in the central gap of the generally cylindrical set of coil windings. | 09-27-2012 |
20140062486 | SPLIT GRADIENT COIL AND HYBRID SYSTEMS USING SAME - A generally cylindrical set of coil windings includes primary coil windings and shield coil windings at a larger radial position than the primary coil windings, and an arcuate or annular central gap that is free of coil windings, has an axial extent of at least ten centimeters, and spans at least a 180° angular interval. Connecting conductors disposed at each edge of the central gap electrically connect selected primary and secondary coil windings. In a scanner setting, a main magnet is disposed outside of the generally cylindrical set of coil windings. In a hybrid scanner setting, an annular ring of positron emission tomography (PET) detectors is disposed in the central gap of the generally cylindrical set of coil windings. | 03-06-2014 |
20140347053 | Split Magnetic Resonance Imaging System - A magnetic resonance imaging (MRI) system includes a split magnet system having a pair of MRI magnet housings separated by gap. A pair of main MRI magnets are disposed within respective MRI magnet housings. A plurality of buttress assemblies are attached to the MRI magnet housings. Some or all of the buttress assemblies are provided with removable connections to the MRI magnet housings. This allows for partial disassembly of the MRI system for improved transport and maneuverability for relocating the MRI system. The MRI system can include a gantry in the gap for supporting a radiation therapy system. Also, the removably buttress assemblies can be used for housing conduits, such as electrical and fluid conduits, between the pair of MRI magnet housings. | 11-27-2014 |
20150077118 | Self-Shielded Split Gradient Coil - Gradient coil assemblies for horizontal magnetic resonance imaging systems (MRIs) and methods of their manufacture. Some embodiments may be used with open MRIs and can be used with an instrument placed in the gap of the MRI. In general, concentrations of conductors or radially oriented conductors may be moved away from the gap of the MRI so as to reduce eddy currents that may be induced in any instrument placed within the gap. Systems for directly cooling primary gradient and shield coils may be utilized and various coil supporting structures may be used to assist in coil alignment or to facilitate use of an instrument in the MRI gap. | 03-19-2015 |