Patents by Inventor Gregor Adriany
Gregor Adriany has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20240027558Abstract: Systems and methods for producing an image of a subject with a magnetic resonance imaging (MRI) system. The method includes acquiring first MRI data from the subject using a first coil having a first field of view (FOV), simultaneously with or sequentially with acquiring the first MRI data, acquiring second MRI data from the subject using a second coil having a second FOV that is non-overlapping with the first FOV, and reconstructing images of the subject from the first MRI data and the second MRI data.Type: ApplicationFiled: July 25, 2023Publication date: January 25, 2024Inventors: Silvia Mangia, Shalom Michaeli, Djaudat Idiyatullin, Gregor Adriany, Mikko Kettunen, Michael Garwood, Olli Gröhn
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Patent number: 11543475Abstract: An antenna apparatus for a radio frequency (RF) coil to transmit signals to and to receive signal from a subject in a magnetic resonance imaging (MRI) system includes a distal surface facing away from the subject, a proximal surface facing towards the subject, a high permittivity material (HPM) having a shape, and an antenna coupled to the HPM and positioned on the proximal surface such that the antenna is positioned between the HPM and the subject.Type: GrantFiled: April 27, 2020Date of Patent: January 3, 2023Assignee: REGENTS OF THE UNIVERSITY OF MINNESOTAInventors: Myung Kyun Woo, Gregor Adriany, Kamil Ugurbil, Russell L. Lagore, Lance DelaBarre, Jerahmie Radder
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Patent number: 11448714Abstract: A multi-planar intraoral radio frequency (RF) coil apparatus for use in a magnetic resonance imaging system can include a housing having a shape configured to be positioned in an occlusal plane between an upper jaw and a lower jaw of a subject and a plurality of coil elements disposed within the housing. The plurality of coil elements includes a first coil element positioned in a first plane and a second coil element positioned in a second plane different from the first plane and substantially parallel to the first plane. The coil elements can be loop coil elements or dipole coil elements.Type: GrantFiled: July 20, 2020Date of Patent: September 20, 2022Assignee: REGENTS OF THE UNIVERSITY OF MINNESOTAInventors: Donald Robert Nixdorf, Ali Caglar Ozen, Djaudat Idiyatullin, Gregor Adriany
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Patent number: 10901053Abstract: Systems and method for measuring and mitigating radio frequency (“RF”) induced currents on electrical leads, electrodes, and other electrically conductive objects present in the bore of a magnetic resonance imaging (“MRI”) scanner when the MRI scanner is operated to image an object or subject are described. The methods described in the present disclosure can be implemented as a pre-scan procedure to obtain images from which the current induced on the electrical lead can be estimated. This information can then be used to adjust the RF excitation used in a subsequent pulse sequence to mitigate induced currents and reduce heating in the lead. As such, the methods described in the present disclosure provide for improved patient safety.Type: GrantFiled: March 26, 2019Date of Patent: January 26, 2021Assignee: Regents of the University of MinnesotaInventors: Yigitcan Eryaman, Gregor Adriany, Noam Harel, Gregory F. Molnar
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Publication number: 20210018579Abstract: A multi-planar intraoral radio frequency (RF) coil apparatus for use in a magnetic resonance imaging system can include a housing having a shape configured to be positioned in an occlusal plane between an upper jaw and a lower jaw of a subject and a plurality of coil elements disposed within the housing. The plurality of coil elements includes a first coil element positioned in a first plane and a second coil element positioned in a second plane different from the first plane and substantially parallel to the first plane. The coil elements can be loop coil elements or dipole coil elements.Type: ApplicationFiled: July 20, 2020Publication date: January 21, 2021Inventors: Donald Robert Nixdorf, Ali Caglar Ozen, Djaudat Idiyatullin, Gregor Adriany
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Publication number: 20200341082Abstract: An antenna apparatus for a radio frequency (RF) coil to transmit signals to and to receive signal from a subject in a magnetic resonance imaging (MRI) system includes a distal surface facing away from the subject, a proximal surface facing towards the subject, a high permittivity material (HPM) having a shape, and an antenna coupled to the HPM and positioned on the proximal surface such that the antenna is positioned between the HPM and the subject.Type: ApplicationFiled: April 27, 2020Publication date: October 29, 2020Inventors: Myung Kyun Woo, Gregor Adriany, Kamil Ugurbil, Russell L. Lagore, Lance DelaBarre, Jerahmie Radder
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Publication number: 20190293737Abstract: Systems and method for measuring and mitigating radio frequency (“RF”) induced currents on electrical leads, electrodes, and other electrically conductive objects present in the bore of a magnetic resonance imaging (“MRI”) scanner when the MRI scanner is operated to image an object or subject are described. The methods described in the present disclosure can be implemented as a pre-scan procedure to obtain images from which the current induced on the electrical lead can be estimated. This information can then be used to adjust the RF excitation used in a subsequent pulse sequence to mitigate induced currents and reduce heating in the lead. As such, the methods described in the present disclosure provide for improved patient safety.Type: ApplicationFiled: March 26, 2019Publication date: September 26, 2019Inventors: Yigitcan Eryaman, Gregor Adriany, Noam Harel, Gregory F. Molnar
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Patent number: 9541615Abstract: 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 (B0) extends across a first and second region of interest (ROI). A local radio frequency (RF) coil, shaped like a dental arch, is positioned proximate to the ROIs, the ROIs being the upper and lower jaw of a subject. The RF coil and the subject are oriented in the static magnetic field (B0) to align an axis extending through a loop of the coil with the B0 direction of the static magnetic field extending across the ROIs. A pulse sequence is then performed with the MRI system and the RF coil to acquire imaging data from the ROIs simultaneously while using a transverse component of an excitation field (B1). The image data is reconstructed to create an image of the ROIs.Type: GrantFiled: January 24, 2014Date of Patent: January 10, 2017Assignee: Regents of the University of MinnesotaInventors: Djaudat Idiyatullin, Curt Corum, Michael Garwood, Donald Nixdorf, Gregor Adriany
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Publication number: 20140213888Abstract: 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 (B0) extends across a first and second region of interest (ROI). A local radio frequency (RF) coil, shaped like a dental arch, is positioned proximate to the ROls, the ROls being the upper and lower jaw of a subject. The RF coil and the subject are oriented in the static magnetic field (B0) to align an axis extending through a loop of the coil with the B0 direction of the static magnetic field extending across the ROls. A pulse sequence is then performed with the MRI system and the RF coil to acquire imaging data from the ROls simultaneously while using a transverse component of an excitation field (B1). The image data is reconstructed to create an image of the ROls.Type: ApplicationFiled: January 24, 2014Publication date: July 31, 2014Inventors: Djaudat Idiyatullin, Curt Corum, Michael Garwood, Donald Nixdorf, Gregor Adriany
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Patent number: 7893693Abstract: An apparatus comprises a radio frequency magnetic field unit to generate a desired magnetic field. In one embodiment, the radio frequency magnetic field unit includes a first aperture that is substantially unobstructed and a second aperture contiguous to the first aperture. In an alternative embodiment, the radio frequency magnetic field unit includes a first side aperture, a second side aperture and one or more end apertures. In one embodiment of a method, a current element is removed from a radio frequency magnetic field unit to form a magnetic field unit having an aperture. In an alternative embodiment, two current elements located opposite from one another in a radio frequency magnetic field unit are removed to form a magnetic filed unit having a first side aperture and a second side aperture.Type: GrantFiled: May 1, 2006Date of Patent: February 22, 2011Assignee: Regents of the University of MinnesotaInventors: J. Thomas Vaughan, Gregor Adriany, Kamil Ugurbil
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Patent number: 7710117Abstract: A current unit having two or more current paths allows control of magnitude, phase, time, frequency and position of each of element in a radio frequency coil. For each current element, the current can be adjusted as to a phase angle, frequency and magnitude. Multiple current paths of a current unit can be used for targeting multiple spatial domains or strategic combinations of the fields generated/detected by combination of elements for targeting a single domain in magnitude, phase, time, space and frequency.Type: GrantFiled: September 20, 2007Date of Patent: May 4, 2010Assignee: Regents of the University of MinnesotaInventors: J. Thomas Vaughan, Gregor Adriany, Carl Snyder, Can E. Akgun, Jinfeng Tian, Kamil Ugurbil, Pierre-Francois Van de Moortele, Steen Moeller
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Patent number: 7598739Abstract: 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 gradient and to provide radio frequency shimming. Each current element is driven by a separate channel of a transmitter and connected to a separate channel of a multi-channel receiver. The impedance, and therefore, the current, in each current element is controlled mechanically or electrically.Type: GrantFiled: April 21, 2003Date of Patent: October 6, 2009Assignee: Regents of the University of MinnesotaInventors: John Thomas Vaughan, Jr., Kamil Ugurbil, Gregor Adriany
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Patent number: 7514926Abstract: This document discusses, among other things, a system and method for a coil having a plurality of resonant elements and an adjustable frame. A position of at least one resonant element can be adjusted relative to at least one other resonant element. A variable impedance is coupled to adjacent resonant elements and the impedance varies as a function of a separation distance. Cables are coupled to each resonant element and are gathered at a junction in a particular manner.Type: GrantFiled: November 14, 2006Date of Patent: April 7, 2009Assignee: Regents of the University of MinnesotaInventors: Gregor Adriany, Pierre-Francois Van de Moortele, Johannes Ritter, William Voje, J. Thomas Vaughan, Kamil Ugurbil
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Publication number: 20080129298Abstract: This document discloses, among other things, multi-channel magnetic resonance using a TEM coil.Type: ApplicationFiled: February 17, 2007Publication date: June 5, 2008Inventors: J. Vaughan, Pierre-Francois Moortele, Lance DelaBarre, Christopher Olson, Heather Orser, Anand Gopinath, Kamil Ugurbil, Carl Snyder, Gregor Adriany, Can Akgun, Jinfeng Tian, John Strupp, Peter Andersen, Xiaoping Wu
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Publication number: 20080084210Abstract: A current unit having two or more current paths allows control of magnitude, phase, time, frequency and position of each of element in a radio frequency coil. For each current element, the current can be adjusted as to a phase angle, frequency and magnitude. Multiple current paths of a current unit can be used for targeting multiple spatial domains or strategic combinations of the fields generated/detected by combination of elements for targeting a single domain in magnitude, phase, time, space and frequency.Type: ApplicationFiled: September 20, 2007Publication date: April 10, 2008Applicant: REGENTS OF THE UNIVERSITY OF MINNESOTAInventors: J. Vaughan, Gregor Adriany, Carl Snyder, Can Akgun, Jinfeng Tian, Kamil Ugurbil, Pierre-Francois Van de Moortele, Steen Moeller
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Publication number: 20070108980Abstract: This document discusses, among other things, a system and method for a coil having a plurality of resonant elements and an adjustable frame. A position of at least one resonant element can be adjusted relative to at least one other resonant element. A variable impedance is coupled to adjacent resonant elements and the impedance varies as a function of a separation distance. Cables are coupled to each resonant element and are gathered at a junction in a particular manner.Type: ApplicationFiled: November 14, 2006Publication date: May 17, 2007Inventors: Gregor Adriany, Pierre-Francois Van de Moortele, Johannes Ritter, William Voje, J. Vaughan, Kamil Ugurbil
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Publication number: 20060255806Abstract: An apparatus comprises a radio frequency magnetic field unit to generate a desired magnetic field. In one embodiment, the radio frequency magnetic field unit includes a first aperture that is substantially unobstructed and a second aperture contiguous to the first aperture. In an alternative embodiment, the radio frequency magnetic field unit includes a first side aperture, a second side aperture and one or more end apertures. In one embodiment of a method, a current element is removed from a radio frequency magnetic field unit to form a magnetic field unit having an aperture. In an alternative embodiment, two current elements located opposite from one another in a radio frequency magnetic field unit are removed to form a magnetic filed unit having a first side aperture and a second side aperture.Type: ApplicationFiled: May 1, 2006Publication date: November 16, 2006Inventors: J. Vaughan, Gregor Adriany, Kamil Ugurbil
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Publication number: 20060001426Abstract: An apparatus comprises a radio frequency magnetic field unit to generate a desired magnetic field. In one embodiment, the radio frequency magnetic field unit includes a first aperture that is substantially unobstructed and a second aperture contiguous to the first aperture. In an alternative embodiment, the radio frequency magnetic field unit includes a first side aperture, a second side aperture and one or more end apertures. In one embodiment of a method, a current element is removed from a radio frequency magnetic field unit to form a magnetic field unit having an aperture. In an alternative embodiment, two current elements located opposite from one another in a radio frequency magnetic field unit are removed to form a magnetic filed unit having a first side aperture and a second side aperture.Type: ApplicationFiled: August 23, 2005Publication date: January 5, 2006Inventors: J. Vaughan, Gregor Adriany, Kamil Ugurbil
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Publication number: 20050264291Abstract: A current unit having two or more current paths allows control of magnitude, phase, time, frequency and position of each of element in a radio frequency coil. For each current element, the current can be adjusted as to a phase angle, frequency and magnitude. Multiple current paths of a current unit can be used for targeting multiple spatial domains or strategic combinations of the fields generated/detected by combination of elements for targeting a single domain in magnitude, phase, time, space and frequency.Type: ApplicationFiled: May 6, 2005Publication date: December 1, 2005Inventors: J. Vaughan, Gregor Adriany, Carl Snyder, Can Akgun, Jinfeng Tian, Kamil Ugurbil, Pierre-Francois Moortele, Steen Moeller
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Patent number: RE47026Abstract: A magnetic resonance system is disclosed. The system includes a transceiver having a multichannel receiver and a multichannel transmitter, where each channel of the transmitter is configured for independent selection of frequency, phase, time, space, and magnitude, and each channel of the receiver is configured for independent selection of space, time, frequency, phase and gain. The system also includes a magnetic resonance coil having a plurality of current elements, with each element coupled in one to one relation with a channel of the receiver and a channel of the transmitter. The system further includes a processor coupled to the transceiver, such that the processor is configured to execute instructions to control a current in each element and to perform a non-linear algorithm to shim the coil.Type: GrantFiled: September 20, 2012Date of Patent: September 4, 2018Assignee: Regents of the University of MinnesotaInventors: J Thomas Vaughan, Pierre-Francois Van de Moortele, Lance DelaBarre, Chris E Olson, Heather Orser, Anand Gopinath, Kamil Ugurbil, Carl Snyder, Gregor Adriany, Can Akgun, Jinfeng Tian, John Strupp, Peter M Andersen