Patents by Inventor Jullie W. Pan

Jullie W. Pan 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).

  • Patent number: 11280866
    Abstract: A magnetic resonance imaging method includes performing an inversion pulse sequence using an MRI system, the inversion pulse sequence producing an inversion recovery period, and during the inversion recovery period: (i) performing a longitudinal T2 encoding pulse sequence using the MRI system; (ii) acquiring a post longitudinal T2 encoding pulse sequence image signal block immediately following the longitudinal T2 encoding pulse sequence using the MRI system; and (iii) acquiring an additional image signal block either before the longitudinal T2 encoding pulse sequence or following the acquiring of the post longitudinal T2 encoding pulse sequence image signal block using the MRI system. The method further include generating calculated image data based on at least the post longitudinal T2 encoding pulse sequence image signal block using a self-correcting normalization image combination scheme.
    Type: Grant
    Filed: June 13, 2019
    Date of Patent: March 22, 2022
    Assignee: University of Pittsburgh—Of the Commonwealth System of Higher Education
    Inventors: Jullie W. Pan, Chan-Hong Moon, Hoby Hetherington
  • Publication number: 20210223345
    Abstract: A magnetic resonance imaging method includes performing an inversion pulse sequence using an MRI system, the inversion pulse sequence producing an inversion recovery period, and during the inversion recovery period: (i) performing a longitudinal T2 encoding pulse sequence using the MRI system; (ii) acquiring a post longitudinal T2 encoding pulse sequence image signal block immediately following the longitudinal T2 encoding pulse sequence using the MRI system; and (iii) acquiring an additional image signal block either before the longitudinal T2 encoding pulse sequence or following the acquiring of the post longitudinal T2 encoding pulse sequence image signal block using the MRI system. The method further include generating calculated image data based on at least the post longitudinal T2 encoding pulse sequence image signal block using a self-correcting normalization image combination scheme.
    Type: Application
    Filed: June 13, 2019
    Publication date: July 22, 2021
    Applicant: UNIVERSITY OF PITTSBURGH-OF THE COMMONWEALTH SYSTEM OF HIGHER EDUCATION
    Inventors: JULLIE W. PAN, CHAN-HONG MOON, HOBY HETHERINGTON
  • Patent number: 10698046
    Abstract: There is provided a novel method and circuit of compensating for cross-talk between pairs of adjacent array elements of a transceiver phased array and double-tuned transceiver arrays for a magnetic resonance system using a resonant inductive decoupling circuit. The geometry and size of the resonant inductive decoupling circuit allows for the decoupling circuit to compensate for the cross-talk between array elements, including the reactive and resistive components of the mutual impedance while being sufficiently small to not distort a RF magnetic field of the array elements produced within a sample.
    Type: Grant
    Filed: March 25, 2019
    Date of Patent: June 30, 2020
    Assignee: Transarray LLC
    Inventors: Nikolai I. Avdievich, Hoby P. Hetherington, Jullie W. Pan
  • Publication number: 20190277929
    Abstract: There is provided a novel method and circuit of compensating for cross-talk between pairs of adjacent array elements of a transceiver phased array and double-tuned transceiver arrays for a magnetic resonance system using a resonant inductive decoupling circuit. The geometry and size of the resonant inductive decoupling circuit allows for the decoupling circuit to compensate for the cross-talk between array elements, including the reactive and resistive components of the mutual impedance while being sufficiently small to not distort a RF magnetic field of the array elements produced within a sample.
    Type: Application
    Filed: March 25, 2019
    Publication date: September 12, 2019
    Inventors: Nikolai I. Avdievich, Hoby P. Hetherington, Jullie W. Pan
  • Patent number: 10274559
    Abstract: There is provided a novel method and circuit of compensating for cross-talk between pairs of adjacent array elements of a transceiver phased array and double-tuned transceiver arrays for a magnetic resonance system using a resonant inductive decoupling circuit. The geometry and size of the resonant inductive decoupling circuit allows for the decoupling circuit to compensate for the cross-talk between array elements, including the reactive and resistive components of the mutual impedance while being sufficiently small to not distort a RF magnetic field of the array elements produced within a sample.
    Type: Grant
    Filed: February 5, 2018
    Date of Patent: April 30, 2019
    Assignee: Transarray LLC
    Inventors: Nikolai I. Avdievich, Hoby P. Hetherington, Jullie W. Pan
  • Publication number: 20180238977
    Abstract: There is provided a novel method and circuit of compensating for cross-talk between pairs of adjacent array elements of a transceiver phased array and double-tuned transceiver arrays for a magnetic resonance system using a resonant inductive decoupling circuit. The geometry and size of the resonant inductive decoupling circuit allows for the decoupling circuit to compensate for the cross-talk between array elements, including the reactive and resistive components of the mutual impedance while being sufficiently small to not distort a RF magnetic field of the array elements produced within a sample.
    Type: Application
    Filed: February 5, 2018
    Publication date: August 23, 2018
    Inventors: Nikolai I. Avdievich, Hoby P. Hetherington, Jullie W. Pan
  • Patent number: 9885766
    Abstract: There is provided a novel method and circuit of compensating for cross-talk between pairs of adjacent array elements of a transceiver phased array and double-tuned transceiver arrays for a magnetic resonance system using a resonant inductive decoupling circuit. The geometry and size of the resonant inductive decoupling circuit allows for the decoupling circuit to compensate for the cross-talk between array elements, including the reactive and resistive components of the mutual impedance while being sufficiently small to not distort a RF magnetic field of the array elements produced within a sample.
    Type: Grant
    Filed: April 17, 2013
    Date of Patent: February 6, 2018
    Assignee: Transarray LLC
    Inventors: Nikolai I. Avdievich, Hoby P. Hetherington, Jullie W. Pan
  • Patent number: 9316709
    Abstract: The inventive subject matter as a whole is an improved transceiver apparatus and system for diagnostic evaluations of living subject, human or animal; and is particularly effective as a clinical tool for the spectroscopic scanning or magnetic resonance imaging of humans suspected of being afflicted with a particular disease, disorder, or pathology. The improved transceiver apparatus is used as an essential component in a computer controlled system suitable for magnetic resonance imaging (“MRI”), or nuclear magnetic resonance spectroscopy (“MRS”), and/or nuclear magnetic resonance spectroscopic imaging (“MRSI”); and the present improvement of these electromagnetic signaling systems will provide far more accurate and precise visual images and accumulated data for the clinician or surgeon, as well as serve as a basis upon which to make a diagnosis and decide upon a mode of therapeutic treatment for that individual.
    Type: Grant
    Filed: August 18, 2011
    Date of Patent: April 19, 2016
    Inventors: Hoby P. Hetherington, Jullie W. Pan, Nikolai I. Avdievich
  • Patent number: 9081066
    Abstract: The present invention is a method and apparatus for generating an effective equivalent of a simultaneous transmission of excitation signals to a targeted living tissue using an existing MRI system assembly or transceiver apparatus which structurally has a small number of independent transmit channels in operative communication with a large number of individual transmission RF coils. The inventive methodology and apparatus is suitable for use with any conventionally known and used transceiver apparatus which operationally complies with the requisite difference existing between the lesser available numbers of independent transmission channels and the greater number of individual transmit RF coils. For this reason, the methodology is broadly and generally useful for many different applications of magnetic resonance imaging technology.
    Type: Grant
    Filed: January 17, 2012
    Date of Patent: July 14, 2015
    Inventors: Hoby P. Hetherington, Jullie W. Pan
  • Publication number: 20130271144
    Abstract: There is provided a novel method and circuit of compensating for cross-talk between pairs of adjacent array elements of a transceiver phased array and double-tuned transceiver arrays for a magnetic resonance system using a resonant inductive decoupling circuit. The geometry and size of the resonant inductive decoupling circuit allows for the decoupling circuit to compensate for the cross-talk between array elements, including the reactive and resistive components of the mutual impedance while being sufficiently small to not distort a RF magnetic field of the array elements produced within a sample.
    Type: Application
    Filed: April 17, 2013
    Publication date: October 17, 2013
    Applicant: Transarray LLC
    Inventors: Nikolai I. Avdievich, Hoby P. Hetherington, Jullie W. Pan
  • Publication number: 20120223706
    Abstract: The present invention is a method and apparatus for generating an effective equivalent of a simultaneous transmission of excitation signals to a targeted living tissue using an existing MRI system assembly or transceiver apparatus which structurally has a small number of independent transmit channels in operative communication with a large number of individual transmission RF coils. The inventive methodology and apparatus is suitable for use with any conventionally known and used transceiver apparatus which operationally complies with the requisite difference existing between the lesser available numbers of independent transmission channels and the greater number of individual transmit RF coils. For this reason, the methodology is broadly and generally useful for many different applications of magnetic resonance imaging technology.
    Type: Application
    Filed: January 17, 2012
    Publication date: September 6, 2012
    Inventors: Hoby P. Hetherington, Jullie W. Pan
  • Publication number: 20120112748
    Abstract: The inventive subject matter as a whole is an improved transceiver apparatus and system for diagnostic evaluations of living subject, human or animal; and is particularly effective as a clinical tool for the spectroscopic scanning or magnetic resonance imaging of humans suspected of being afflicted with a particular disease, disorder, or pathology. The improved transceiver apparatus is used as an essential component in a computer controlled system suitable for magnetic resonance imaging (“MRI”), or nuclear magnetic resonance spectroscopy (“MRS”), and/or nuclear magnetic resonance spectroscopic imaging (“MRSI”); and the present improvement of these electromagnetic signaling systems will provide far more accurate and precise visual images and accumulated data for the clinician or surgeon, as well as serve as a basis upon which to make a diagnosis and decide upon a mode of therapeutic treatment for that individual.
    Type: Application
    Filed: August 18, 2011
    Publication date: May 10, 2012
    Inventors: Hoby P. Hetherington, Jullie W. Pan, Nikolai I. Avdievich
  • Patent number: 7609060
    Abstract: For the brain, a variety of automated non-iterative shimming methods using phase evolution derived B0 maps have been reported. These methods assume that there is only a single chemical species contributing to the image. Although true in the brain, lipid contributions from skin, bone marrow and structural fat, may approach or exceed the concentration of water in other organs. In these instances, standard B0 mapping methods cannot be used due to contributions arising from the lipids. To overcome these limitations the present invention discloses a multi-point B0 mapping method combined with Dixon imaging to provide fully automated shimming of the human calf.
    Type: Grant
    Filed: April 3, 2008
    Date of Patent: October 27, 2009
    Assignee: Albert Einstein College of Medicine of Yeshiva University
    Inventors: Hoby P. Hetherington, Jullie W. Pan
  • Publication number: 20080258725
    Abstract: For the brain, a variety of automated non-iterative shimming methods using phase evolution derived B0 maps have been reported. These methods assume that there is only a single chemical species contributing to the image. Although true in the brain, lipid contributions from skin, bone marrow and structural fat, may approach or exceed the concentration of water in other organs. In these instances, standard B0 mapping methods cannot be used due to contributions arising from the lipids. To overcome these limitations the present invention discloses a multi-point B0 mapping method combined with Dixon imaging to provide fully automated shimming of the human calf.
    Type: Application
    Filed: April 3, 2008
    Publication date: October 23, 2008
    Inventors: Hoby P. Hetherington, Jullie W. Pan