Patents by Inventor Jicun Hu

Jicun Hu 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).

  • Publication number: 20220148236
    Abstract: An image reconstruction system generates a motion estimation using images that have been reconstructed using AI processing. The system receives listmode data collected by an imaging system and produces two or more histo-images based on the listmode data. The system provides the two or more histo-images to an AI system and receives two or more AI reconstructed images back from the AI system based on the two or more histo-images. The system generates a motion estimation based on the two or more AI reconstructed images.
    Type: Application
    Filed: November 9, 2020
    Publication date: May 12, 2022
    Inventors: Deepak Bharkhada, Chuanyu Zhou, Vladimir Panin, William Whiteley, Jicun Hu, Michael E. Casey
  • Publication number: 20220130079
    Abstract: An image reconstruction system generates de-noised, attenuation corrected, and scatter corrected images using AI processing. The system receives a low-dose PET image and applies a machine learning algorithm via a convolutional neural network to the low-dose PET image to generate an output image. The output image includes correction for scatter and attenuation associated with the image being low-dose. The system provides the output image to a computing device comprising a user interface.
    Type: Application
    Filed: October 23, 2020
    Publication date: April 28, 2022
    Inventors: Jicun Hu, Xiang Zhang, William Whiteley, Chuanyu Zhou, Vladimir Panin
  • Patent number: 11288847
    Abstract: Methods for simulating, and correcting for, doubly scattered annihilation gamma-ray photons in both time-of-flight (TOF) and non-TOF positron emission tomography scan data are disclosed.
    Type: Grant
    Filed: October 10, 2019
    Date of Patent: March 29, 2022
    Assignee: Siemens Medical Solutions USA, Inc.
    Inventors: Charles C. Watson, Jicun Hu, Chuanyu Zhou
  • Patent number: 11222447
    Abstract: A method for parametric image reconstruction and motion correction using whole-body motion fields includes receiving a nuclear imaging data set including a set of dynamic frames and generating at least one of a whole-body forward motion field and/or a whole-body inverse motion field for at least one frame in the set of frames. An iterative loop is applied to update at least one parameter used in a direct parametric reconstruction and at least one parametric image is generated based on the at least one parameter updated by the iterative loop. The iterative loop includes calculating a frame emission image for the at least one frame, generating a motion-corrected frame emission image based on the at least one whole-body forward motion field or a whole-body inverse motion field, and updating at least one parameter by applying a fit to the motion-corrected frame emission image.
    Type: Grant
    Filed: May 6, 2020
    Date of Patent: January 11, 2022
    Assignee: Siemens Medical Solutions USA, Inc.
    Inventors: Jicun Hu, Ludovic Sibille, Bruce Spottiswoode
  • Publication number: 20210405226
    Abstract: Systems and methods to partially-gate PET data include acquisition of first data describing a plurality of coincidences detected during a scan of an object, each of the plurality of coincidences associated with a coincidence time and a line of response, acquisition of a motion signal associated with motion of the object during the scan, determination of lines of response which are associated with a region of the object, determination of time periods of region motion based on the motion signal, modification of the first data to remove coincidences which are associated with the determined lines of response and which are associated with a coincidence time during a time period of region motion, reconstruction of an image of the object based on the modified first data, and display of the image.
    Type: Application
    Filed: May 25, 2021
    Publication date: December 30, 2021
    Inventors: Jicun Hu, Matthew Restivo, Inki Hong, Vladimir Panin, Frank Kehren, Michael E. Casey
  • Publication number: 20210350591
    Abstract: A method for parametric image reconstruction and motion correction using whole-body motion fields includes receiving a nuclear imaging data set including a set of dynamic frames and generating at least one of a whole-body forward motion field and/or a whole-body inverse motion field for at least one frame in the set of frames. An iterative loop is applied to update at least one parameter used in a direct parametric reconstruction and at least one parametric image is generated based on the at least one parameter updated by the iterative loop. The iterative loop includes calculating a frame emission image for the at least one frame, generating a motion-corrected frame emission image based on the at least one whole-body forward motion field or a whole-body inverse motion field, and updating at least one parameter by applying a fit to the motion-corrected frame emission image.
    Type: Application
    Filed: May 6, 2020
    Publication date: November 11, 2021
    Inventors: Jicun Hu, Ludovic Sibille, Bruce Spottiswoode
  • Patent number: 11103199
    Abstract: A method of conducting a multi-pass dynamic positron emission tomography (PET) scans using continuous bed motion (CBM) mode is disclosed where the method involves acquiring PET sinogram data using CBM mode as the patient bed is moving in a first direction; acquiring PET sonogram data using CBM mode as the patient bed is moving in a second direction that is opposite from the first direction; and reconstructing 3-D PET image from the acquired PET sonogram data.
    Type: Grant
    Filed: March 23, 2018
    Date of Patent: August 31, 2021
    Assignee: Siemens Medical Solutions USA, Inc.
    Inventors: Jicun Hu, Vladimir Y. Panin, Anne M. Smith, William Curtis Howe, Vijay Shah, Frank Kehren, Michael E. Casey, Matthew Baker, Bernard Bendriem
  • Patent number: 10762626
    Abstract: A method for reconstructing medical images comprises: identifying a plurality of organs in a body of a subject based on an anatomic image; assigning a plurality of voxels in the body to respective ones of the plurality of organs based on the anatomic image; and reconstructing activity images of the body using respectively different processing for the voxels assigned to each respective one of the plurality of organs.
    Type: Grant
    Filed: October 23, 2018
    Date of Patent: September 1, 2020
    Assignee: Siemens Medical Solutions USA, Inc.
    Inventors: Jicun Hu, Vladimir Y. Panin, Vijay Shah
  • Patent number: 10722189
    Abstract: A method of processing and reconstructing dynamic positron emission tomography (PET) sinogram data comprises: acquiring PET sinogram data using continuous bed motion having a varying velocity; recording a plurality of position-time coordinate pairs while acquiring the PET sinogram data; determining respective acquisition times of each of a plurality of slices of the image, based on the plurality of position-time coordinates; and reconstructing respective parametric images for each respective slice in the plurality of slices.
    Type: Grant
    Filed: August 30, 2017
    Date of Patent: July 28, 2020
    Assignee: Siemens Medical Solutions USA, Inc.
    Inventors: Jicun Hu, Vladimir Y. Panin, Anne M. Smith, William Curtis Howe, Vijay Shah, Frank Kehren, Michael E. Casey, Matthew Baker, Bernard Bendriem
  • Publication number: 20200151918
    Abstract: Methods for simulating, and correcting for, doubly scattered annihilation gamma-ray photons in both time-of-flight (TOF) and non-TOF positron emission tomography scan data are disclosed.
    Type: Application
    Filed: October 10, 2019
    Publication date: May 14, 2020
    Inventors: Charles C. Watson, Jicun Hu, Chuanyu Zhou
  • Publication number: 20200126214
    Abstract: A method for reconstructing medical images comprises: identifying a plurality of organs in a body of a subject based on an anatomic image; assigning a plurality of voxels in the body to respective ones of the plurality of organs based on the anatomic image; and reconstructing activity images of the body using respectively different processing for the voxels assigned to each respective one of the plurality of organs.
    Type: Application
    Filed: October 23, 2018
    Publication date: April 23, 2020
    Inventors: Jicun Hu, Vladimir Y. Panin, Vijay Shah
  • Publication number: 20190059831
    Abstract: A method of processing and reconstructing dynamic positron emission tomography (PET) sinogram data comprises: acquiring PET sinogram data using continuous bed motion having a varying velocity; recording a plurality of position-time coordinate pairs while acquiring the PET sinogram data; determining respective acquisition times of each of a plurality of slices of the image, based on the plurality of position-time coordinates; and reconstructing respective parametric images for each respective slice in the plurality of slices.
    Type: Application
    Filed: August 30, 2017
    Publication date: February 28, 2019
    Inventors: Jicun Hu, Vladimir Y. Panin, Anne M. Smith, William Curtis Howe, Vijay Shah, Frank Kehren, Michael E. Casey, Matthew Baker, Bernard Bendriem
  • Publication number: 20180303438
    Abstract: A method of conducting a multi-pass dynamic positron emission tomography (PET) scans using continuous bed motion (CBM) mode is disclosed where the method involves acquiring PET sinogram data using CBM mode as the patient bed is moving in a first direction; acquiring PET sonogram data using CBM mode as the patient bed is moving in a second direction that is opposite from the first direction; and reconstructing 3-D PET image from the acquired PET sonogram data.
    Type: Application
    Filed: March 23, 2018
    Publication date: October 25, 2018
    Inventors: Jicun Hu, Vladimir Y. Panin, Anne M. Smith, William Curtis Howe, Vijay Shah, Frank Kehren, Michael E. Casey, Matthew Baker, Bernard Bendriem
  • Patent number: 9262844
    Abstract: Methods and systems for processing data for medical imaging are disclosed. The method includes obtaining a set of continuous bed motion (CBM) data from a first imaging modality. The set of CBM data includes a plurality of gating signals. A CBM normalization matrix is calculated. The CBM normalization matrix calculation includes the plurality of gating signals. An image is reconstructed from the CBM data and the CBM normalization matrix. The first imaging modality can be a PET imaging device.
    Type: Grant
    Filed: March 27, 2015
    Date of Patent: February 16, 2016
    Assignee: Siemens Medical Solutions USA, Inc.
    Inventors: Jicun Hu, Vladimir Y. Panin, Frank Kehren, Michael E. Casey
  • Publication number: 20150302613
    Abstract: Methods and systems for processing data for medical imaging are disclosed. The method includes obtaining a set of continuous bed motion (CBM) data from a first imaging modality. The set of CBM data includes a plurality of gating signals. A CBM normalization matrix is calculated. The CBM normalization matrix calculation includes the plurality of gating signals. An image is reconstructed from the CBM data and the CBM normalization matrix. The first imaging modality can be a PET imaging device.
    Type: Application
    Filed: March 27, 2015
    Publication date: October 22, 2015
    Inventors: Jicun Hu, Vladimir Y. Panin, Frank Kehren, Michael E. Casey