Patents by Inventor Chuanyong Bai

Chuanyong Bai 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: 11877882
    Abstract: A device (10) for measuring respiration of a patient includes a positron emission tomography (PET) or single photon emission computed tomography (SPECT) imaging device (12). At least one electronic processor (16) is programmed to: extract a first respiration data signal (32) from emission imaging data of a patient acquired by the PET or SPECT imaging device; extract a second respiration data signal (36) from a photoplethysmograph (PPG) signal of the patient; and combine the first and second extracted respiration data signals to generate a respiration signal (40) indicative of respiration of the patient.
    Type: Grant
    Filed: April 17, 2018
    Date of Patent: January 23, 2024
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Kushal Shah, Andriy Andreyev, Shushen Lin, Bin Zhang, Chuanyong Bai
  • Patent number: 11854123
    Abstract: Disclosed herein is an imaging system including a first x-ray source configured to produce first x-ray photons in a first energy range suitable for imaging, project the first x-ray photons onto an area designated for imaging, a rotatable gantry configured to rotate the first x-ray source such that the first x-ray source traverses an angular path, and a data processor having an analytical portion. The analytical portion is configured to collect first data relating to the transmission of the first x-ray photons through the area designated for imaging at a set of image-collection angles along the angular path, collect background data at a set of background-collection angles along the angular path, wherein the system acquires more than one image of the designated area for imaging between background angles. The analytical portion is also configured to remove errors in the first data using the background data, and generate a corrected image based on the removal of errors in the first data.
    Type: Grant
    Filed: July 23, 2021
    Date of Patent: December 26, 2023
    Assignee: Accuray, Inc.
    Inventors: Chuanyong Bai, Robert Zahn, Daniel Gagnon, Amit Jain, Zhicong Yu, Georgios Prekas
  • Patent number: 11813101
    Abstract: A spectral computed tomography imaging system (102) includes a radiation source (112) configured to emit x-ray radiation and a detector array (114) configured to detect x-ray radiation and generate spectral data. The spectral imaging system further includes a memory (134) configured to store a virtual non-contrast image enhancing module (136) that includes computer executable instructions including a neural network trained to produce image quality enhanced virtual non-contrast images. The neural network is trained with training spectral data and training non-contrast-enhanced images generated from a non-contrast-enhanced scan. The spectral imaging system further includes a processor (132) configured to process the spectral data with the trained neural network to produce the image quality enhanced virtual non-contrast images.
    Type: Grant
    Filed: January 30, 2019
    Date of Patent: November 14, 2023
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Hao Dang, Shiyu Xu, Chuanyong Bai, Hui Wang, Douglas B. McKnight
  • Patent number: 11806182
    Abstract: A device (10) for performing an amyloid assessment includes a radiation detector assembly (12) including at least one radiation detector (14). At least one electronic processor (20) is programmed to: detect radiation counts over a data acquisition time interval using the radiation detector assembly; compute at least one current count metric from the detected radiation counts; store the at least one current count metric associated with a current test date in a non-transitory storage medium (26); and determine an amyloid metric based on a comparison of the at least one current count metric with a count metric stored in the non-transitory storage medium associated with an earlier test date.
    Type: Grant
    Filed: August 13, 2019
    Date of Patent: November 7, 2023
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Andriy Andreyev, Douglas B. McKnight, Nathan Serafino, Dane Pittock, Chuanyong Bai, Chi-Hua Tung
  • Patent number: 11798205
    Abstract: A non-transitory computer-readable medium stores instructions readable and executable by a workstation (18) including at least one electronic processor (20) to perform an image reconstruction method (100). The method includes: determining a weighting parameter (13) of an edge-preserving regularization or penalty of a regularized image reconstruction of an image acquisition device (12) for an imaging data set obtained by the image acquisition device; determining an edge sensitivity parameter (?) of the edge-preserving algorithm for the imaging data set obtained by the image acquisition device; and reconstructing the imaging data set obtained by the image acquisition device to generate a reconstructed image by applying the regularized image reconstruction including the edge-preserving regularization or penalty with the determined weighting and edge sensitivity parameters to the imaging data set obtained by the image acquisition device.
    Type: Grant
    Filed: January 2, 2019
    Date of Patent: October 24, 2023
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Chuanyong Bai, Andriy Andreyev, Bin Zhang, James Gurian, Zhiqiang Hu, Yu-Lung Hsieh, Shekhar Dwivedi, Jinghan Ye, Xiyun Song, Michael Allen Miller
  • Patent number: 11794039
    Abstract: An imaging apparatus comprises a rotatable gantry system positioned at least partially around a patient support; a first source of radiation coupled to the rotatable gantry system, the first source of radiation configured for imaging radiation; a second source of radiation coupled to the rotatable gantry system; and a first radiation detector coupled to the rotatable gantry system and laterally movable relative to a central beam of the first source of radiation to receive radiation from at least the first source of radiation over various fields of view. Alternative configurations of the imaging apparatus and methods of using the imaging apparatus are also provided.
    Type: Grant
    Filed: July 13, 2021
    Date of Patent: October 24, 2023
    Assignee: Accuray, Inc.
    Inventors: Chuanyong Bai, Zhicong Yu, Chuang Miao
  • Patent number: 11748598
    Abstract: An imaging method (100) includes: acquiring first training images of one or more imaging subjects using a first image acquisition device (12); acquiring second training images of the same one or more imaging subjects as the first training images using a second image acquisition device (14) of the same imaging modality as the first imaging device; and training a neural network (NN) (16) to transform the first training images into transformed first training images having a minimized value of a difference metric comparing the transformed first training images and the second training images.
    Type: Grant
    Filed: October 16, 2018
    Date of Patent: September 5, 2023
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Chuanyong Bai, Yang-Ming Zhu, Andriy Andreyev, Bin Zhang, Chi-Hua Tung
  • Publication number: 20230248329
    Abstract: Saturation in at least one saturated ray is in a method including identifying a saturated ray corresponding to a first ray of a radiation source received at a radiation detector after passing through a reference point during a current view of the radiation detector, identifying at least one non-saturated ray corresponding to a second ray of the radiation source received at the radiation detector, and responsive to the identifying, adjusting a value for the saturated ray based on a value of the at least one non-saturated ray. The non-saturated ray can be a ray from an adjacent view of a current rotation, an adjacent view of a previous or subsequent rotation, or a conjugate ray. Methods of selecting a gain level to avoid saturation are also disclosed.
    Type: Application
    Filed: February 7, 2022
    Publication date: August 10, 2023
    Applicant: Accuray Inc.
    Inventors: Zhicong Yu, Amit Jain, Daniel Gagnon, Chuanyong Bai, Marc Chappo
  • Publication number: 20230172573
    Abstract: A non-spectral computed tomography scanner includes a radiation source configured to emit x-ray radiation, a detector array configured to detect x-ray radiation and generate non-spectral data, and a memory configured to store a spectral image module that includes computer executable instructions including a neural network trained to produce spectral volumetric image data. The neural network is trained with training spectral volumetric image data and training non-spectral data. The non-spectral computed tomography scanner further includes a processor configured to process the non-spectral data with the trained neural network to produce spectral volumetric image data.
    Type: Application
    Filed: November 2, 2022
    Publication date: June 8, 2023
    Inventors: CHUANYONG BAI, YANG-MING ZHU, SHENG LU, SHIYU XU, HAO DANG, HAO LAI, DOUGLAS MCKNIGHT, HUI WANG
  • Patent number: 11638568
    Abstract: An x-ray imaging apparatus and associated methods are provided to execute multi-pass imaging scans for improved quality and workflow. An imaging scan can be segmented into multiple passes that are faster than the full imaging scan. Data received by an initial scan pass can be utilized early in the workflow and of sufficient quality for treatment setup, including while the another scan pass is executed to generate data needed for higher quality images, which may be needed for treatment planning. In one embodiment, a data acquisition and reconstruction technique is used when the detector is offset in the channel and/or axial direction for a large FOV during multiple passes.
    Type: Grant
    Filed: May 2, 2022
    Date of Patent: May 2, 2023
    Assignee: Accuray, Inc.
    Inventors: Daniel Gagnon, Chuanyong Bai, Zhicong Yu
  • Patent number: 11605186
    Abstract: A radiological imaging apparatus is provided that includes a radiation source for emitting radiation, a radiation detector positioned to receive radiation emitted by the radiation source and generate radiation data, wherein the radiation data comprises a primary component and a secondary component, and a data processing system. The data processing system is configured to apply image transforms to the primary component using generating functions, build a scatter model basis using the transforms, adjust parameters in the scatter model to fit scatter using the scatter model basis, generate an estimated scatter image by using the fitted scatter model, and modify the radiation data using the scatter image to decrease the scatter in the radiation data thereby generating a scatter corrected image.
    Type: Grant
    Filed: June 30, 2021
    Date of Patent: March 14, 2023
    Assignee: Accuray, Inc.
    Inventors: Jacob Shea, Chuanyong Bai
  • Patent number: 11576628
    Abstract: Emission imaging data are reconstructed to generate a low dose reconstructed image. Standardized uptake value (SUV) conversion (30) is applied to convert the low dose reconstructed image to a low dose SUV image. A neural network (46, 48) is applied to the low dose SUV image to generate an estimated full dose SUV image. Prior to applying the neural network the low dose reconstructed image or the low dose SUV image is filtered using a low pass filter (32). The neural network is trained on a set of training low dose SUV images and corresponding training full dose SUV images to transform the training low dose SUV images to match the corresponding training full dose SUV images, using a loss function having a mean square error loss component (34) and a loss component (36) that penalizes loss of image texture and/or a loss component (38) that promotes edge preservation.
    Type: Grant
    Filed: December 26, 2018
    Date of Patent: February 14, 2023
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Sydney Kaplan, Yang-Ming Zhu, Andriy Andreyev, Chuanyong Bai, Steven Michael Cochoff
  • Publication number: 20230026441
    Abstract: Disclosed herein is an imaging system including a first x-ray source configured to produce first x-ray photons in a first energy range suitable for imaging, project the first x-ray photons onto an area designated for imaging, a rotatable gantry configured to rotate the first x-ray source such that the first x-ray source traverses an angular path, and a data processor having an analytical portion. The analytical portion is configured to collect first data relating to the transmission of the first x-ray photons through the area designated for imaging at a set of image-collection angles along the angular path, collect background data at a set of background-collection angles along the angular path, wherein the system acquires more than one image of the designated area for imaging between background angles. The analytical portion is also configured to remove errors in the first data using the background data, and generate a corrected image based on the removal of errors in the first data.
    Type: Application
    Filed: July 23, 2021
    Publication date: January 26, 2023
    Inventors: Chuanyong Bai, Robert Zahn, Daniel Gagnon, Amit Jain, Zhicong Yu, Georgios Prekas
  • Publication number: 20230017353
    Abstract: An imaging apparatus comprises a rotatable gantry system positioned at least partially around a patient support; a first source of radiation coupled to the rotatable gantry system, the first source of radiation configured for imaging radiation; a second source of radiation coupled to the rotatable gantry system; and a first radiation detector coupled to the rotatable gantry system and laterally movable relative to a central beam of the first source of radiation to receive radiation from at least the first source of radiation over various fields of view. Alternative configurations of the imaging apparatus and methods of using the imaging apparatus are also provided.
    Type: Application
    Filed: July 13, 2021
    Publication date: January 19, 2023
    Applicant: Accuray, Inc.
    Inventors: Chuanyong Bai, Zhicong Yu, Chuang Miao
  • Publication number: 20230013818
    Abstract: A radiological imaging apparatus is provided that includes a radiation source for emitting radiation, a radiation detector positioned to receive radiation emitted by the radiation source and generate radiation data, wherein the radiation data comprises a primary component and a secondary component, and a data processing system. The data processing system is configured to apply image transforms to the primary component using generating functions, build a scatter model basis using the transforms, adjust parameters in the scatter model to fit scatter using the scatter model basis, generate an estimated scatter image by using the fitted scatter model, and modify the radiation data using the scatter image to decrease the scatter in the radiation data thereby generating a scatter corrected image.
    Type: Application
    Filed: June 30, 2021
    Publication date: January 19, 2023
    Inventors: Jacob Shea, Chuanyong Bai
  • Patent number: 11510641
    Abstract: A non-spectral computed tomography scanner (102) includes a radiation source (112) configured to emit x-ray radiation, a detector array (114) configured to detect x-ray radiation and generate non-spectral data, and a memory (134) configured to store a spectral image module (130) that includes computer executable instructions including a neural network trained to produce spectral volumetric image data. The neural network is trained with training spectral volumetric image data and training non-spectral data. The non-spectral computed tomography scanner further includes a processor (126) configured to process the non-spectral data with the trained neural network to produce spectral volumetric image data.
    Type: Grant
    Filed: January 30, 2019
    Date of Patent: November 29, 2022
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Chuanyong Bai, Yang-Ming Zhu, Sheng Lu, Shiyu Xu, Hao Dang, Hao Lai, Douglas B. McKnight, Hui Wang
  • Patent number: 11428829
    Abstract: A non-transitory computer-readable medium stores instructions readable and executable by a workstation (18) including at least one electronic processor (20) to perform an image reconstruction method (100) to reconstruct list mode data acquired over a frame acquisition time using a plurality of radiation detectors (17) in which the events of the list mode data is timestamped.
    Type: Grant
    Filed: January 30, 2019
    Date of Patent: August 30, 2022
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Xiyun Song, Chuanyong Bai, Jinghan Ye, Andriy Andreyev, Zhiqiang Hu
  • Publication number: 20220257209
    Abstract: An x-ray imaging apparatus and associated methods are provided to execute multi-pass imaging scans for improved quality and workflow. An imaging scan can be segmented into multiple passes that are faster than the full imaging scan. Data received by an initial scan pass can be utilized early in the workflow and of sufficient quality for treatment setup, including while the another scan pass is executed to generate data needed for higher quality images, which may be needed for treatment planning. In one embodiment, a data acquisition and reconstruction technique is used when the detector is offset in the channel and/or axial direction for a large FOV during multiple passes.
    Type: Application
    Filed: May 2, 2022
    Publication date: August 18, 2022
    Applicant: Accuray, Inc.
    Inventors: Daniel Gagnon, Chuanyong Bai, Zhicong Yu
  • Patent number: 11398064
    Abstract: A non-transitory computer-readable medium stores instructions readable and executable by a workstation (14) operatively connected to a display device (20) and including at least one electronic processor (16) to perform an image acquisition and reconstruction method (101). The method includes: retrieving a non-voxel-based reconstructed image comprising non-voxel image elements from a picture and archiving communication system (PACS) database (24) to the workstation; at the workstation, generating at least one voxel-based resampled image from the non-voxel-based reconstructed image; and displaying the at least one voxel-based reconstructed image on the display device.
    Type: Grant
    Filed: September 18, 2018
    Date of Patent: July 26, 2022
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Bin Zhang, Chuanyong Bai, Andriy Andreyev, Zhiqiang Hu
  • Patent number: 11393138
    Abstract: A non-transitory storage medium stores instructions readable and executable by an electronic processor (20) to perform a method (100) for estimating singles rates for detectors (16) of a detector array (14) of a positron emission tomography (PET) imaging device (12).
    Type: Grant
    Filed: September 20, 2018
    Date of Patent: July 19, 2022
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Xiyun Song, Jinghan Ye, Andriy Andreyev, Chuanyong Bai, Zhiqiang Hu