Patents by Inventor J. WEBSTER STAYMAN

J. WEBSTER STAYMAN 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).

  • Dual-energy cone-beam computed tomography with a multiple source, single-detector configuration
    Patent number: 10631800
    Abstract: The present invention is directed to a system and method for dual-energy (DE) or multiple-energy (spectral) cone-beam computed tomography (CBCT) using a configuration of multiple x-ray sources and a single detector. The x-ray sources are operated to produce x-ray spectra of different energies (peak kilovoltage (kVp) and/or filtration). Volumetric 3D image reconstruction and dual or triple energy 3D image decomposition can be executed using data from the CBCT scan. The invention allows for a variety of selections in energy and filtration associated with each source and the order of pulsing for each source (“firing pattern”). The motivation for distributing the sources along the z direction in CBCT includes extension of the longitudinal field of view and reduction of cone-beam artifacts.
    Type: Grant
    Filed: November 25, 2014
    Date of Patent: April 28, 2020
    Assignees: The Johns Hopkins University, Carestream Health, Inc.
    Inventors: Jeffrey H. Siewerdsen, J. Webster Stayman, Wojciech Zbijewski, John Yorkston
  • DUAL-ENERGY CONE-BEAM COMPUTED TOMOGRAPHY WITH A MULTIPLE SOURCE, SINGLE-DETECTOR CONFIGURATION
    Publication number: 20160262709
    Abstract: The present invention is directed to a system and method for dual-energy (DE) or multiple-energy (spectral) cone-beam computed tomography (CBCT) using a configuration of multiple x-ray sources and a single detector. The x-ray sources are operated to produce x-ray spectra of different energies (peak kilovoltage (kVp) and/or filtration). Volumetric 3D image reconstruction and dual or triple energy 3D image decomposition can be executed using data from the CBCT scan. The invention allows for a variety of selections in energy and filtration associated with each source and the order of pulsing for each source (“firing pattern”). The motivation for distributing the sources along the z direction in CBCT includes extension of the longitudinal field of view and reduction of cone-beam artifacts.
    Type: Application
    Filed: November 25, 2014
    Publication date: September 15, 2016
    Applicants: The Johns Hopkins University, Carestream Health, Inc.
    Inventors: Jeffrey H. Siewerdsen, J. Webster Stayman, Wojciech Zbijewski, John Yorkston
  • Method of image registration in a multi-source/single detector radiographic imaging system, and image acquisition apparatus
    Patent number: 9427286
    Abstract: A method, an imaging apparatus and a computer readable medium are enabled for automatically registering medical images. The imaging apparatus may be an amended C-arm. The image acquisition apparatus has a primary x-ray source and at least one auxiliary x-ray source, a detector for receiving radiation of the primary and auxiliary x-ray source, and an interface to a registration unit. The registration unit computes a 3D/2D registration of a provided 3D image and at least two acquired 2D images. An output interface is configured to provide an output and to display the registered images on a monitor.
    Type: Grant
    Filed: September 24, 2013
    Date of Patent: August 30, 2016
    Assignee: The Johns Hopkins University
    Inventors: Jeffrey Siewerdsen, Yoshito Otake, Ali Uneri, J. Webster Stayman
  • METHOD OF IMAGE REGISTRATION IN A MULTI-SOURCE/SINGLE DETECTOR RADIOGRAPHIC IMAGING SYSTEM, AND IMAGE ACQUISITION APPARATUS
    Publication number: 20150085981
    Abstract: A method, an imaging apparatus and a computer readable medium are enabled for automatically registering medical images. The imaging apparatus may be an amended C-arm. The image acquisition apparatus has a primary x-ray source and at least one auxiliary x-ray source, a detector for receiving radiation of the primary and auxiliary x-ray source, and an interface to a registration unit. The registration unit computes a 3D/2D registration of a provided 3D image and at least two acquired 2D images. An output interface is configured to provide an output and to display the registered images on a monitor.
    Type: Application
    Filed: September 24, 2013
    Publication date: March 26, 2015
    Applicant: SIEMENS AKTIENGESELLSCHAFT
    Inventors: JEFFREY SIEWERDSEN, YOSHITO OTAKE, ALI UNERI, J. WEBSTER STAYMAN