Patents by Inventor Steven J. Woloschek

Steven J. Woloschek 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: 20200411177
    Abstract: A method of controlling an infant care device includes identifying, via a location tracking system, a device location of the infant care device within a care facility by locating a device location tag on the infant care device, and also identifying any local clinician tags worn by a clinician within a predetermined area around the device location. The local clinician tags are compared to a list of authorized clinician tags to identify whether at least one local authorized clinician tag is within the predetermined area around the infant care device. User input is received at a user interface associated with the infant care device to modify operation of the infant care device. Operation of the infant care device is modified based on the user input only if at least one local authorized clinician tag is within the predetermined area around the infant care device at the time of receiving the user input.
    Type: Application
    Filed: June 27, 2019
    Publication date: December 31, 2020
    Applicant: GE Precision Healthcare LLC
    Inventors: Steven J. Woloschek, Steven M. Falk, Karen P. Starr, Elizabeth K. Devins
  • Patent number: 8548118
    Abstract: A CT system includes a gantry, an x-ray source configured to project x-rays toward an object, an x-ray detector positioned to receive x-rays from the x-ray source that pass through the object, a generator configured to energize the x-ray source to a first voltage and to a second voltage that is distinct from the first voltage, and a controller configured to cause the gantry to position the source and generator at a circumferential position during an imaging session, pass the object through the opening during the imaging session, cause the generator to energize the x-ray source to the first voltage and to the second voltage, acquire imaging data while the generator energizes the x-ray source to the first voltage and to the second voltage while the rotatable gantry is at the circumferential position, and generate an image using the imaging data.
    Type: Grant
    Filed: December 21, 2009
    Date of Patent: October 1, 2013
    Assignee: General Electric Company
    Inventors: Jiang Hsieh, Naveen Chandra, Steven J. Woloschek, Robert F. Senzig
  • Publication number: 20110150175
    Abstract: A CT system includes a gantry, an x-ray source configured to project x-rays toward an object, an x-ray detector positioned to receive x-rays from the x-ray source that pass through the object, a generator configured to energize the x-ray source to a first voltage and to a second voltage that is distinct from the first voltage, and a controller configured to cause the gantry to position the source and generator at a circumferential position during an imaging session, pass the object through the opening during the imaging session, cause the generator to energize the x-ray source to the first voltage and to the second voltage, acquire imaging data while the generator energizes the x-ray source to the first voltage and to the second voltage while the rotatable gantry is at the circumferential position, and generate an image using the imaging data.
    Type: Application
    Filed: December 21, 2009
    Publication date: June 23, 2011
    Inventors: Jiang Hsieh, Naveen Chandra, Steven J. Woloschek, Robert F. Senzig
  • Patent number: 7477928
    Abstract: A method for associating EKG waveform data with computed tomography image data using a data synchronization scheme including generating the EKG waveform data using an electrocardiogram device, operating a computed tomography imaging system so as to create the computed tomography image data, communicating an exposure marker-in signal to the electrocardiogram device such that the exposure marker-in signal is associated with the EKG waveform data and processing the computed tomography image data, the EKG waveform data and the exposure marker-in signal, so as to correlate the EKG waveform data with the computed tomography image data. Also claimed is a medium encoded with a machine-readable computer program code for associating EKG waveform data with image data generated by an imaging system using a data synchronization scheme, the medium including instructions for causing controller to implement the aforementioned method.
    Type: Grant
    Filed: May 17, 2002
    Date of Patent: January 13, 2009
    Assignee: GE Medical Systems Global Technology Company, LLC
    Inventors: Kishore C. Acharya, Darin R. Okerlund, Steven J. Woloschek, Mark E. Woodford
  • Patent number: 6990172
    Abstract: A method and apparatus is disclosed to acquire scout scan data of a subject and analyzed to determine a peak-to-peak modulation amplitude of a normalized waveform indicative of subject size and shape. The scout scan data provides a representation of patient size and shape that is associated with an ideal tube current modulation waveform or profile. The ideal tube current modulation profile may then be sampled or approximated at various points to determine a tube current modulation profile for implementation to acquire CT data with reduced dose but without sacrificing image quality.
    Type: Grant
    Filed: February 19, 2004
    Date of Patent: January 24, 2006
    Assignee: General Electric Company
    Inventors: Thomas L. Toth, Steven J. Woloschek, Jonathan R. Schmidt
  • Patent number: 6836529
    Abstract: A system and method of diagnostic imaging with reduced x-ray exposure to the scan subject during scanning includes acquiring a set of cardiac signals or other motion (cardiac mechanical motion or respiratory motion) related signals and determining and imaging profile therefrom. Pursuant to the imaging profile, voltage applied to an x-ray source is modulated to provide an energizing voltage during primary data acquisition stages and a reduced voltage during secondary or non-data acquisition stages. Voltage modulation repeats until sufficient data for image reconstruction has been acquired.
    Type: Grant
    Filed: February 13, 2002
    Date of Patent: December 28, 2004
    Assignee: General Electric Company
    Inventors: Jianying Li, Steven J. Woloschek, Thomas L. Toth, Jonathan R. Schmidt
  • Publication number: 20030216641
    Abstract: A method for associating EKG waveform data with computed tomography image data using a data synchronization scheme including generating the EKG waveform data using an electrocardiogram device, operating a computed tomography imaging system so as to create the computed tomography image data, communicating an exposure marker-in signal to the electrocardiogram device such that the exposure marker-in signal is associated with the EKG waveform data and processing the computed tomography image data, the EKG waveform data and the exposure marker-in signal, so as to correlate the EKG waveform data with the computed tomography image data. Also claimed is a medium encoded with a machine-readable computer program code for associating EKG waveform data with image data generated by an imaging system using a data synchronization scheme, the medium including instructions for causing controller to implement the aforementioned method.
    Type: Application
    Filed: May 17, 2002
    Publication date: November 20, 2003
    Inventors: Kishore C. Acharya, Darin R. Okerlund, Steven J. Woloschek, Mark E. Woodford
  • Publication number: 20030152189
    Abstract: A system and method of diagnostic imaging with reduced x-ray exposure to the scan subject during scanning includes acquiring a set of cardiac signals or other motion (cardiac mechanical motion or respiratory motion) related signals and determining and imaging profile therefrom. Pursuant to the imaging profile, voltage applied to an x-ray source is modulated to provide an energizing voltage during primary data acquisition stages and a reduced voltage during secondary or non-data acquisition stages. Voltage modulation repeats until sufficient data for image reconstruction has been acquired.
    Type: Application
    Filed: February 13, 2002
    Publication date: August 14, 2003
    Inventors: Jianying Li, Steven J. Woloschek, Thomas L. Toth, Jonathan R. Schmidt
  • Patent number: 6470208
    Abstract: A method is described for controlling x-ray exposure during gated cardiac scanning, including the steps of detecting a first cardiac signal; starting scanning after a pre-selected wait time after detecting the first cardiac signal; and stopping the scanning after a first to occur of passage of a pre-selected data collection time and detection of a second cardiac signal.
    Type: Grant
    Filed: December 30, 1999
    Date of Patent: October 22, 2002
    Assignee: GE Medical Systems Global Technology Company, LLC
    Inventors: Mark E. Woodford, Kishore C. Acharya, Steven J. Woloschek
  • Patent number: 6442228
    Abstract: One embodiment of the present invention is a method for imaging an object with a computed tomographic (CT) imaging system that includes steps of scanning an object with a beam of radiation from a CT imaging system to produce a view stream including attenuation data for the object being scanned; sensing one or more dynamic parameters relating to at least one of the object being scanned and the CT imaging system; and integrating information relating to the one or more sensed dynamic parameters into the view stream. This embodiment integrates information necessary for compensating reconstructed images directly into the view stream, thereby making the necessary information more conveniently available for such compensation.
    Type: Grant
    Filed: April 20, 2000
    Date of Patent: August 27, 2002
    Assignee: GE Medical Systems Global Technology Company, LLC
    Inventors: Steven J. Woloschek, Kenneth G. Dunahee
  • Patent number: 6385279
    Abstract: In one embodiment, the present invention is a method for positioning an x-ray beam on a multi-slice detector array of an imaging system in which the detector array has rows of detector elements and is configured to detect x-rays in slices along a z-axis. The method includes steps of comparing data signals representative of x-ray intensity received from different rows of detector elements and positioning the x-ray beam in accordance with a result of the comparison.
    Type: Grant
    Filed: August 27, 1999
    Date of Patent: May 7, 2002
    Assignee: General Electric Company
    Inventors: Thomas L. Toth, Steven J. Woloschek, Jerome D. Rabe
  • Patent number: 6327331
    Abstract: In one embodiment of the present invention, a method is provided for analyzing performance of tracking control loop in a CT imaging system configured to position an x-ray beam using the tracking control loop. The method includes the steps of collecting control loop data over a plurality of views during scanning and of evaluating control loop data relative to the corresponding views to measure at least one imaging system characteristic. This method provides the imaging system user with data that facilitates insight into possible causes for imaging artifacts. In another embodiment, a CT imaging system is provided including a tracking control loop. The CT imaging system is configured to position an x-ray beam using the tracking control loop, collect control loop data over a plurality of views during scanning and evaluate control loop data relative to the corresponding views to measure at least one imaging system characteristic.
    Type: Grant
    Filed: December 28, 1999
    Date of Patent: December 4, 2001
    Assignee: GE Medical Systems Global Technology Company, LLC
    Inventors: Thomas L. Toth, Steven J. Woloschek
  • Patent number: 6307910
    Abstract: Methods and corresponding apparatus for imaging a portion of a patient's body with a computed tomographic imaging system configured to scan the patient's body at a cyclically varying view angle, in which the imaging system includes a radiation source and detector array providing a fan angle width of image data. In one embodiment, the method includes axially scanning the portion of the patient's body, gating the radiation source on over less than a 360 °view angle cycle of the axial scan, acquiring image data of the portion of the patient's body during at least a portion of the time the radiation source is gated on, and assembling the acquired image data into an image of the portion of the patient's body.
    Type: Grant
    Filed: January 7, 2000
    Date of Patent: October 23, 2001
    Assignee: GE Medical Systems Global Technology Company, LLC
    Inventors: Kishore C. Acharya, Jiang Hsieh, Kenneth G. Dunahee, Steven J. Woloschek
  • Patent number: 6298117
    Abstract: Methods and apparatus for dose reduction in a computed tomography (CT) system are described. In one embodiment, the CT system includes a pre-patient collimator and a configurable multislice detector array. The pre-patient collimator includes a plurality of eccentric cams and a filtration device for altering the x-ray beam radiated from a x-ray source. The eccentric cams are positioned to collimate the x-ray beam and may be independently positioned to provide z-axis correction of the x-ray beam. The filtration device includes a plurality of filters for altering the x-ray beam. In operation, an operator selects the type of test and the quantity and thickness of the slices. After altering the detector and collimator configuration, slice data for each slice is gathered.
    Type: Grant
    Filed: October 20, 2000
    Date of Patent: October 2, 2001
    Assignee: General Electric Company
    Inventors: Willi W. Hampel, Russell W. Hum, Carmine F. Vara, Jr., Steven J. Woloschek
  • Patent number: 6173039
    Abstract: Methods and apparatus for dose reduction in a computed tomography (CT) system are described. In one embodiment, the CT system includes a pre-patient collimator and a configurable multislice detector array. The pre-patient collimator includes a plurality of eccentric cams and a filtration device for altering the x-ray beam radiated from a x-ray source. The eccentric cams are positioned to collimate the x-ray beam and may be independently positioned to provide z-axis correction of the x-ray beam. The filtration device includes a plurality of filters for altering the x-ray beam. In operation, an operator selects the type of test and the quantity and thickness of the slices. After altering the detector and collimator configuration, slice data for each slice is gathered.
    Type: Grant
    Filed: August 25, 1998
    Date of Patent: January 9, 2001
    Assignee: General Electric Company
    Inventors: Willi W. Hampel, Russell W. Hum, Carmine F. Vara, Jr., Steven J. Woloschek