Patents by Inventor Jean-Baptiste Thibault
Jean-Baptiste Thibault 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).
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Patent number: 11955228Abstract: Systems and methods are provided for simulating medical images based on previously acquired data and a defined imaging protocol. In an example, a method includes generating a simulated medical image of a patient via virtual imaging based on previously obtained medical images and a scan intent of the virtual imaging, and outputting an imaging protocol based on a virtual protocol of the virtual imaging.Type: GrantFiled: December 10, 2021Date of Patent: April 9, 2024Assignee: GE PRECISION HEALTHCARE LLCInventors: Jean-Baptiste Thibault, Jonathan S. Maltz
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Patent number: 11832979Abstract: Various methods and systems are provided for stationary CT imaging. In one embodiment, an imaging system comprises a stationary distributed x-ray source unit comprising a plurality of emitters positioned to emit x-ray beams through the imaging volume, one or more detector arrays extending around at least a portion of an imaging volume, each detector array comprising a plurality of detector elements, each detector element configured to receive x-ray beams from more than one emitter, and an anti-scatter device configured to be positioned between one or more emitters of the plurality of emitters and an object in the imaging volume.Type: GrantFiled: June 8, 2021Date of Patent: December 5, 2023Assignee: GE PRECISION HEALTHCARE LLCInventors: Bruno Kristiaan Bernard De Man, Jed Douglas Pack, Mingye Wu, Chad Allan Smith, Jean-Baptiste Thibault
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Publication number: 20230320686Abstract: Methods and systems are provided for increasing a quality of computed tomography (CT) images generated by a CT system by altering a shape of a focal spot of an X-ray emitter of the CT system. In one embodiment, a method comprises controlling the CT system to focus a beam of electrons generated by a cathode of the CT system at a plurality of focal spots on a surface of an target of the CT system; generating a composite focal spot from the plurality of focal spots; and obtaining projection data of the CT system with the composite focal spot. For example, two focal spots may be combined to generate the composite focal spot. By combining focal spots to generate composite focal spots, a quality of a resulting view produced by the CT system may be increased.Type: ApplicationFiled: April 11, 2022Publication date: October 12, 2023Inventors: Jean-Baptiste Thibault, Michael J. Utschig, Ryan J. Lemminger, Sergio Lemaitre, Dominique Poincloux, Uwe Wiedmann
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Publication number: 20230277152Abstract: There is provided a computed tomography imaging system including a gantry including a rotating member on a rotating side, a stationary member on a stationary side, and a data communication system. The rotating member on the rotating side includes an X-ray source configured to emit X-rays, an X-ray detector configured to generate detector data, a data storage unit configured to store the detector data, and processing circuitry configured to process at least part of the stored detector data to generate a processed data set. The stationary member on the stationary side is communicatively coupled to the rotating member on the rotating side, and the data communication system is configured to transfer the processed data set from the rotating member on the rotating side to the stationary member on the stationary side.Type: ApplicationFiled: March 3, 2022Publication date: September 7, 2023Inventors: Changlyong KIM, Jiahua FAN, Brian J. BREUER, HÃ¥kan LANGEMARK, Jean-Baptiste THIBAULT
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Patent number: 11712216Abstract: Various methods and systems are provided for x-ray tube conditioning for a computed tomography imaging method. In one embodiment, x-ray may be generated in an x-ray tube of a radiation source prior to a diagnostic scan to warmup the x-ray tube to a desired temperature for the diagnostic scan. The power delivered to the x-ray tube during warmup may be adjusted in a closed loop system based on an initial temperature of the x-ray tube and the desired temperature for the diagnostic scan. During tube warmup, by placing a blocking plate coupled to a collimator blade in a path of the x-ray beam, the x-ray beam may be blocked from exiting a collimator.Type: GrantFiled: September 29, 2021Date of Patent: August 1, 2023Assignee: GE Precision Healthcare LLCInventors: Jean-Baptiste Thibault, Jiang Hsieh, Gary Strong
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Publication number: 20230187054Abstract: Systems and methods are provided for simulating medical images based on previously acquired data and a defined imaging protocol. In an example, a method includes generating a simulated medical image of a patient via virtual imaging based on previously obtained medical images and a scan intent of the virtual imaging, and outputting an imaging protocol based on a virtual protocol of the virtual imaging.Type: ApplicationFiled: December 10, 2021Publication date: June 15, 2023Inventors: Jean-Baptiste Thibault, Jonathan S. Maltz
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Patent number: 11633163Abstract: Various methods and systems are provided for stationary CT imaging. In one embodiment, a method for an imaging system includes activating an emitter of a plurality of emitters of a stationary distributed x-ray source unit to emit an x-ray beam toward an object within an imaging volume, where the x-ray source unit does not rotate around the imaging volume, receiving the x-ray beam at a subset of detector elements of a plurality of detector elements of one or more detector arrays, sampling the plurality of detector elements to generate a total transmission profile, an attenuation profile, and a scatter measurement, generating a scatter-corrected attenuation profile by entering the total transmission profile, the attenuation profile, and the scatter measurement as inputs to a model, and reconstructing one or more images from the scatter-corrected attenuation profile.Type: GrantFiled: June 8, 2021Date of Patent: April 25, 2023Assignee: GE Precision Healthcare LLCInventors: Bruno Kristiaan Bernard De Man, Jed Douglas Pack, Mingye Wu, Chad Allan Smith, Jean-Baptiste Thibault
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Publication number: 20220015732Abstract: Various methods and systems are provided for x-ray tube conditioning for a computed tomography imaging method. In one embodiment, x-ray may be generated in an x-ray tube of a radiation source prior to a diagnostic scan to warmup the x-ray tube to a desired temperature for the diagnostic scan. The power delivered to the x-ray tube during warmup may be adjusted in a closed loop system based on an initial temperature of the x-ray tube and the desired temperature for the diagnostic scan. During tube warmup, by placing a blocking plate coupled to a collimator blade in a path of the x-ray beam, the x-ray beam may be blocked from exiting a collimator.Type: ApplicationFiled: September 29, 2021Publication date: January 20, 2022Inventors: Jean-Baptiste Thibault, Jiang Hsieh, Gary Strong
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Publication number: 20210378619Abstract: Various methods and systems are provided for stationary CT imaging. In one embodiment, a method for an imaging system includes activating an emitter of a plurality of emitters of a stationary distributed x-ray source unit to emit an x-ray beam toward an object within an imaging volume, where the x-ray source unit does not rotate around the imaging volume, receiving the x-ray beam at a subset of detector elements of a plurality of detector elements of one or more detector arrays, sampling the plurality of detector elements to generate a total transmission profile, an attenuation profile, and a scatter measurement, generating a scatter-corrected attenuation profile by entering the total transmission profile, the attenuation profile, and the scatter measurement as inputs to a model, and reconstructing one or more images from the scatter-corrected attenuation profile.Type: ApplicationFiled: June 8, 2021Publication date: December 9, 2021Inventors: Bruno Kristiaan Bernard De Man, Jed Douglas Pack, Mingye Wu, Chad Allan Smith, Jean-Baptiste Thibault
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Publication number: 20210378618Abstract: Various methods and systems are provided for stationary CT imaging. In one embodiment, an imaging system comprises a stationary distributed x-ray source unit comprising a plurality of emitters positioned to emit x-ray beams through the imaging volume, one or more detector arrays extending around at least a portion of an imaging volume, each detector array comprising a plurality of detector elements, each detector element configured to receive x-ray beams from more than one emitter, and an anti-scatter device configured to be positioned between one or more emitters of the plurality of emitters and an object in the imaging volume.Type: ApplicationFiled: June 8, 2021Publication date: December 9, 2021Inventors: Bruno Kristiaan Bernard De Man, Jed Douglas Pack, Mingye Wu, Chad Allan Smith, Jean-Baptiste Thibault
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Patent number: 11147528Abstract: Various methods and systems are provided for x-ray tube conditioning for a computed tomography imaging method. In one embodiment, x-ray may be generated in an x-ray tube of a radiation source prior to a diagnostic scan to warmup the x-ray tube to a desired temperature for the diagnostic scan. The power delivered to the x-ray tube during warmup may be adjusted in a closed loop system based on an initial temperature of the x-ray tube and the desired temperature for the diagnostic scan. During tube warmup, by placing a blocking plate coupled to a collimator blade in a path of the x-ray beam, the x-ray beam may be blocked from exiting a collimator.Type: GrantFiled: August 16, 2019Date of Patent: October 19, 2021Assignee: GE Precision Healthcare LLCInventors: Jean-Baptiste Thibault, Jiang Hsieh, Gary Strong
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Patent number: 11126914Abstract: The present approach relates to the training of a machine learning algorithm for image generation and use of such a trained algorithm for image generation. Training the machine learning algorithm may involve using multiple images produced from a single set of tomographic projection or image data (such as a simple reconstruction and a computationally intensive reconstruction), where one image is the target image that exhibits the desired characteristics for the final result. The trained machine learning algorithm may be used to generate a final image corresponding to a computationally intensive algorithm from an input image generated using a less computationally intensive algorithm.Type: GrantFiled: October 11, 2017Date of Patent: September 21, 2021Assignees: GENERAL ELECTRIC COMPANY, PURDUE UNIVERSITY, NOTRE DAME UNIVERSITYInventors: Jean-Baptiste Thibault, Somesh Srivastava, Jiang Hsieh, Charles A. Bouman, Jr., Dong Ye, Ken Sauer
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Patent number: 11096642Abstract: Various methods and systems are provided for x-ray tube conditioning for a computed tomography imaging method. In one embodiment, a scout scan may be carried out prior to a diagnostic to warmup the x-ray tube to a desired temperature for the diagnostic scan. A scout scan parameter optimizing algorithm may be used to determine scout scan parameters based on a selected patient absorbed dose range and an amount of energy to be imparted to an x-ray tube during the scout scan preceding a diagnostic scan. By using a hardening filter in the path of the x-ray beam, radiation absorbed dose of the subject being scanned may be limited to the selected patient absorbed dose range.Type: GrantFiled: August 16, 2019Date of Patent: August 24, 2021Assignee: GE PRECISION HEALTHCARE LLCInventors: Dominic Joseph Crotty, Jean-Baptiste Thibault
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Publication number: 20210045703Abstract: Various methods and systems are provided for x-ray tube conditioning for a computed tomography imaging method. In one embodiment, a scout scan may be carried out prior to a diagnostic to warmup the x-ray tube to a desired temperature for the diagnostic scan. A scout scan parameter optimizing algorithm may be used to determine scout scan parameters based on a selected patient absorbed dose range and an amount of energy to be imparted to an x-ray tube during the scout scan preceding a diagnostic scan. By using a hardening filter in the path of the x-ray beam, radiation absorbed dose of the subject being scanned may be limited to the selected patient absorbed dose range.Type: ApplicationFiled: August 16, 2019Publication date: February 18, 2021Inventors: Dominic Joseph Crotty, Jean-Baptiste Thibault
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Publication number: 20210045706Abstract: Various methods and systems are provided for x-ray tube conditioning for a computed tomography imaging method. In one embodiment, x-ray may be generated in an x-ray tube of a radiation source prior to a diagnostic scan to warmup the x-ray tube to a desired temperature for the diagnostic scan. The power delivered to the x-ray tube during warmup may be adjusted in a closed loop system based on an initial temperature of the x-ray tube and the desired temperature for the diagnostic scan. During tube warmup, by placing a blocking plate coupled to a collimator blade in a path of the x-ray beam, the x-ray beam may be blocked from exiting a collimator.Type: ApplicationFiled: August 16, 2019Publication date: February 18, 2021Inventors: Jean-Baptiste Thibault, Jiang Hsieh, Gary Strong
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Publication number: 20190180481Abstract: An iterative reconstruction approach is provided that allows the use of differing weights in pixels or larger sub-regions in the reconstructed image. By way of example, the relative significance of each projection measurement may be determined based on both the measurement position and the location of the reconstructed pixel. Computationally, the significance of each projection based on these two factors is represented by a weight factor employed in the algorithmic computation.Type: ApplicationFiled: December 13, 2017Publication date: June 13, 2019Inventors: Lin Fu, Jean-Baptiste Thibault, Somesh Srivastava, Charles A. Bouman, Jr., Donghye Ye, Amirkoushyar Ziabari, Ken Sauer
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Publication number: 20190108441Abstract: The present approach relates to the training of a machine learning algorithm for image generation and use of such a trained algorithm for image generation. Training the machine learning algorithm may involve using multiple images produced from a single set of tomographic projection or image data (such as a simple reconstruction and a computationally intensive reconstruction), where one image is the target image that exhibits the desired characteristics for the final result. The trained machine learning algorithm may be used to generate a final image corresponding to a computationally intensive algorithm from an input image generated using a less computationally intensive algorithm.Type: ApplicationFiled: October 11, 2017Publication date: April 11, 2019Inventors: Jean-Baptiste Thibault, Somesh Srivastava, Jiang Hsieh, Charles A. Bouman, JR., Dong Ye, Ken Sauer
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Patent number: 9721361Abstract: A method for iteratively reconstructing an image is provided. The method includes acquiring, with a detector, computed tomography (CT) imaging information. The method also includes generating, with at least one processor, sinogram information from the CT imaging information. Further, the method includes generating, with the at least one processor, image domain information from the CT imaging information. Also, the method includes updating the image using the sinogram information. The method further includes updating the image using the image domain information. Updating the image using the sinogram information and updating the image using the image domain information are performed separately and alternately in an iterative fashion.Type: GrantFiled: June 30, 2015Date of Patent: August 1, 2017Assignees: General Electric Company, The Regents of the University of MichiganInventors: Debashish Pal, Evgeny Drapkin, Jean-Baptiste Thibault, Somesh Srivastava, Ryan Thome, Madison G. McGaffin, Jeffrey A. Fessler, Donghwan Kim
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Publication number: 20170010224Abstract: A method includes obtaining spectral computed tomography (CT) information via an acquisition unit having an X-ray source and a CT detector. The method also includes, generating, with one or more processing units, using at least one image transform, a first basis image and a second basis image using the spectral CT information. Further, the method includes performing, with the one or more processing units, guided processing on the second basis image using the first basis image as a guide to provide a modified second basis image. Also, the method includes performing at least one inverse image transform using the first basis image and the modified second basis image to generate at least one modified image.Type: ApplicationFiled: September 20, 2016Publication date: January 12, 2017Inventors: Jean-Baptiste Thibault, Debashish Pal, Jie Tang, Ken David Sauer, Charles Bouman, Ruoqiao Zhang
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Patent number: 9538974Abstract: Various methods and systems are provided for estimating and compensating for table deflection in reconstructed images. In one embodiment, a method for computed tomography (CT) imaging comprises reconstructing images from data acquired during a helical CT scan where table deflection parameters are estimated and the reconstruction is adjusted based on the table deflection parameters. In this way, images may be reconstructed without artifacts caused by table deflection.Type: GrantFiled: November 20, 2014Date of Patent: January 10, 2017Assignees: General Electric Company, The University of Notre Dame du LacInventors: Guangzhi Cao, Jiang Hsieh, Jean-Baptiste Thibault, Jiahua Fan, Ken D. Sauer