Patents by Inventor Cecile Dufour
Cecile Dufour 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: 11903770Abstract: The present invention relates to a medical imaging apparatus. The apparatus comprises an ultrasound acquisition unit including an ultrasound probe for acquiring ultrasound image data of a patient. An image data interface is provided for receiving 3D medical image data of the patient and a position determining unit for determining a position of the ultrasound probe. A calibration unit determines a transfer function between the ultrasound image data and the 3D medical image data at a plurality of positions (C) of the ultrasound probe and provides a corresponding plurality of calibrated transfer functions and calibration positions. A computation unit synchronizes the ultrasound image data and the 3D medical image data on the basis of a position of the ultrasound probe and the plurality of calibrated transfer functions, said computation unit is further adapted to weight the calibrated transfer functions on the basis of a position of the ultrasound probe.Type: GrantFiled: October 2, 2020Date of Patent: February 20, 2024Assignee: KONINKLIJKE PHILIPS N.V.Inventors: Cecile Dufour, Benoit Jean-Dominique Bertrand Maurice Mory, Thomas Shu Yin Tang
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Patent number: 11877893Abstract: A method and processing system for providing a three-dimensional, 3D, ultrasound image along with an additional ultrasound acquisition. A location of the additional ultrasound acquisition with respect to the three-dimensional ultrasound image is determined or obtained. After obtaining the 3D ultrasound image and the additional ultrasound acquisition, initial display data is for display of only the 3D ultrasound image. In response to a user input, second display data is generated for displaying both the 3D ultrasound image and the additional ultrasound acquisition. The display of the additional ultrasound acquisition is based on the location of the additional ultrasound acquisition with respect to the three-dimensional ultrasound image.Type: GrantFiled: February 25, 2019Date of Patent: January 23, 2024Assignee: KONINKLIJKE PHILIPS N.V.Inventors: Laurence Rouet, Cecile Dufour, Robert Randall Entrekin, Gary Cheng-How Ng
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Patent number: 11712225Abstract: The invention provides a method of stabilising an ultrasound image, the method comprising generating a composite image of a current image and at least one previous image. The composite image has a region of interest which is stabilised based on at least obtained stabilisation information. Use of a current image and at least one previous image allows a composite image of a larger size to be produced.Type: GrantFiled: September 5, 2017Date of Patent: August 1, 2023Assignee: KONINKLIJKE PHILIPS N.V.Inventors: Oudom Somphone, Cecile Dufour
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Patent number: 11672505Abstract: A fusion imaging system co-registers and fuses real time ultrasound images with reference images such as those produced by MRI or CT imaging. In an illustrated implementation, previously acquired CT or MRI or ultrasound images are loaded into the system. An ultrasound system is operated in conjunction with a tracking system so that the ultrasound probe and images can be spatially tracked. A computerized image processor registers the probe position with a reference image of the anatomy being scanned by the probe and determines whether the probe appears to be inside the skin line of the subject. If that is the case it is due to probe compression of the subject, and the reference image is modified to locate the skin line in the reference image in front of the ultrasound probe. The modified reference images can then be readily co-registered and fused with the ultrasound images produced by the probe.Type: GrantFiled: April 21, 2022Date of Patent: June 13, 2023Assignee: KONINKLIJKE PHILIPS N.V.Inventors: Cecile Dufour, Roberto Jose Ardon, Gary Cheng-How Ng, Thomas Shu Yin Tang
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Patent number: 11547388Abstract: A fusion imaging system co-registers and fuses real time ultrasound images with reference images such as those produced by MRI or CT imaging. In an illustrated implementation, previously acquired CT or MRI or ultrasound images are loaded into the system. An ultrasound system is operated in conjunction with a tracking system so that the ultrasound probe and images can be spatially tracked. A computerized image processor registers the probe position with a reference image of the anatomy being scanned by the probe and determines whether the probe appears to be inside the skin line of the subject. If that is the case it is due to probe compression of the subject, and the reference image is modified to locate the skin line in the reference image in front of the ultrasound probe. The modified reference images can then be readily co-registered and fused with the ultrasound images produced by the probe.Type: GrantFiled: May 22, 2017Date of Patent: January 10, 2023Assignee: KONINKLIJKE PHILIPS N.V.Inventors: Cecile Dufour, Roberto José Ardon, Gary Cheng-How Ng, Thomas Shu Yin Tang
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Patent number: 11540811Abstract: The present disclosure describes ultrasound imaging systems and methods, which may enable the automatic identification of an image plane in a pre-operative volume corresponding to a real-time image of a moving region of interest. An example method includes receiving real-time ultrasound image data from a probe associated with a position-tracking sensor, generating real-time images based on the real-time ultrasound data and deriving a motion model from the real-time ultrasound image data. The method may further include automatically identifying an image plane in a pre-operative data set to correspond to the real-time ultrasound image by correcting for motion-induced misalignment between the real-time data and the pre-operative data.Type: GrantFiled: January 4, 2019Date of Patent: January 3, 2023Assignee: KONINKLIJKE PHILIPS N.V.Inventors: Cecile Dufour, Thomas Shu Yin Tang, Gary Cheng-How Ng
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Publication number: 20220296213Abstract: A fusion imaging system co-registers and fuses real time ultrasound images with reference images such as those produced by MRI or CT imaging. In an illustrated implementation, previously acquired CT or MRI or ultrasound images are loaded into the system. An ultrasound system is operated in conjunction with a tracking system so that the ultrasound probe and images can be spatially tracked. A computerized image processor registers the probe position with a reference image of the anatomy being scanned by the probe and determines whether the probe appears to be inside the skin line of the subject. If that is the case it is due to probe compression of the subject, and the reference image is modified to locate the skin line in the reference image in front of the ultrasound probe. The modified reference images can then be readily co-registered and fused with the ultrasound images produced by the probe.Type: ApplicationFiled: April 21, 2022Publication date: September 22, 2022Inventors: Cecile Dufour, Roberto Jose Ardon, Gary Cheng-How Ng, Thomas Shu Yin Tang
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Patent number: 11344278Abstract: Disclosed is a computer-implemented method for determining an ovarian follicle count and size (diameter) from a pair of 2-D transvaginal ultrasound scans.Type: GrantFiled: February 12, 2018Date of Patent: May 31, 2022Assignee: KONINKLIJKE PHILIPS N.V.Inventors: Ganesan Ramachandran, Sindhu Priyadarshini Nellur Prakash, Celine Firtion, Cecile Dufour, Stéphane Allaire
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Patent number: 11298096Abstract: The invention provides a method of patient monitoring following endovascular aneurysm repair (EVAR) with a stent graft. It particularly applies to abdominal aortic aneurysm repair. A first 3D volume scan of the stent in situ is provided and a second, subsequent 3D volume scan of the stent is also provided. One or more fiducial markers are generated in a first image derived from the first scan and in a second image derived from the second scan. The fiducial markers identify recognizable features of the stent, such as the bifurcation point in the stent graft. A rigid 3D transform mapping based on the one or more fiducial markers is extracted and then a registration is applied to the first and second scans based on the 3D rigid transform between the first and second images. A size value is derived at the same location in the aneurysm from the first and second scans. The same location is determined with reference to the registered first and second images of the stent.Type: GrantFiled: July 12, 2018Date of Patent: April 12, 2022Assignee: KONINKLIJKE PHILIPS N.V.Inventors: Laurence Rouet, Antoine Collet-Billon, Cecile Dufour, Robert Randall Entrekin
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Patent number: 11120564Abstract: A medical imaging apparatus (10) for inspecting a volume of a subject (12) is disclosed. The medical imaging apparatus comprises an ultrasound acquisition unit (14) including an ultrasound probe for acquiring ultrasound image data of the subject, an image interface (20) for receiving medical image data of the subject, a position determining unit (30) for determining a position of the ultrasound probe. An alignment unit is provided for aligning the ultrasound image data and the medical image data based on anatomical features (32) of the subject and the detected position of the ultrasound probe and for adapting the alignment of the ultrasound image data and the medical image data based on a motion model. An image processing unit (18) is provided for processing the ultrasound image data and the medical image data to fuse the ultrasound image data and the medical image data based on the alignment to combined image data.Type: GrantFiled: December 20, 2016Date of Patent: September 14, 2021Assignee: KONINKLIJKE PHILIPS N.V.Inventors: Cecile Dufour, Stephane Allaire, Thomas Tang, Gary Cheng-How Ng
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Patent number: 11006927Abstract: An ultrasound imaging apparatus (16) is disclosed for providing two-dimensional ultrasound images of a patient. The ultrasound imaging apparatus comprises an input interface (18) for receiving three-dimensional ultrasound data of a volume of the patient from an ultrasound acquisition unit as a continuous data stream and a motion detection unit (22) for determining a motion of an object in the three-dimensional ultrasound data and a direction of the motion in the three-dimensional ultrasound data. An image processing unit (20) determines a spatial rotation angle (46) of an image plane (32, 34) within the volume on the basis of the determined direction of the motion and determines two-dimensional ultrasound image data on the basis of the three-dimensional ultrasound data in the image plane within the volume. The two-dimensional image data is provided via an output interface to a display unit (26).Type: GrantFiled: March 31, 2016Date of Patent: May 18, 2021Assignee: KONINKLIJKE PHILIPS N.V.Inventors: Cecile Dufour, Stephane Allaire, Oudom Somphone, Vijay Thakur Shamdasani, Gary Cheng-How Ng
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Publication number: 20210068790Abstract: The present disclosure describes ultrasound imaging systems and methods, which may enable the automatic identification of an image plane in a pre-operative volume corresponding to a real-time image of a moving region of interest. An example method includes receiving real-time ultrasound image data from a probe associated with a position-tracking sensor, generating real-time images based on the real-time ultrasound data and deriving a motion model from the real-time ultrasound image data. The method may further include automatically identifying an image plane in a pre-operative data set to correspond to the real-time ultrasound image by correcting for motion-induced misalignment between the real-time data and the pre-operative data.Type: ApplicationFiled: January 4, 2019Publication date: March 11, 2021Inventors: CECILE DUFOUR, THOMAS SHU YIN TANG, GARY CHENG-HOW NG
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Patent number: 10932739Abstract: The invention relates to x-ray imaging technology as well as image post-processing. Particularly, the present invention relates to post-processing of perfusion image data acquired by an x-ray imaging apparatus by absolutely or relatively normalizing perfusion image data to allow a preferred comparison of the image data, both with regard to different acquisitions as well as different patients. To allow normalization of perfusion image data, it may be desirable to know the amount of contrast agent injected, which remains in a coronary. Subsequently, image parameters may be adapted or normalized based on the known amount of contrast agent within the coronary for normalization of perfusion image data. To obtain a precise amount of injected contrast agent, the injected volume of contrast agent flowing through a defined region or section of a vessel may be estimated. Said injected volume of contrast agent may thus be deduced from the estimation of the total volume flow at this location.Type: GrantFiled: February 28, 2012Date of Patent: March 2, 2021Assignee: KONINKLIJKE PHILIPS N.V.Inventors: Raoul Florent, Cecile Dufour, Vincent Auvray, Odile Bonnefous
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Publication number: 20210015465Abstract: The present invention relates to a medical imaging apparatus. The apparatus comprises an ultrasound acquisition unit including an ultrasound probe for acquiring ultrasound image data of a patient. An image data interface is provided for receiving 3D medical image data of the patient and a position determining unit for determining a position of the ultrasound probe. A calibration unit determines a transfer function between the ultrasound image data and the 3D medical image data at a plurality of positions (C) of the ultrasound probe and provides a corresponding plurality of calibrated transfer functions and calibration positions. A computation unit synchronizes the ultrasound image data and the 3D medical image data on the basis of a position of the ultrasound probe and the plurality of calibrated transfer functions, said computation unit is further adapted to weight the calibrated transfer functions on the basis of a position of the ultrasound probe.Type: ApplicationFiled: October 2, 2020Publication date: January 21, 2021Inventors: CECILE DUFOUR, BENOIT JEAN-DOMINIQUE BERTRAND MAURICE MORY, THOMAS SHU YIN TANG
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Publication number: 20200397407Abstract: A method and processing system for providing a three-dimensional, 3D, ultrasound image along with an additional ultrasound acquisition. A location of the additional ultrasound acquisition with respect to the three-dimensional ultrasound image is determined or obtained. After obtaining the 3D ultrasound image and the additional ultrasound acquisition, initial display data is for display of only the 3D ultrasound image. In response to a user input, second display data is generated for displaying both the 3D ultrasound image and the additional ultrasound acquisition. The display of the additional ultrasound acquisition is based on the location of the additional ultrasound acquisition with respect to the three-dimensional ultrasound image.Type: ApplicationFiled: February 25, 2019Publication date: December 24, 2020Inventors: Laurence ROUET, Cecile DUFOUR, Robert Randall ENTREKIN, Gary Cheng-How NG
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Publication number: 20200367860Abstract: An ultrasound guidance method and system for an ultrasound imaging system in which user-defined start and end locations define a volume to be imaged. Guidance instructions for an ultrasound process performed on the defined volume may thereby be generated, to help guide the movement of an ultrasound probe during the ultrasound imaging process. The movement of the ultrasound probe is monitored using an ultrasound probe tracker to ensure that the user is adhering to the guidance instructions.Type: ApplicationFiled: November 15, 2018Publication date: November 26, 2020Inventors: Laurence ROUET, Cecile DUFOUR, Robert Randall ENTREKIN, Gary Cheng-How NG
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Patent number: 10828014Abstract: The present invention relates to a medical imaging apparatus (10). The apparatus comprises an ultrasound acquisition unit including an ultrasound probe (14) for acquiring ultrasound image data of a patient (12). An image data interface (18) is provided for receiving 3D medical image data of the patient and a position determining unit (28) for determining a position of the ultrasound probe. A calibration unit (24) determines a transfer function between the ultrasound image data and the 3D medical image data at a plurality of positions (C) of the ultrasound probe and provides a corresponding plurality of calibrated transfer functions and calibration positions. A computation unit (26) synchronizes the ultrasound image data and the 3D medical image data on the basis of a position of the ultrasound probe and the plurality of calibrated transfer functions, said computation unit is further adapted to weight the calibrated transfer functions on the basis of a position of the ultrasound probe.Type: GrantFiled: April 5, 2016Date of Patent: November 10, 2020Assignee: Koninklijke Philips N.V.Inventors: Cecile Dufour, Benoit Jean-Dominique Bertrand Maurice Mory, Thomas Shu Yin Tang
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Publication number: 20200273184Abstract: A medical imaging apparatus (10) for inspecting a volume of a subject (12) is disclosed. The medical imaging apparatus comprises an ultrasound acquisition unit (14) including an ultrasound probe for acquiring ultrasound image data of the subject, an image interface (20) for receiving medical image data of the subject, a position determining unit (30) for determining a position of the ultrasound probe. An alignment unit is provided for aligning the ultrasound image data and the medical image data based on anatomical features (32) of the subject and the detected position of the ultrasound probe and for adapting the alignment of the ultrasound image data and the medical image data based on a motion model. An image processing unit (18) is provided for processing the ultrasound image data and the medical image data to fuse the ultrasound image data and the medical image data based on the alignment to combined image data.Type: ApplicationFiled: December 20, 2016Publication date: August 27, 2020Inventors: CECILE DUFOUR, STEPHANE ALLAIRE, THOMAS TANG, GARY CHENG-HOW NG
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Patent number: 10729410Abstract: An ultrasound imaging apparatus is disclosed for identifying anatomical objects in a field of view. The apparatus comprises an image interface for receiving 3D medical image data of a patient, and a segmentation unit for segmenting anatomical objects of the patient in the 3D medical image data and for providing segmentation data of the anatomical objects. An ultrasound acquisition unit including an ultrasound probe is included for acquiring ultrasound data of the patient. The apparatus further comprises a position determining unit for determining a position of the ultrasound probe, wherein the position determining unit includes a calibration unit for calibrating the position of the ultrasound probe on the basis of anatomical features of the patient. An identification unit is included in the apparatus for identifying the anatomical objects within the field of view of the ultrasound probe on the basis of the segmentation data and the position of the ultrasound probe.Type: GrantFiled: June 18, 2015Date of Patent: August 4, 2020Assignee: KONINKLIJKE PHILIPS N.V.Inventors: Cecile Dufour, Benoit Jean-Dominique Bertrand Maurice Mory
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Publication number: 20200155102Abstract: The invention provides a method of patient monitoring following endovascular aneurysm repair (EVAR) with a stent graft. It particularly applies to abdominal aortic aneurysm repair. A first 3D volume scan of the stent in situ is provided and a second, subsequent 3D volume scan of the stent is also provided. One or more fiducial markers are generated in a first image derived from the first scan and in a second image derived from the second scan. The fiducial markers identify recognizable features of the stent, such as the bifurcation point in the stent graft. A rigid 3D transform mapping based on the one or more fiducial markers is extracted and then a registration is applied to the first and second scans based on the 3D rigid transform between the first and second images. A size value is derived at the same location in the aneurysm from the first and second scans. The same location is determined with reference to the registered first and second images of the stent.Type: ApplicationFiled: July 12, 2018Publication date: May 21, 2020Inventors: Laurence Rouet, Antoine Collet-Billon, Cecile Dufour, Robert Randall Entrekin