Patents by Inventor Peter Prinsen
Peter Prinsen 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: 11941359Abstract: Methods and systems for identifying anatomical phrases in medical text. Methods and systems described herein use a syntactic approach to generate lists of relevant terms and define a grammar on these terms. Methods and systems described then search for phrases in text that conform to the grammar.Type: GrantFiled: March 11, 2019Date of Patent: March 26, 2024Assignee: KONINKLIJKE PHILIPS N.V.Inventors: Peter Prinsen, Robbert Christiaan van Ommering
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Patent number: 11769277Abstract: An imaging system includes a computed tomography (CT) imaging device (10) (optionally a spectral CT), an electronic processor (16, 50), and a non-transitory storage medium (18, 52) storing a neural network (40) trained on simulated imaging data (74) generated by Monte Carlo simulation (60) including simulation of at least one scattering mechanism (66) to convert CT imaging data to a scatter estimate in projection space or to convert an uncorrected reconstructed CT image to a scatter estimate in image space. The storage medium further stores instructions readable and executable by the electronic processor to reconstruct CT imaging data (12, 14) acquired by the CT imaging device to generate a scatter-corrected reconstructed CT image (42). This includes generating a scatter estimate (92, 112, 132, 162, 182) by applying the neural network to the acquired CT imaging data or to an uncorrected CT image (178) reconstructed from the acquired CT imaging data.Type: GrantFiled: September 28, 2018Date of Patent: September 26, 2023Assignee: KONINKLIJKE PHILIPS N.V.Inventors: Shiyu Xu, Peter Prinsen, Jens Wiegert, Ravindra Mohan Manjeshwar
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Patent number: 11663756Abstract: An image processing system (IPS) and related method. The system (IPS) comprises an input interface (IN) for receiving an image (IM) of an object (OB) acquired by an imaging apparatus (IA). A kernel provider (KP) of the system (IPS) is configured to provide respective scatter kernels for at least two scatter types. A scatter correction module (SCM) of the system (IPS) is configured to perform a correction in the image based on the provided at least two kernels.Type: GrantFiled: May 28, 2019Date of Patent: May 30, 2023Assignee: KONINKLIJKE PHILIPS N.V.Inventors: Bernd Menser, Peter Prinsen, Dirk Schaefer, Jens Wiegert
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Patent number: 11337619Abstract: A device (10) configured to detect the presence of metal artifacts in a patient's eye includes a head mount (14) configured to receive at least a portion of the patient's head. At least one inductor coil (12) is disposed on or in the head mount and positioned to inductively couple with at least one eye of the patient's head received into the head mount. An inductance meter (18) is operably connected to the at least one inductor coil to measure an inductance as a change of frequency of the at least one inductor coil. A processor (22) is programmed to: determine whether the inductance is greater than an inductance threshold value; and generate an indication of at least one metal artifact when the inductance is greater than the inductance threshold value. A display component (24) is configured to display the indication.Type: GrantFiled: August 2, 2017Date of Patent: May 24, 2022Assignee: Koninklije Philips N.V.Inventors: Willem Potze, Petrus Carolus Maria Frissen, Aditya Mehendale, Jacek Lukasz Kustra, Peter Prinsen, Guillaume Leopold Theodorus Frederik Hautvast
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Publication number: 20210192807Abstract: An image processing system (IPS) and related method. The system (IPS) comprises an input interface (IN) for receiving an image (IM) of an object (OB) acquired by an imaging apparatus (IA). A kernel provider (KP) of the system (IPS) is configured to provide respective scatter kernels for at least two scatter types. A scatter correction module (SCM) of the system (IPS) is configured to perform a correction in the image based on the provided at least two kernels.Type: ApplicationFiled: May 28, 2019Publication date: June 24, 2021Inventors: BERND MENSER, PETER PRINSEN, DIRK SCHAEFER, JENS WIEGERT
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Patent number: 10932730Abstract: Method for estimating radiation dose received by a tissue of interest during an imaging scan comprising: i, obtaining image data of a body region including the tissue of interest, ii. sub-dividing the image data into axial slices, comprising tissue axial slices and non-tissue axial slices, iii. determining a net amount of radiation dose emitted or received by each axial slice by combining scan parameters of each axial slice with pre-calculated amounts of radiation dose, iiii summing the net amounts of radiation dose of all the tissue axial slices to obtain a tissue dose.Type: GrantFiled: December 16, 2016Date of Patent: March 2, 2021Assignee: KONINKLIJKE PHILIPS N.V.Inventors: Jens Wiegert, Bernd Menser, Peter Prinsen
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Publication number: 20210004533Abstract: Methods and systems for identifying anatomical phrases in medical text. Methods and systems described herein use a syntactic approach to generate lists of relevant terms and define a grammar on these terms. Methods and systems described then search for phrases in text that conform to the grammar.Type: ApplicationFiled: March 11, 2019Publication date: January 7, 2021Inventors: Peter Prinsen, Robbert Christiaan van Ommering
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Publication number: 20200273214Abstract: An imaging system includes a computed tomography (CT) imaging device (10) (optionally a spectral CT), an electronic processor (16, 50), and a non-transitory storage medium (18, 52) storing a neural network (40) trained on simulated imaging data (74) generated by Monte Carlo simulation (60) including simulation of at least one scattering mechanism (66) to convert CT imaging data to a scatter estimate in projection space or to convert an uncorrected reconstructed CT image to a scatter estimate in image space. The storage medium further stores instructions readable and executable by the electronic processor to reconstruct CT imaging data (12, 14) acquired by the CT imaging device to generate a scatter-corrected reconstructed CT image (42). This includes generating a scatter estimate (92, 112, 132, 162, 182) by applying the neural network to the acquired CT imaging data or to an uncorrected CT image (178) reconstructed from the acquired CT imaging data.Type: ApplicationFiled: September 28, 2018Publication date: August 27, 2020Inventors: SHIYU XU, PETER PRINSEN, JENS WIEGERT, RAVINDRA MOHAN MANJESHWAR
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Publication number: 20190261887Abstract: A device (10) configured to detect the presence of metal artifacts in a patient's eye includes a head mount (14) configured to receive at least a portion of the patient's head. At least one inductor coil (12) is disposed on or in the head mount and positioned to inductively couple with at least one eye of the patient's head received into the head mount. An inductance meter (18) is operably connected to the at least one inductor coil to measure an inductance as a change of frequency of the at least one inductor coil. A processor (22) is programmed to: determine whether the inductance is greater than an inductance threshold value; and generate an indication of at least one metal artifact when the inductance is greater than the inductance threshold value. A display component (24) is configured to display the indication.Type: ApplicationFiled: August 2, 2017Publication date: August 29, 2019Inventors: WILLEM POTZE, PETRUS CAROLUS MARIA FRISSEN, ADITYA MEHENDALE, JACEK LUKASZ KUSTRA, PETER PRINSEN, GUILLAUME LEOPOLD THEODORUS FREDERIK HAUTVAST
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Publication number: 20180368785Abstract: Method for estimating radiation dose received by a tissue of interest during an imaging scan comprising: i. obtaining image data of a body region including the tissue of interest, ii. sub-dividing the image data into axial slices, comprising tissue axial slices and non-tissue axial slices, iii. determining a net amount of radiation dose emitted or received by each axial slice by combining scan parameters of each axial slice with pre-calculated amounts of radiation dose, iiii summing the net amounts of radiation dose of all the tissue axial slices to obtain a tissue dose.Type: ApplicationFiled: December 16, 2016Publication date: December 27, 2018Inventors: Jens WIEGERT, Bernd MENSER, Peter PRINSEN
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Publication number: 20180140869Abstract: The invention relates to a device for determining positions of objects (1i) positioned in a measurement area, wherein the objects (1i) are capable of at least temporarily generating a magnetic field. The device comprises magnetometers (3i) arranged at a plurality of locations in a vicinity of the measurement area for locally measuring the magnetic field generated by the objects (1i), and an evaluation unit (5) coupled to the magnetometers (3i), the evaluation unit (5) being configured to determine the positions of the objects (1i) on the basis of the magnetic field measurements by the magnetometers (3i). The objects (1i) may be included in a human or animal body and may particularly be brachytherapy seeds.Type: ApplicationFiled: May 30, 2016Publication date: May 24, 2018Applicant: KONINKLIJKE PHILIPS N.V.Inventors: Petrus Carolus Maria Frissen, Willem Potze, Aditya Mehendale, Jacek Lukasz Kustra, Peter Prinsen, Andreas Goedicke
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Patent number: 9839404Abstract: A method for extending initial image data of a subject for dose estimation includes obtaining first image data of the subject for dose calculation, wherein the first image data has a first field of view. The method further includes obtaining second image data for extending the field of view of the first image data. The second image data has a second field of view that is larger than the first field of view. The method further includes extending the first field of view based on the second image data, producing extended image data.Type: GrantFiled: September 11, 2014Date of Patent: December 12, 2017Assignee: KONINKLIJKE PHILIPS N.V.Inventors: Heike Ruppertshofen, Cristian Lorenz, Jens Wiegert, Peter Prinsen, Roland Proksa
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Patent number: 9427198Abstract: System for live 3D x-ray viewing comprising an x-ray source, an x-ray detector, a processing unit, a monitor and means for detecting viewer's eyes, wherein the x-ray source and the x-ray detector are arranged at a movable C-arm. The x-ray source comprises two focal spots, wherein a separation of the two focal spots is adjustable so that the image acquisition angle between the two focal spots matches the viewing angle between the two eyes.Type: GrantFiled: September 13, 2012Date of Patent: August 30, 2016Assignee: KONINKLIJKE PHILIPS N.V.Inventors: Heidrun Steinhauser, Michael John Murdoch, Peter Prinsen
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Patent number: 9406128Abstract: The invention relates to an apparatus (18) for calculating an x-ray dose distribution within an object for a computed tomography examination. A primary flux determination unit (15) determines firstly a primary flux distribution within the object, wherein then this determined primary flux distribution is used as an initial total flux distribution by a total flux determination unit (16) while applying a six-flux model algorithm. This allows the determination of the total flux distribution to start with a relatively good first approximation of the total flux distribution such that the six-flux model algorithm can determine the total flux distribution very fast. The determined total flux distribution is finally used by a dose distribution determination unit (17) for determining a total dose distribution. The apparatus allows therefore for a very fast determination of x-ray dose distributions for computed tomography examinations.Type: GrantFiled: April 21, 2014Date of Patent: August 2, 2016Assignee: KONINKLIJKE PHILIPS N.V.Inventors: Peter Prinsen, Jens Wiegert, Cristian Lorenz, Heike Ruppertshofen
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Publication number: 20160206263Abstract: A method for extending initial image data of a subject for dose estimation includes obtaining first image data of the subject for dose calculation, wherein the first image data has a first field of view. The method further includes obtaining second image data for extending the field of view of the first image data. The second image data has a second field of view that is larger than the first field of view. The method further includes extending the first field of view based on the second image data, producing extended image data.Type: ApplicationFiled: September 11, 2014Publication date: July 21, 2016Inventors: Heike RUPPERTSHOFEN, Cristian LORENZ, Jens WIEGERT, Peter PRINSEN, Roland PROKSA
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Publication number: 20160035086Abstract: The invention relates to an apparatus (18) for calculating an x-ray dose distribution within an object for a computed tomography examination. A primary flux determination unit (15) determines firstly a primary flux distribution within the object, wherein then this determined primary flux distribution is used as an initial total flux distribution by a total flux determination unit (16) while applying a six-flux model algorithm. This allows the determination of the total flux distribution to start with a relatively good first approximation of the total flux distribution such that the six-flux model algorithm can determine the total flux distribution very fast. The determined total flux distribution is finally used by a dose distribution determination unit (17) for determining a total dose distribution. The apparatus allows therefore for a very fast determination of x-ray dose distributions for computed tomography examinations.Type: ApplicationFiled: April 21, 2014Publication date: February 4, 2016Inventors: Peter PRINSEN, Jens WIEGERT, Cristian LORENZ, Heike RUPPERTSHOFEN
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Publication number: 20150146843Abstract: System for live 3D x-ray viewing comprising an x-ray source, an x-ray detector, a processing unit, a monitor and means for detecting viewer's eyes, wherein the x- ray source and the x-ray detector are arranged at a movable C-arm. The x-ray source comprises two focal spots, wherein a separation of the two focal spots is adjustable so that the image acquisition angle between the two focal spots matches the viewing angle between the two eyes.Type: ApplicationFiled: September 13, 2012Publication date: May 28, 2015Applicant: Koninklijke Philips N.V.Inventors: Heidrun Steinhauser, Michael John Murdoch, Peter Prinsen