公开(公告)号：US12086910B2

公开(公告)日：2024-09-10

申请号：US17270712

申请日：2019-08-20

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Dirk Schaefer ,  Christian Haase ,  Michael Grass

IPC: G06T11/00 ,  A61B6/40

CPC classification number: G06T11/008 ,  A61B6/4085 ,  G06T2211/412

Abstract: An image processing system (IPS), comprising an input interface (IN) for receiving a projection image from a plurality of projection images of a movable object (PAT) acquired along different directions by an imaging apparatus (XA), the projection images defined in a projection domain spanned by a radiation sensitive surface of the detector (D). The system includes a motion checker (MC) configured to operate in the projection domain to decide whether the projection image is corrupted by motion of the object during acquisition.

公开(公告)号：US11881299B2

公开(公告)日：2024-01-23

申请号：US17526001

申请日：2021-11-15

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Michael Grass ,  Hanno Heyke Homann ,  Bram Antonius Philomena Van Rens ,  Peter Maria Johannes Rongen ,  Melike Bozkaya ,  Roland Wilhelmus Maria Bullens ,  Arjen Van Der Horst

IPC: G16H30/20 ,  G16H40/63 ,  G16H30/40 ,  G16H50/50

CPC classification number: G16H30/20 ,  G16H30/40 ,  G16H40/63 ,  G16H50/50

Abstract: Systems and related methods to estimate, for a liquid dynamic system, flow or resistance based on a model of an object and pressure measurements collected in-situ at said object. Alternatively, pressure flow measurements are collected and pressure or resistance is being estimated.

公开(公告)号：US11690518B2

公开(公告)日：2023-07-04

申请号：US17531899

申请日：2021-11-22

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Christian Haase ,  Michael Grass ,  Bram Antonius Philomena Van Rens ,  Roland Wilhelmus Maria Bullens ,  Peter Maria Johannes Rongen ,  Arjen Van Der Horst ,  Raoul Florent ,  Romane Isabelle Marie-Bernard Gauriau ,  Javier Olivan Bescos ,  Holger Schmitt ,  Vincent Maurice André Auvray

IPC: G06K9/00 ,  A61B5/02 ,  G06T7/62 ,  A61B5/021 ,  A61B5/026 ,  A61B5/107 ,  A61B6/00

CPC classification number: A61B5/02007 ,  A61B5/021 ,  A61B5/026 ,  A61B5/1075 ,  A61B6/5217 ,  G06T7/62 ,  A61B5/1079 ,  G06T2207/10116 ,  G06T2207/30104

Abstract: An apparatus for determining a functional index for stenosis assessment of a vessel is provided. The apparatus comprises an input interface (40) and a processing unit (50). The input interface is configured to obtain image data (30) representing a two-dimensional representation of a vessel (6). The processing unit (50) is configured to determine a course of the vessel (6) and a width (w1, w2) of the vessel along its course in the image data and is further configured to determine the functional index for stenosis assessment of the vessel based on the width of the vessel in the image data.

公开(公告)号：US10959688B2

公开(公告)日：2021-03-30

申请号：US15525079

申请日：2015-11-11

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Bernhard Johannes Brendel ,  Roland Proksa ,  Thomas Koehler ,  Ewald Roessl ,  Heiner Daerr ,  Michael Grass ,  Axel Thran

IPC: A61B6/06 ,  A61B6/03 ,  A61B6/00 ,  A61B6/04

Abstract: An imaging system includes a radiation source (108) configured to rotate about an examination region (106) and emit radiation that traverses the examination region. The imaging system further includes an array of radiation sensitive pixels (112) configured to detect radiation traversing the examination region and output a signal indicative of the detected radiation. The array of radiation sensitive pixels is disposed opposite the radiation source, across the examination region. The imaging system further includes a rigid flux filter device (130) disposed in the examination region between the radiation source and the radiation sensitive detector array of photon counting pixels. The rigid flux filter device is configured to filter the radiation traversing the examination region and incident thereon. The radiation leaving the rigid flux filter device has a predetermined flux.

公开(公告)号：US10813615B2

公开(公告)日：2020-10-27

申请号：US15038677

申请日：2014-11-05

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： John Allan Bracken ,  Niels Nijhof ,  Michael Grass

IPC: A61B6/00 ,  A61B8/12 ,  G06T7/00 ,  A61B6/12 ,  A61B8/08 ,  A61B90/00 ,  A61B34/00 ,  A61B8/00 ,  A61B17/00 ,  A61B8/14

Abstract: An medical viewing system (10) adapted for acquiring a first set of X-ray fluoroscopy images of an ultrasonic probe (40) of an echocardiography imaging device at two different viewing angles, wherein a processing unit (30) of the system is adapted for registering live echocardiography and live X-ray images based on the first set of X-ray fluoroscopy images, localizing cusp nadirs positions of a set of characteristic features (42, 44, 46) in the X-ray subsequent frames, establishing a set of markers to match the localized positions of the cusp nadirs characteristic features (42, 44, 46), and determining an optimal viewing angle of the X-ray image acquisition device (12), in which the markers of the second set of markers lie on a single line and are equidistant from each other in the X-ray field of view. This enables a precise alignment of the X-ray imaging device, especially for TAVR procedures.

公开(公告)号：US10729340B2

公开(公告)日：2020-08-04

申请号：US14782605

申请日：2014-04-09

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Tobias Klinder ,  Holger Schmitt ,  Michael Grass

IPC: A61B5/026 ,  G16H40/63 ,  A61B5/02 ,  G16H50/50 ,  G16H30/40 ,  A61B5/06 ,  A61B17/00 ,  A61B90/00 ,  A61B8/12 ,  A61B5/107 ,  A61B5/00 ,  A61B8/08 ,  A61B34/20 ,  A61B34/10 ,  A61B8/00

Abstract: A medical system includes a medical instrument (102) configured for interventional deployment and a shape sensing system (104) mounted on or in the medical instrument and configured to measure a shape of the medical instrument during the interventional deployment. An imaging device (106) is mounted on or in the medical instrument and configured to image a lumen in which the imaging device is deployed. A registration module (140) is configured to register the shape of the medical instrument to an image of the lumen at a particular time to reconstruct a three-dimensional geometry of the lumen, accounting for motion.

公开(公告)号：US10694955B2

公开(公告)日：2020-06-30

申请号：US16080243

申请日：2017-02-28

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Christian Haase ,  Michael Grass ,  Dirk Schaefer

IPC: A61B5/0215 ,  A61B5/107 ,  A61B5/02 ,  A61B5/06 ,  A61B5/00 ,  G06T7/00 ,  A61B6/12 ,  A61B8/08

Abstract: The invention discloses an apparatus (2), a system (1) and a method (100) for characterization of vessels and for vessel modeling. The cross sectional area (A1) of the vessel is derived from pressure measurements (p1, p2) obtained by an instrument (3) from within the vessel. When multiple cross sectional areas (A1, A2) are derived for multiple reference positions (r1, r2) based on pressure measurements (p1, p2, p3) along the vessel, a representation (20, 30) of the vessel can be rendered, without requiring any imaging modality. Furthermore, the effect of the pulsatile blood flow on the elasticity of the vessel walls can be visualized, supporting assessment of a stenosis or an aneurysm formation along the vessel.

公开(公告)号：US10552958B2

公开(公告)日：2020-02-04

申请号：US15570620

申请日：2016-04-26

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Eberhard Sebastian Hansis ,  Holger Schmitt ,  Michael Grass ,  Dirk Schaefer ,  Hanno Heyke Homann ,  Tobias Klinder ,  Christian Haase

IPC: G06K9/00 ,  G06T7/00 ,  G06T17/20 ,  A61B5/0215 ,  A61B5/026 ,  A61B5/00 ,  A61B6/03 ,  A61B6/00 ,  G06T7/60

Abstract: The present invention relates to a device (1) for fractional flow reserve determination, the device (1) comprising: a model source (10) configured to provide a first three-dimensional model (3DM1) of a portion of an imaged vascular vessel tree (VVT) surrounding a stenosed vessel segment (SVS) and configured to provide a second three-dimensional model (3DM2) of a pressure wire insertable into the vascular vessel tree (VVT); and a processor (20) configured to calculate a first blood flow (Q1) through the stenosed vessel segment (SVS) with the pressure wire (PW) inserted into the vascular vessel tree (VVT) based on the first and the second three-dimensional model and to calculate a second blood flow (Q2) through the stenosed vessel segment (SVS) without the pressure wire (PW) inserted into the vascular vessel tree (VVT) based on the first three-dimensional model (3DM1) and to determine a first fractional flow reserve value (FFR1) to be measured with the pressure wire (PW) inserted into the vascular vessel tree (VVT) based on the first blood flow (Q1) and to determine a second fractional flow reserve value (FFR2) to be measured without the pressure wire (PW) inserted into the vascular vessel tree (VVT) based on the second blood flow (Q1).

公开(公告)号：US10213167B2

公开(公告)日：2019-02-26

申请号：US15316540

申请日：2015-05-26

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Rolf Dieter Bippus ,  Thomas Koehler ,  Michael Grass

IPC: A61B6/00 ,  G06T11/00 ,  A61B6/03

Abstract: A method includes obtaining a set of energy dependent data generated from a spectral scan. The set of energy dependent data includes a sub-set of data corresponding to only contrast agent. The method further includes separating the sub-set of data from other data of the energy dependent data. The other data includes non-contrast agent data. The method further includes scaling the sub-set of data to change a concentration of the contrast agent in the sub-set of data from that of the sub-set of data. The method further includes visually presenting at least the scaled sub-set of data.

公开(公告)号：US10172574B2

公开(公告)日：2019-01-08

申请号：US15039680

申请日：2014-10-27

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Dirk Schäfer ,  Robert Johannes Frederik Homan ,  Michael Grass

IPC: A61B6/08 ,  A61B6/04 ,  A61B6/00 ,  A61B90/00 ,  A61B6/02 ,  A61B5/00

Abstract: An interventional X-ray system (10), includes a processing unit (30), a table (20) for receiving a patient (44), an X-ray image acquisition device (12) having an X-ray source (16) and an X-ray detector (18) and at least one optical camera (46) adapted for acquiring optical images of a patient (44) situated on the table (20) and for providing image data to the processing unit (30). The processing unit (30) is adapted for segmenting an outline (64) of a patient from an existing three-dimensional model, for receiving acquired images from the at least one camera (46) for determining an optical outline (66) of the patient, for registering the optical outline (66) to the outline (64) obtained in the segmentation and for determining a translation vector (48) representing a required movement of the table for coinciding a center (42) of the anatomy of interest given in the three-dimensional model with the iso-center (38) of a rotational X-ray scan that will be performed. By this process, no X-ray exposure or injection of contrast agent is required.