公开(公告)号：US11071505B2

公开(公告)日：2021-07-27

申请号：US16099217

申请日：2017-05-08

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Dirk Schaefer ,  Michael Grass

IPC: A61B6/00 ,  A61B6/12

Abstract: A system (SC) for controlling operation of a multi-focal-spot X-ray imager (IA). The system comprises a projection direction determiner (PDD) configured to determine a projection direction for an object (OB) to be imaged, based on a geometric structure of a model m(OB) for the object (OB). A selector (SX) of the system is configured to select, from the imager (IA)'s plurality of focal-spot-detector pairs (IPj) with different optical axes (OXj), at least one target pair whose optical axis corresponds to the determined projection direction.

公开(公告)号：US10952810B2

公开(公告)日：2021-03-23

申请号：US14411526

申请日：2013-07-02

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Michael Grass ,  Raymond Chan ,  Robert Manzke

IPC: A61B90/00 ,  A61B5/06 ,  G01L1/24 ,  A61B5/00 ,  A61B5/107 ,  A61B34/20 ,  A61B5/113

Abstract: A method and system for generating imaging data during a medical intervention are provided. An external optical sensor is attached on the patient's body, and includes at least one external orientation fiber core configured to measure an orientation of the external optical sensor relative to a point of reference. The external optical sensor is interrogated to generate external sensor orientation information during the medical intervention. That information is used to estimate an orientation of the external optical sensor, which is then displayed during the medical intervention.

公开(公告)号：US10939881B2

公开(公告)日：2021-03-09

申请号：US15318235

申请日：2015-06-10

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Dirk Schäfer ,  Eberhard Sebastian Hansis ,  Niels Nijhof ,  Michael Grass

IPC: A61B6/12 ,  A61B8/08 ,  A61B8/00 ,  A61B34/20 ,  A61B8/12 ,  A61B6/00 ,  A61B8/14

Abstract: The present invention relates to a guidance device (10) for a TEE probe (20), a medical imaging system (1), a method for guiding a TEE probe (20), a computer program element for controlling such device and a computer readable medium having stored such computer program element. The guidance device (10) for a TEE probe (20) comprises an image data provision unit (11), and a processing unit (12). The image data provision unit (11) is configured to provide first image data showing an interventional device (40) and a TEE probe (20) in an initial position and orientation. The processing unit (12) is configured to determine a centerline of the interventional device (40) in the first image data. The processing unit (12) is configured to determine a plane (41) orthogonal to a tangent of the centerline as viewing plane. The processing unit (12) is configured to calculate an imaging plane and an imaging orientation of the TEE probe (20) to lie approximately in the viewing plane. The processing unit (12) is configured to provide the calculated data as guidance data.

公开(公告)号：US10898274B2

公开(公告)日：2021-01-26

申请号：US16314939

申请日：2017-07-06

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Michael Grass ,  Julien Senegas

IPC: A61B34/20 ,  A61B5/06 ,  A61B5/11 ,  G06F3/01 ,  A61B90/00 ,  G06T7/246 ,  G06F3/03 ,  A61B5/00 ,  A61B17/00 ,  A61B34/30

Abstract: A measurement system for measuring a length of movement of an elongate intraluminal device. Cameras are included to obtain three dimensional video data of movement of an elongate intraluminal device by hand. The video data is processed to track the movement of the elongate intraluminal device in three dimensions to provide the length measurement of movement of the elongate intraluminal device.

公开(公告)号：US10881365B2

公开(公告)日：2021-01-05

申请号：US16099285

申请日：2017-05-12

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Gereon Vogtmeier ,  Klaus Juergen Engel ,  Michael Grass ,  Bernd Menser ,  Heidrun Steinhauser ,  Alberto Fazzi ,  Herman Stegehuis ,  Dirk Schaefer

IPC: A61B6/00

Abstract: An interventional X-ray system is proposed, the system including a multi X-ray source unit positioned below a patient table. This ‘multiblock’ may comprise several x-ray sources with focal spot positions distributed along the x-y (table) plane. The x-ray sources are operable in a switching scheme in which certain x-ray sources may be activated in parallel and also sequential switching between such groups is intended. The switching may be carried out so that several images with different projection angles can be acquired in parallel. In other words, an optimal multi-beam X-ray exposure is suggested, wherein fast switching in one dimension and simultaneous exposure in the 2nd dimension is applied.

公开(公告)号：US10685452B2

公开(公告)日：2020-06-16

申请号：US15574962

申请日：2016-06-17

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Rolf Dieter Bippus ,  Sven Kabus ,  Michael Grass

IPC: G06T7/35 ,  G06T7/33 ,  G06T3/00 ,  G06T11/00

Abstract: The invention relates to a registration apparatus (14) for registering images comprising a unit (11) for providing a first and a second image of an object, such that an image element of the first image at a respective position has been reconstructed by multiplying projection data values of rays traversing the image element with weights and by backprojecting the weighted projection data values, a unit (12) for providing a confidence map comprising for different positions in the first image confidence values being indicative of a likelihood that an image feature is caused by a structure of the object, the confidence value being calculated as a sum of a function, which depends on the respective weight, over the rays traversing the respective image element, and a unit (13) for determining a transformation for registering the first and second image to each other under consideration of the confidence map.

公开(公告)号：US10405821B2

公开(公告)日：2019-09-10

申请号：US15316215

申请日：2015-06-01

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Eberhard Sebastian Hansis ,  Dirk Schaefer ,  Michael Grass

IPC: A61B6/00 ,  G06T7/73 ,  A61B5/00 ,  G06T11/60

Abstract: The present invention relates to an imaging system (10) for a vertebral level, an identification method for a vertebral level, a computer program element for controlling such system and a computer readable medium having stored such computer program element. The imaging system (10) comprises a determination unit (11), a definition unit (12), an imaging unit (13), and a processing unit (14). The determination unit (11) determines a target vertebral level. The definition unit (12) defines an anatomical landmark of a spine. The imaging unit (13) provides a series of X-ray images along the spine based on the landmark. The processing unit (14) identifies the target vertebral level in at least one of the X-ray images. The processing unit (14) further stitches the X-ray images to a continuous panoramic image of the spine and identifies the target vertebral level in the panoramic image.

公开(公告)号：US10052032B2

公开(公告)日：2018-08-21

申请号：US14784698

申请日：2014-04-16

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Michael Grass ,  Dirk Schaefer ,  Holger Schmitt

IPC: A61B6/03 ,  A61B5/02 ,  A61B5/0215 ,  A61B5/026 ,  A61B5/00 ,  A61B8/14 ,  A61B5/055 ,  A61B90/00 ,  A61B19/00 ,  A61B34/10

CPC classification number: A61B5/02007 ,  A61B5/0215 ,  A61B5/026 ,  A61B5/055 ,  A61B5/6851 ,  A61B5/742 ,  A61B6/032 ,  A61B6/037 ,  A61B8/14 ,  A61B2034/104 ,  A61B2034/105 ,  A61B2034/107 ,  A61B2090/364 ,  A61B2090/3782 ,  G16H50/50

Abstract: The present invention relates to stenosis therapy planning. A first volumetric data set is received by medical imaging of at least part of an artery comprising a stenosis. At least one two-dimensional image data (of the stenosis is received. A first arterial pressure drop is determined around the stenosis. A second volumetric data set is generated by registering the at least one two-dimensional image data with the first volumetric data set. A third volumetric data set is generated by simulating a geometry modification of the stenosis in the second volumetric data set and a second arterial pressure drop is estimated around the stenosis in the third volumetric data set.

公开(公告)号：US09959640B2

公开(公告)日：2018-05-01

申请号：US15308378

申请日：2015-09-15

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Thomas Koehler ,  Roland Proksa ,  Michael Grass

IPC: G06K9/00 ,  G06T11/00 ,  G06T7/00 ,  G06T11/60 ,  G06K9/62 ,  G06T5/50 ,  A61B6/00 ,  A61B6/03

CPC classification number: G06T11/008 ,  A61B6/032 ,  A61B6/5235 ,  A61B6/5282 ,  G06K9/6215 ,  G06T5/50 ,  G06T7/0012 ,  G06T11/006 ,  G06T11/60 ,  G06T2207/10081 ,  G06T2207/30004 ,  G06T2211/408 ,  G06T2211/424

Abstract: A method includes performing a first pass of an iterative image reconstruction in which an intermediate first spectral image and an intermediate second spectral image are generated using an iterative image reconstruction algorithm, start first spectral and second spectral images, and initial first spectral regularization and second spectral regularization parameters, updating at least one of the initial first spectral regularization or second spectral regularization parameters, thereby creating an updated first spectral regularization or second spectral regularization parameter, based at least on a sharpness of one of the intermediate first spectral or second spectral images, and performing a subsequent pass of the iterative image reconstruction in which an updated intermediate first spectral and second spectral image is generated using the iterative image reconstruction algorithm, the intermediate first spectral and second spectral images, and the updated first spectral regularization and Compton scatter regularization parameters.

公开(公告)号：US09895117B2

公开(公告)日：2018-02-20

申请号：US15310933

申请日：2015-10-01

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Michael Grass ,  Dirk Schafer ,  Thomas Koehler

IPC: G03H5/00 ,  A61B6/00

CPC classification number: A61B6/4291 ,  A61B6/484 ,  A61B6/503 ,  A61B6/504 ,  A61B6/527

Abstract: The invention relates to a grating device for phase contrast and/or dark-field imaging of a movable object, an interferometer unit, a phase contrast and/or dark-field imaging system, a phase contrast and/or dark-field imaging method, a computer program element for controlling such device and a computer readable medium having stored such computer program element. The grating device comprises a grating unit, an actuation unit, a motion detecting unit, and a control unit. The actuation unit is configured to position the grating unit in different sampling positions relative to the moveable object. The motion detecting unit is configured to detect a motion of the movable object. The detected motion of the moveable object may be a repetitive motion. The control unit is configured to control the actuation unit to position the grating unit in the different sampling positions based on the detected motion of the movable object.