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1. 发明公开

US20230148382A1 FOCUS OPTIMIZATION FOR PREDICTION IN MULTI-FREQUENCY ULTRASOUND IMAGING 审中-公开
公开(公告)号：US20230148382A1
公开(公告)日：2023-05-11
申请号：US17916103
申请日：2021-03-25
申请人： KONINKLIJKE PHILIPS N.V.
发明人： Nikolas David SCHNELLBÄCHER , Tobias WISSEL , Hannes NICKISCH , Michael GRASS
IPC分类号： A61B8/00 , A61B8/12 , A61B8/08 , G01S15/89 , G06V10/82 , G06V10/774
CPC分类号： A61B8/585 , A61B8/12 , A61B8/467 , A61B8/5223 , A61B8/54 , G01S15/8952 , G06V10/82 , G06V10/774 , A61B8/0891 , G06V2201/03
摘要： An imaging system (IS), comprising an image acquisition unit (AQ) for acquisition of image data (I1) of an object (OB). The image acquisition is based on an imaging signal imitable by the unit (AQ) to interact with the object. The image acquisition unit (AQ) is adjustable to operate at different acquisition parameters that determine a property of the imaging signal. A predictor component (PC) predicts, based at least on the acquired image data (I1), one or more properties of the object. An acquisition parameter adjuster (PA) adjusts, based on the predicted object properties, the acquisition parameter at which the image acquisition unit (AQ) is to acquire follow-up image data (I2).

2. 发明申请

US20220175332A1 ANGIOGRAPHY DERIVED CORONARY FLOW 有权
公开(公告)号：US20220175332A1
公开(公告)日：2022-06-09
申请号：US17540435
申请日：2021-12-02
申请人： KONINKLIJKE PHILIPS N.V.
发明人： Christian HAASE , Michael GRASS
IPC分类号： A61B6/00
摘要： An apparatus and a method for assessing a vasculature is provided in which a time series of diagnostic images is used in combination with at least one boundary parameter associated with said time series to determine a quantitative fluid dynamics parameter indicative of the fluid flow through the vasculature using a trained classifier. By providing both, the time series of diagnostic images and the at least one boundary parameter to the determination, it is ensured that the classifier is provided with consistent data allowing for a more accurate determination of the quantitative fluid dynamics parameter.

3. 发明申请

US20220079455A1 APPARATUS FOR DETERMINING A FUNCTIONAL INDEX FOR STENOSIS ASSESSMENT 有权
公开(公告)号：US20220079455A1
公开(公告)日：2022-03-17
申请号：US17531899
申请日：2021-11-22
申请人： KONINKLIJKE PHILIPS N.V.
发明人： 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分类号： A61B5/02 , G06T7/62 , A61B5/021 , A61B5/026 , A61B5/107 , A61B6/00
摘要： 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.

4. 发明申请

US20210401274A1 APPARATUS FOR DESIGNING OR CONFIGURING A TRANS-BRONCHIAL NEEDLE GUIDE 有权
公开(公告)号：US20210401274A1
公开(公告)日：2021-12-30
申请号：US17281299
申请日：2019-09-25
申请人： KONINKLIJKE PHILIPS N.V.
发明人： Christian HAASE , Michael GRASS
IPC分类号： A61B1/01 , A61B1/267 , A61B1/00 , A61B90/00
摘要： The present invention relates to an apparatus (10) for designing or configuring a guide for a bronchoscope or guiding sheath. It is described to providing (310) a processing unit with at least one diagnostic image of a patient, wherein the at least one diagnostic image comprises image data of a region of interest and image data of the bronchial tree or vascular system in the vicinity of the region of interest. The processing unit determines (320) a position of the region of interest. The processing unit determines (330) a position in the bronchial tree or vascular system from which an intervention is to be carried out via a bronchoscope or guiding sheath. The intervention will comprise movement of a part of an intervention device towards the region of interest, wherein the bronchoscope or guiding sheath is configured such that the part of the intervention device can exit an end of the bronchoscope or guiding sheath. The processing unit determines (340) an angle of movement of the part of the intervention device with respect to a longitudinal axis of the bronchoscope or guiding sheath to guide the part of the intervention device towards the region of interest. The determination comprises utilization of the position of the region of interest and the position in the bronchial tree or vascular system from which the intervention is to be carried out. The processing unit designs (350) or configures (360) a guide to operate in conjunction with the bronchoscope or guiding sheath, the design or configuration comprising utilization of the determined angle of movement of the part of the intervention device. The guide is configured to operate in conjunction with the bronchoscope or guiding sheath to guide the part of the intervention device exiting the end of the bronchoscope or guiding sheath towards the region of interest at the determined angle of movement.

5. 发明申请

US20210161495A1 BLOOD FLOW MEASUREMENT BASED ON VESSEL-MAP SLOPE 有权
公开(公告)号：US20210161495A1
公开(公告)日：2021-06-03
申请号：US17263469
申请日：2019-08-02
申请人： KONINKLIJKE PHILIPS N.V.
发明人： Christian HAASE , Michael GRASS , Romane Isabelle Marie-Bernard GAURIAU , Martijn Anne VAN LAVIEREN
IPC分类号： A61B6/00 , G16H50/20 , G06T7/00
摘要： An apparatus for assessing a coronary vasculature and a corresponding method are provided which allow to globally assess a coronary artery disease directly from the contrast agent dynamics as derived from diagnostic images acquired using an invasive medical imaging modality by following the time course of the area occupied by the vessels in the diagnostic images.

6. 发明申请

US20200281660A1 MEDICAL INSTUMENT TRACKING 审中-公开
公开(公告)号：US20200281660A1
公开(公告)日：2020-09-10
申请号：US16062636
申请日：2016-12-16
申请人： KONINKLIJKE PHILIPS N.V.
发明人： Robert Johannes Frederik HOMAN , Ronaldus Frederik Johannes HOLTHUIZEN , Michael GRASS , Harold Agnes Wilhelmus SCHMEITZ , Bernardus Hendrikus Wilhelmus HENDRIKS , Thirukumaran Thangaraj KANAGASABAPATHI
IPC分类号： A61B34/20 , A61B90/96 , A61B90/92 , G06T7/246 , G06T7/73
摘要： The present invention relates to medical instrument tracking. In order to facilitate tracking a medical instrument, a system (100) is provided for tracking a medical instrument. The system comprises an instrument marker (14), a tracking arrangement (16), and a processing unit (18). The instrument marker is attached to the medical instrument on a marker position (20). The tracking system is configured to detect line segments (22) in the 5 field of interest and to detect the attached instrument marker. The processing unit is configured to identify a line segment (24) on which the attached instrument marker is detected as the medical instrument, and to determine an offset (26) between a position of a medical instrument tip (28) and the marker (14) by touching a reference marker (34) on the subject with the medical instrument (10).

7. 发明申请

US20190209107A1 SYSTEM AND METHOD FOR MULTI-BEAM X-RAY EXPOSURE FOR 4D IMAGING 审中-公开
公开(公告)号：US20190209107A1
公开(公告)日：2019-07-11
申请号：US16099285
申请日：2017-05-12
申请人： KONINKLIJKE PHILIPS N.V.
发明人： Gereon VOGTMEIER , Klaus Juergen ENGEL , Michael GRASS , Bernd MENSER , Heidrun STEINHAUSER , Alberto FAZZI , Herman STEGEHUIS , Dirk SCHAEFER
IPC分类号： A61B6/00 , G06T11/00
CPC分类号： A61B6/4007 , A61B6/4291 , A61B6/482 , A61B6/503 , A61B6/5241 , A61B6/54 , G06T11/008 , G06T2200/04 , G06T2207/10116
摘要： 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.

8. 发明申请

US20190046047A1 APPARATUS FOR VESSEL CHARACTERIZATION 审中-公开
公开(公告)号：US20190046047A1
公开(公告)日：2019-02-14
申请号：US16080243
申请日：2017-02-28
申请人： KONINKLIJKE PHILIPS N.V.
发明人： Christian HAASE , Michael GRASS , Dirk SCHAEFER
IPC分类号： A61B5/02 , A61B5/00 , A61B5/0215 , A61B5/06 , G06T7/00
摘要： 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.

9. 发明申请

US20180211729A1 ASSISTANCE DEVICE AND METHOD FOR AN INTERVENTIONAL HEMODYNAMIC MEASUREMENT 审中-公开
公开(公告)号：US20180211729A1
公开(公告)日：2018-07-26
申请号：US15745162
申请日：2016-07-26
申请人： KONINKLIJKE PHILIPS N.V.
发明人： Michael GRASS , Christian HAASE , Peter Maria Johannes RONGEN , Roland Wilhelmus Maria BULLENS , Arjen VAN DER HORST
IPC分类号： G16H50/50 , G16H10/60
CPC分类号： G16H50/50 , G06F2217/16 , G16H10/60
摘要： The invention relates to an assistance device, an assistance system and an assistance method for assisting a practitioner in an interventional hemodynamic (e.g fractional flow reserve (FFR)) measurement on a subject. The FFR pressure measurements are combined with an, for example, angiography-based assessment of the coronary vessel geometry. An advanced computational fluid dynamics model may be employed to add flow and myocardial resistance data based on the interventional pressure values and on a vascular model generated prior to the intervention. In case that these data are available prior to the intervention, the location of most optimal positions for pressure measurements can be pre-calculated and by overlay of the vessel tree, for example, on the X-ray projection, advice can be given for the interventional cardiologist during the intervention.

10. 发明申请

US20180211423A1 COMPUTED TOMOGRAPHY IMAGE GENERATION APPARATUS 审中-公开
公开(公告)号：US20180211423A1
公开(公告)日：2018-07-26
申请号：US15756605
申请日：2016-10-12
申请人： KONINKLIJKE PHILIPS N.V.
发明人： Michael GRASS , Robert Johannes Frederik HOMAN , Roland PROKSA
IPC分类号： G06T11/00 , A61B6/03 , A61B6/00
CPC分类号： G06T11/008 , A61B6/032 , A61B6/501 , A61B6/5205 , A61B6/5223 , A61B6/5264 , G06T11/006 , G06T2211/412 , G06T2211/424
摘要： The invention relates to a CT image generation apparatus (10) for generating an image of a head. Transformations of a first CT image of the head are determined for different measured projection groups, wherein for a measured projection group a transformation is determined such that a degree of similarity between the measured projection group and a calculated projection group is increased, wherein the calculated projection group is calculated by transforming the first CT image in accordance with the transformation to be determined and by forward projecting the transformed first CT image. A motion corrected three-dimensional second CT image is reconstructed based on the measured projections and the transformations determined for the different measured projection groups. This allows providing a high quality CT image of the head, even if a patient cannot stop moving the head in case of, for instance, stroke.

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