公开(公告)号：US20240264008A1

公开(公告)日：2024-08-08

申请号：US18626378

申请日：2024-04-04

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Michael Grass ,  Juergen Erwin RAHMER ,  Bernhard GLEICH

IPC: G01K7/36 ,  A61B1/00 ,  A61B5/00 ,  A61B5/0215 ,  A61B5/05 ,  A61B5/06 ,  A61B34/20 ,  A61B90/00 ,  G01K1/26 ,  G01K13/04 ,  G01L9/00

CPC classification number: G01K7/36 ,  A61B1/00158 ,  A61B5/0215 ,  A61B5/02152 ,  A61B5/05 ,  A61B5/062 ,  A61B5/6851 ,  A61B5/6852 ,  A61B34/20 ,  A61B90/36 ,  A61B90/39 ,  G01K1/26 ,  G01K13/04 ,  G01L9/0001 ,  G01L9/007 ,  A61B5/02158 ,  A61B2034/2051 ,  A61B2034/2072 ,  A61B2090/3958 ,  A61B2090/3966 ,  A61B2562/0223

Abstract: The invention relates to a marker device and a tracking system for tracking the marker device, wherein the marker device comprises a rotationally oscillatable magnetic object and wherein the rotational oscillation is excitable by an external magnetic field, i.e. a magnetic field which is generated by a magnetic field providing unit 20, 31 that is located outside of the marker device. The rotational oscillation of the magnetic object induces a current in coils, wherein based on these induced currents the position and optionally also the orientation of the marker device is determined. This wireless kind of tracking can be carried out with relatively small marker devices, which can be placed, for instance, in a guidewire, the marker devices can be read out over a relatively large distance and it is possible to use a single marker device for six degrees of freedom localization.

公开(公告)号：US20210244305A1

公开(公告)日：2021-08-12

申请号：US17250141

申请日：2019-06-11

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Bernhard GLEICH ,  Jürgen Erwin RAHMER

IPC: A61B5/05 ,  A61B5/0215 ,  A61B5/00 ,  G01L9/00

Abstract: A wireless pressure sensing unit (20) comprises a membrane (25) forming an outer wall portion of a cavity and two permanent magnets (26,28) inside the cavity. One magnet is coupled to the membrane, and at least one magnet is free to oscillate with a rotational movement. At least one is free to oscillate with a rotational movement. The oscillation takes place at a resonance frequency, which is a function of the sensed pressure, which pressure influences the spacing between the two permanent magnets. This oscillation frequency can be sensed remotely by measuring a magnetic field altered by the oscillation. The wireless pressure sensing unit may be provided on a catheter (21) or guidewire.

公开(公告)号：US20220237787A1

公开(公告)日：2022-07-28

申请号：US17621718

申请日：2020-06-24

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Arne EWALD ,  Rudolf Mathias Johannes Nicolaas LAMERICHS ,  Nick FLASCHNER ,  Bernhard GLEICH ,  Peter BOERNERT ,  Ingmar GRAESSLIN ,  Johannes Adrianus OVERWEG

IPC: G06T7/00 ,  G06N3/08

Abstract: The present disclosure relates to a medical imaging method, comprising: receiving (201) a set of subject parameters descriptive of a subject; in response to inputting (203) the set of subject parameters into a trained deep neural network, DNN, receiving (205) from the trained DNN a predicted task; presenting the task to the subject; controlling (207) an MRI system (700) for acquiring fMRI data from the subject in response to the predicted task performed by the subject during the acquisition

公开(公告)号：US20220028133A1

公开(公告)日：2022-01-27

申请号：US17299804

申请日：2019-11-26

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Arne EWALD ,  Nick FLAESCHNER ,  Bernhard GLEICH ,  Ingmar GRAESSLIN ,  Peter BOERNERT ,  Ingo SCHMALE ,  Johannes Adrianus OVERWEG

IPC: G06T11/00 ,  G01R33/56 ,  G06N3/04 ,  G01R33/48 ,  G01R33/565

Abstract: The invention provides for a medical imaging system (100, 400) comprising a memory (110) storing machine executable instructions (120) and a configured artificial neural network (122). The medical imaging system further comprises a processor (104) configured for controlling the medical imaging system. Execution of the machine executable instructions causes the processor to receive (200) magnetic resonance imaging data (124), wherein the magnetic resonance imaging data is BOLD functional magnetic resonance imaging data descriptive of a time dependent BOLD signal (1100) for each of a set of voxels. Execution of the machine executable instructions further causes the processor to construct (202) a set of initial signals (126) by reconstructing the time dependent BOLD signal for each of the set of voxels using the magnetic resonance imaging data. Execution of the machine executable instructions further causes the processor to receive (204) a set of modified signals (128) in response to inputting the set of initial signals into the configured artificial neural network. The configured artificial neural network is configured for removing physiological artifacts from the set of initial signals.

公开(公告)号：US20150300987A1

公开(公告)日：2015-10-22

申请号：US14364954

申请日：2012-12-14

Applicant: KONINKLIJKE PHILIPS N.V. ,  PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH

Inventor： Jurgen Erwin RAHMER ,  Bernhard GLEICH ,  Jurgen WEIZENECKER

IPC: G01N27/72 ,  A61B5/05 ,  G06T7/00

CPC classification number: G01N27/72 ,  A61B5/0515 ,  A61B5/7203 ,  A61B2576/00 ,  G01R33/1276 ,  G06T7/0012

Abstract: The present invention relates to an apparatus (100) for detecting magnetic particles in a field of view (28), which apparatus comprises selection means, drive means, receiving means for acquiring detection signals, and reconstruction means (152) for reconstructing an image of the field of view (28) from detection signals, said detection signals including a plurality of frequency components, wherein one or more frequency components are selected and/or weighted by use of a frequency component specific signal quality factor obtained from background signal measurements and wherein only selected and/or weighted frequency components are used for reconstruction of the image.

Abstract translation: 本发明涉及一种用于在视野（28）中检测磁性粒子的装置（100），该装置包括选择装置，驱动装置，用于获取检测信号的接收装置，以及重构装置（152），用于重建 所述检测信号包括多个频率分量，其中通过使用从背景信号测量获得的频率分量特定信号质量因子来选择和/或加权一个或多个频率分量，并且其中， 仅使用选择和/或加权的频率分量来重建图像。