-
公开(公告)号：US11972857B2
公开(公告)日：2024-04-30
申请号：US17049605
申请日：2019-04-18
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor： Sascha Krueger , Julien Senegas , Peter Koken
CPC classification number: G16H30/20 , G06T7/0014 , G06T7/75 , G16H30/40
Abstract: The invention provides for a medical instrument (100, 600) that comprises a medical imaging system (102, 102′), a subject support (110), and a camera system (104) configured for imaging the subject support in an initial position. The execution the machine executable instructions causes a processor (108) to: place (500) the subject support in the initial position (116); control (502) the camera system to acquire a series of repeated images (142); detect (506) the placement of one or more background objects (200); detect (508) one or more foreground objects (704); construct (510) a background object surface image (202) at least partially by stitching together the series of repeated images to replace image regions containing background objects obscured by the one or more foreground objects; determine (512) a three-dimensional object surface (208) using the background object surface image; detect (514) the subject in one of the series of repeated images (312); calculate (516) a subject segmentation (304) of the subject in the one of the series of repeated images; determine (518) a visible subject surface (308) using the subject segmentation and the one of the series of repeated images; and calculate (520) a three-dimensional subject model (310) by estimating a volume (314) defined by the three-dimensional object surface and the visible subject surface.
-
公开(公告)号：US11519982B2
公开(公告)日：2022-12-06
申请号：US17312967
申请日：2019-12-09
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor： George Randall Duensing , Sascha Krueger , Christian Findeklee , Oliver Lips
IPC: G01R33/3415 , G01R33/28 , G01R33/36
Abstract: A radio frequency (RF) system comprises an RF-array of antenna elements, a regulating arrangement to tune the antenna elements' impedances and a camera system to acquire image information of the RF-array. An analysis module is provided to derive operational settings such as resonant tuning settings, decoupling and impedance matchings of the antenna elements' impedances from the image information. The image information also represents the actual impedances and resonant properties of the RF-array. From the image information appropriate impedance settings can be derived that are the tuning parameters to render the RF-array resonant.
-
公开(公告)号：US11382535B2
公开(公告)日：2022-07-12
申请号：US16340707
申请日：2017-10-11
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor： Julien Senegas , Sascha Krueger , Daniel Wirtz , Vincent Jeanne , Thirukamaran Thangaraj Kanagasabapathi , Gerrit Maria Kersten
IPC: A61B5/113 , A61B5/00 , A61B5/08 , A61B6/00 , A61B5/11 , A61B5/055 , A61B6/03 , G01R33/567 , G01R33/565 , G01R33/28
Abstract: A respiratory monitoring device comprises: a light source (30) arranged to generate a projected shadow (S) of an imaging subject (P) positioned for imaging by an imaging device (8); a video camera (40) arranged to acquire video of the projected shadow; and an electronic processor (42) programmed to extract a position of an edge of the projected shadow as a function of time from the acquired video. In some embodiments, the light source is arranged to project the shadow onto a bore wall (20) of the imaging device, and the video camera is arranged to acquire video of the projected shadow on the bore wall. The electronic processor may be programmed to extract the position of the edge (E) as a one-dimensional function of time (46) based on the position of the edge in each frame of the acquired video and time stamps of the video frames.
-
公开(公告)号：US10247804B2
公开(公告)日：2019-04-02
申请号：US15117217
申请日：2015-02-03
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor： Tim Nielsen , Sascha Krueger
IPC: G01R33/567 , G01R33/561 , G01R33/483
Abstract: A method of operating a respiratory-guided magnetic resonance imaging system (10) with regard to triggering of magnetic resonance image acquisition, the magnetic resonance imaging system (10) being connectable to a respiration monitoring device (46) which is configured to provide an output signal (48) whose level represents a respiration state of the subject of interest (20), the method comprising a step (56) of generating an interleaved acquisition scheme for acquiring magnetic resonance images, a step (60) of adapting, in case of an occurrence of an irregularity in the breathing of the subject of interest (20) in the output signal (48) obtained by the respiration monitoring device (46) in the course of executing magnetic resonance image acquisition, at least one parameter of the interleaved acquisition scheme, wherein the at least one adapted parameter is at least one of a next respiration state of the subject of interest (20) to trigger on for acquiring at least one magnetic resonance image, a radio frequency pulse sequence-inherent idle time, and the chronological order of at least one slice of the plurality of slices to be imaged of at least the portion of the subject of interest (20), a step (62) of halting execution of magnetic resonance image acquisition, and a step (64) of resuming execution of magnetic resonance image acquisition pursuant to the interleaved acquisition scheme using the adapted parameter; a respiratory-guided magnetic resonance imaging system (10) having a control unit (26) that is configured to carry out steps (56-64) of an embodiment of the disclosed method; and a software module (44) for carrying out an embodiment of the disclosed method, wherein the method steps (56-64) to be conducted are converted into a program code that is implementable in a memory unit (30) and is executable by a processor unit (32) of the respiratory-guided magnetic resonance imaging system (10).
-
公开(公告)号：US10042013B2
公开(公告)日：2018-08-07
申请号：US14378116
申请日：2013-02-01
Applicant: KONINKLIJKE PHILIPS N.V.
Abstract: An active position marker system comprising at least one active position marker (10) and a remote transceiver unit (20) for communicating with the position marker is disclosed. Basically, the position marker (10) comprises a local RF receive coil (11) for receiving MR signals which are excited in a local volume, and a parametric amplifier (14) for amplifying and upconverting the frequency of the received MR signal into at least one microwave sideband frequency signal. This microwave signal is transmitted wirelessly or wire-bound to the transceiver unit for downconverting the same and supplying it to an image processing unit of an MR imaging apparatus.
-
Patent Agency Ranking
26.发明申请公开(公告)号：US20170219673A1
公开(公告)日：2017-08-03
申请号：US15501031
申请日：2015-08-11
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor： Tim Nielsen , Sascha Krueger
IPC: G01R33/567 , A61B5/113 , A61B5/00 , G01R33/565
CPC classification number: G01R33/5673 , A61B5/055 , A61B5/113 , A61B5/7207 , A61B5/7221 , A61B5/7292 , G01R33/56509
Abstract: A method of operating a magnetic resonance imaging system (10) being connectable to a respiration monitoring means (46) which is configured to provide an output signal (48) whose level represents a respiration state of the subject of interest (20), the method comprising: —a step (54) of providing a prospective acquisition scheme for acquiring magnetic resonance images at each respiration state of a set of selected respiration states of the subject of interest (20), the triggering on the selected respiration states being based on predetermined threshold output signal levels of the respiration monitoring means (46), and, during executing magnetic resonance image acquisition pursuant to the prospective acquisition scheme, a step (58) of comparing actual respiration states at which magnetic resonance images were actually acquired, with the selected respiration states according to the prospective acquisition scheme and predetermined ranges of tolerance (52) of the selected respiration states, —a step (60) of modifying the prospective acquisition scheme, if one of the actual respiration states lies outside the predetermined range of tolerance (52) of the selected respiration state, and a step (62) of proceeding execution of magnetic resonance imaging acquisition pursuant to the modified prospective acquisition scheme; and a magnetic resonance imaging system (10) comprising a control unit (26) that is configured to carry out steps of an embodiment of such a method.
-
公开(公告)号：US12268464B2
公开(公告)日：2025-04-08
申请号：US17775696
申请日：2020-11-03
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor： Sascha Krueger
Abstract: Disclosed herein is a medical instrument (100, 300). Execution of the machine executable instructions causes a processor (106) to: receive (206) a set of joint location coordinates (128) for a subject (118) reposing on a subject support (120), receive (207) a body orientation (132) in response to inputting the set of joint location coordinates into a predetermined logic module (130), calculate (208) a torso aspect ratio (134) from set of joint location coordinates. If (210) the torso aspect ratio is greater than a predetermined threshold (136) then (212) the body pose of the subject is a decubitus pose. Execution of the machine executable instructions further cause the processor to assign (220) the body pose as being a supine pose if the subject is face up on the subject support or assign (222) the body pose as being a prone pose if the subject is face down on the subject support if the torso aspect ratio is less than or equal to the predetermined threshold. Execution of the machine executable instructions further cause the processor to generate (216) a subject pose label (142).
-
公开(公告)号：US12257026B2
公开(公告)日：2025-03-25
申请号：US17602451
申请日：2020-04-09
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor： Sascha Krueger , Jan Hendrik Wuelbern , Peter Forthman
IPC: A61B5/00 , A61B5/055 , A61B5/11 , G01R33/383 , G01R33/385 , G02B6/06 , G02B23/26
Abstract: Disclosed is a medical imaging system (100, 400) component comprising: an optical image generator (122) configured for generating a two-dimensional image (200); an optical imaging system (126) configured for acquiring optical image data (166); and an optical waveguide bundle (124) comprising a subject end (132) and an equipment end (130). The subject end comprises at least one lens (136, 136). The optical image generator is configured for optically coupling to the equipment end to form an image projection pathway. The optical waveguide bundle is configured for projecting the two-dimensional image through the image projection pathway. The optical imaging system is configured for optically coupling to the equipment end to form an optical image data acquisition pathway. The optical imaging system is configured for acquiring the optical image data through the lens via the optical image data acquisition pathway.
-
公开(公告)号：US12251189B2
公开(公告)日：2025-03-18
申请号：US16972636
申请日：2019-06-04
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor： Sascha Krueger , Christian Stehning , Peter Mazurkewitz
IPC: A61B5/00 , A61B5/055 , A61N5/10 , G01R33/28 , G01R33/385 , G01R33/565
Abstract: The invention provides for a medical instrument (100, 300, 400, 500, 600) comprising a camera system (102, 102′, 102″) for imaging a portion (418) of a subject (108) reposing on a subject support (106). The medical instrument further comprises a display system (104) for rendering a position feedback indicator (130, 900). The display system is configured such that the position feedback indicator is visible to the subject when the subject is reposing on the subject support. The execution of the machine executable instructions (120) causes a processor (114) controlling the medical instrument to: acquire (200) a base position image (122) using the camera system; repeatedly (202) acquire a subsequent image (124) using the camera system; repeatedly (204) calculate an image transformation (126) from voxels of at least a portion of the base position image to voxels of the subsequent image by inputting the base position image and the subsequent image into an image transformation algorithm (128); and repeatedly (206) render a position feedback indicator (130, 900) on the display, wherein the position feedback indicator is controlled by the image transformation.
-
公开(公告)号：US12229984B2
公开(公告)日：2025-02-18
申请号：US17289926
申请日：2019-10-15
Applicant: KONINKLIJKE PHILIPS N.V.
Inventor： Sascha Krueger , Julien Senegas
Abstract: A positioning control system for a patient carrier comprises a camera system to acquire image information from a detection range. An analysis module configured to access the acquired image information from the detection range and compute operator-activity within the detection range from the acquired image information. The operator-activity representing a spatio-temporal pattern of activities of an operator in the detection range. From the operator activity compute a location of a target anatomy that is selected to be imaged. The location of the target anatomy that is to be imaged can be derived from the spatio-temporal activity pattern of the operator during the preparation of the patient to be examined.
-
-
-
-
-
-
-
-
-
Search Results
41
records
(took 0.111 seconds)
