公开(公告)号：US20190307367A1

公开(公告)日：2019-10-10

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 ,  A61B6/03 ,  G01R33/567

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：US20200256941A1

公开(公告)日：2020-08-13

申请号：US16755894

申请日：2018-09-27

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： CHRISTIAN STEHNING ,  JULIEN SENEGAS

IPC: G01R33/50 ,  G01R33/54 ,  G01R33/56

Abstract: The invention provides for a magnetic resonance imaging system (100, 400). Machine executable instructions (140) cause a processor (130) controlling the magnetic resonance imaging system to control (200) the magnetic resonance imaging system with pulse sequence commands to acquire a series of magnetic resonance data and noise magnetic resonance data. The pulse sequence commands are configured for controlling the magnetic resonance imaging system to acquire the series of magnetic resonance data (144) from a subject (118) according to a quantitative magnetic resonance imaging protocol for quantitatively determining a relaxation time. The quantitative magnetic resonance imaging protocol is configured for controlling the magnetic resonance imaging system to acquire the series of the magnetic resonance data using multiple pulse sequence repetitions (508). Each of the multiple pulse sequence repetitions comprises a magnetic gradient portion (502), a radio frequency portion (500), and an acquisition portion (504). The quantitative magnetic resonance imaging protocol comprises a pause cycle (510) between at least two of the multiple pulse sequence repetitions, wherein the pulse sequence commands are configured for acquiring noise magnetic resonance data (146) during the pause cycle using the magnetic gradient portion and the acquisition portion. The radio frequency portion is disabled during the acquisition of the noise magnetic resonance data. Execution of the machine executable instructions further cause the processor to reconstruct (202) a series of magnetic resonance images (148) weighted for the relaxation time using the series of magnetic resonance data and reconstruct (204) a noise magnetic resonance image (150) using the noise magnetic resonance data.

公开(公告)号：US20230005154A1

公开(公告)日：2023-01-05

申请号：US17780483

申请日：2020-12-01

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： ALBERT GARCIA I TORMO ,  RINK SPRINGER ,  IHOR OLEHOVYCH KIRENKO ,  JULIEN SENEGAS ,  HOLGER SCHMITT

IPC: G06T7/11 ,  G06T7/73 ,  G06T7/80 ,  A61B6/00

Abstract: The invention refers to an apparatus for monitoring a subject (121) during an imaging procedure, e.g. CT-imaging The apparatus (110) comprises a monitoring image providing unit (111) providing a first monitoring image and a second monitoring image acquired at different support positions, a monitoring position providing unit (112) providing a first monitoring position of a region of interest in the first monitoring image, a support position providing unit (113) providing support position data of the support positions, a position map providing unit (114) providing a position map mapping calibration support positions to calibration monitoring positions, and a region of interest position determination unit (115) determining a position of the region of interest in the second monitoring image based on the first monitoring position, the support position data, and the position map. This allows to determine the position of the region of interest accurately and with low computational effort.

公开(公告)号：US20180025466A1

公开(公告)日：2018-01-25

申请号：US15547083

申请日：2016-01-15

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： PETER MAZURKEWITZ ,  JULIEN SENEGAS ,  DANIEL BYSTROV

IPC: G06T3/00 ,  G01R33/565 ,  G06T11/00 ,  G06T7/30 ,  G06T7/73 ,  G06T7/00 ,  G01R33/54 ,  G06T15/08

CPC classification number: G06T3/0068 ,  G01R33/543 ,  G01R33/56509 ,  G06T7/0016 ,  G06T7/30 ,  G06T7/74 ,  G06T11/008 ,  G06T15/08 ,  G06T2207/10088 ,  G06T2211/40 ,  G06T2215/16

Abstract: The invention provides for a mri system (100) for acquiring magnetic resonance data (158, 168) from a subject. The execution of machine-executable instructions (180, 182, 184, 186, 188) causes a processor (144) to: receive (300) a baseline medical image (152) data descriptive of one or more internal structures (126) of the subject; receive (302) a baseline scan geometry (154); acquire (304) survey magnetic resonance data (158) from the subject by controlling the magnetic resonance imaging system with survey pulse sequence data, wherein the survey pulse sequence data comprises instructions for controlling the magnetic resonance imaging system to acquire magnetic resonance data descriptive of a three-dimensional volume (124) of the subject; reconstruct (306) the survey magnetic resonance data into a three-dimensional survey image (160); calculate (308) location data by processing the three dimensional survey image with an organ detection algorithm (182), wherein the location data is descriptive of a target region (128); assign (310) a predefined region of interest (130) to the three dimensional survey image using the location data; calculate (312) registration data (164) by registering the baseline medical image to the three dimensional survey image.

公开(公告)号：US20200237334A1

公开(公告)日：2020-07-30

申请号：US16756135

申请日：2018-10-12

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： PETER KOKEN ,  JULIEN SENEGAS ,  MARTIN BERGTHOLDT

IPC: A61B6/00 ,  H04N5/225 ,  H04N5/232 ,  H04N7/18 ,  G06T7/00 ,  G06T7/70 ,  G06T7/11 ,  G06T5/00 ,  A61B5/055 ,  A61B6/04 ,  A61B6/03 ,  A61N5/10 ,  A61B5/00 ,  A61B5/107

Abstract: The invention provides for a medical apparatus (100, 300, 400) comprising a subject support (102) configured for moving a subject (106) from a first position (124) to a second position (130) along a linear path (134). The subject support comprises a support surface (108) for receiving the subject. The subject support is further configured for positioning the subject support in at least one intermediate position (128). The subject support is configured for measuring a displacement (132) along the linear path between the first position and the at least one intermediate position. Each of the at least one intermediate position is located between the first position and the second position. The medical apparatus further comprises a camera (110) configured for imaging the support surface in the first position. Execution of machine executable instructions 116 cause the a processor (116) controlling the medical apparatus to: acquire (200) an initial image (142) with the camera when the subject support is in the first position; control (202) the subject support to move the subject support from the first position to the second position; acquire (204) at least one intermediate image (144) with the camera and the displacement for each of the at least one intermediate image as the subject support is moved from the first position to the second position; and calculate (206) a height profile (150, 600, 604) of the subject by comparing the initial image and the at least one intermediate image. The height profile is at least partially calculated using the displacement. The height profile is descriptive of the spatially dependent height of the subject above the support surface.

公开(公告)号：US20200046300A1

公开(公告)日：2020-02-13

申请号：US16492643

申请日：2018-03-16

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： JULIEN SENEGAS ,  SASCHA KRUEGER ,  DANIEL WIRTZ ,  CHRISTIAN STEHNING

IPC: A61B5/00 ,  A61B5/11 ,  A61B5/055 ,  A61B6/00 ,  A61B6/03 ,  A61B8/00 ,  A61B5/024 ,  G01R33/567 ,  G06T7/00 ,  G06T7/20

Abstract: The invention provides for a medical apparatus (100, 200, 300, 500) comprising an optical imaging system (106) configured for acquiring a series of optical images (544) descriptive of cardiac motion of a subject (102). The medical apparatus further comprises a memory (534) for storing machine executable instructions (540). The medical apparatus further comprises a processor (530) for controlling the medical apparatus. Execution of the machine executable instructions causes the processor to repeatedly: acquire (400) a series of images using the optical imaging system, wherein the series of images are acquired at a rate of at least 10 frames per second; and derive (402) a cardiac motion signal (546) from the series of images, wherein the cardiac motion signal is derived by tracking motion of at least a group of pixels within the series of images.

公开(公告)号：US20200029919A1

公开(公告)日：2020-01-30

申请号：US16500865

申请日：2018-12-24

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： JULIEN SENEGAS ,  MARTIN BERGTHOLDT

IPC: A61B6/08 ,  A61B6/00 ,  A61B6/06

Abstract: The appropriate positioning of a patient in an X-Ray imaging system can present difficulties for medical professional owing, on one hand to the small size of important anatomical aspects which need to be captured in X-Ray images, and on the other hand to the significant movements in a field of view presented by a typical patient. The present application proposes to obtain an image of the position of a patient in the field of view at approximately the same time that an initial X-Ray image is obtained. If it proves necessary to obtain a subsequent X-Ray image with updated field of view settings (for example, collimation parameters), the movement of the patient at the point of taking the second image is factored into the provision of updated field of view settings.

公开(公告)号：US20240148351A1

公开(公告)日：2024-05-09

申请号：US18279889

申请日：2022-02-25

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： MARTIN BERGTHOLDT ,  JULIEN SENEGAS ,  HRISHIKESH NARAYANRAO DESHPANDE ,  HOLGER SCHMITT ,  LENA FRERKING

IPC: A61B6/00 ,  G06T7/30 ,  G06T7/55

CPC classification number: A61B6/545 ,  A61B6/488 ,  G06T7/30 ,  G06T7/55 ,  G06T2207/10028 ,  G06T2207/30004

Abstract: The present invention relates to a system (10) and related method for planning a tomographic image acquisition of an object to be imaged by a tomographic imaging scanner (20). The system comprises an input (12) for receiving a 3D pre-scan image of the object and a camera system (14) for capturing 3D image information of the object. The system comprises a processor (16) for determining corresponding image features in the camera image and the pre-scan image. The processor determines an image transformation that relates the corresponding image features to each other, such that the object as represented by the pre-scan image can be transformed to the orientation, position and/or deformation of the object represented in the camera image. The processor plans the image acquisition, in which the pre-scan image is used to determine parameters including scan range. An output (18) outputs a signal representative of the determined plan.

公开(公告)号：US20200093443A1

公开(公告)日：2020-03-26

申请号：US16468734

申请日：2017-12-11

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： JULIEN SENEGAS ,  SASCHA KRUEGER

IPC: A61B5/00 ,  G01R33/567

Abstract: A magnetic resonance (MR) imaging device (10) repeatedly executes a navigator pulse sequence (40) to generate navigator data in image space as a function of time, and a motion signal (44) of an anatomical feature that moves with a physiological cycle (e.g. respiration) as a function of time is extracted from the navigator data. A concurrent physiological signal (16) as a function of time is generated by a physiological monitor (12, 14) concurrently with the repeated execution of the navigator pulse sequence. A gating time offset (50) is determined by comparing the motion signal of the anatomical feature as a function of time and the concurrent physiological signal as a function of time. The MR imaging device performs a prospective or retrospective gated MR imaging sequence (36) using gating times defined as occurrence times of gating events detected by the physiological monitor modified by the gating time offset.

公开(公告)号：US20180014745A1

公开(公告)日：2018-01-18

申请号：US15546310

申请日：2016-01-14

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： JULIEN SENEGAS ,  DANIEL WIRTZ ,  SASCHA KRUEGER ,  VINCENT JEANNE ,  THIRUKUMARAN THANGARAJ KANAGASABAPATHI ,  JOERG SABCZYNSKI ,  PETER FORTHMANN

IPC: A61B5/055 ,  G06T7/00 ,  A61B5/107 ,  G01R33/32 ,  A61B5/00 ,  A61B5/11 ,  G01R33/28 ,  G01R33/54

CPC classification number: A61B5/055 ,  A61B5/0037 ,  A61B5/0077 ,  A61B5/1079 ,  A61B5/1128 ,  A61B5/1135 ,  A61B6/527 ,  A61B6/547 ,  G01R33/283 ,  G01R33/32 ,  G01R33/546 ,  G06T7/0012 ,  G06T2207/10088

Abstract: A contact-free method of determining biometric parameters and physiological parameters of a subject of interest (20) to be examined by a medical imaging modality (10), comprising steps of taking (72) a picture by a first digital camera (52) including a total view of an examination table (44); applying (74) a computer vision algorithm or an image processing algorithm to the picture for determining a biometric parameter of the subject of interest (20) in relation to the examination table (44); taking (78) at least one picture with a second digital camera (58), whose field of view (60) includes a region of the subject of interest (20) that is related to the at least one determined biometric parameter; using data indicative of the determined biometric parameter to identify (82) a subset of pixels of the at least one picture taken by the second digital camera (58) that define a region of interest (64) from which at least one physiological parameter of the subject of interest (20) is to be determined, taking (84) a plurality of pictures of the region of the subject of interest (20) with the second digital camera (58), and applying (86) a computer vision algorithm or an image processing algorithm to pictures of the plurality of pictures taken by the second digital camera (58) for calculating the region of interest (64) in the pictures of the plurality of pictures for determining the physiological parameter of the subject of interest (20) during examination; a camera system (50) for determining, in a contact-free way, biometric parameters and physiological parameters of a subject of interest (20) to be examined by use of a medical imaging modality (10) and using such method; and—a medical imaging modality (10) configured for acquisition of scanning data of at least a portion of a subject of interest (20), the medical imaging modality (10) comprising such camera system.