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    DETECTION OF SAFETY STATES DURING MEDICAL IMAGING PROCEDURES
    1.
    发明公开
    DETECTION OF SAFETY STATES DURING MEDICAL IMAGING PROCEDURES 审中-公开

    公开(公告)号：EP4318414A1

    公开(公告)日：2024-02-07

    申请号：EP22188258.2

    申请日：2022-08-02

    申请人： Koninklijke Philips N.V.

    发明人： KRUEGER, Sascha ,  KOKEN, Peter ,  SOMMER, Karsten ,  KNOESTER, Jaap

    IPC分类号： G06V40/10 ,  G06V10/82 ,  A61B5/00 ,  G06N3/045 ,  G16H30/40

    摘要： Disclosed herein is a medical system (100, 300). The execution of machine executable instructions (120) causes a computational system to (104): receive (200) an overview image (128), receive (202) object locators (130) in response to inputting the overview image into a first neural network (122), construct (204) an object sub image (132) using the object locator, receive (206) object positional data (134) in response to inputting the object sub image for each of the multiple predetermined objects into an object specific neural network (124), construct (208) multiple search images (136) using the object positional data for the multiple predetermined objects, receive (210) locator data (138) descriptive of a position of an item in response to inputting each of the multiple search images into an item specific neural network (126), detect (212) a safety state (140) by comparing the locator data and the object positional data of each of the predetermined objects with respect to a predetermined criterion; and provide (214) a warning signal (144) if the safety state is detected

    PATIENT PREPARATION FOR MEDICAL IMAGING
    3.
    发明公开
    PATIENT PREPARATION FOR MEDICAL IMAGING 审中-公开

    公开(公告)号：EP4059435A1

    公开(公告)日：2022-09-21

    申请号：EP21162638.7

    申请日：2021-03-15

    申请人： Koninklijke Philips N.V.

    发明人： SOMMER, Karsten ,  KRUEGER, Sascha ,  KOKEN, Peter ,  SENEGAS, Julien Thomas

    IPC分类号： A61B6/04 ,  A61B6/00 ,  G01R33/28 ,  G01R33/54

    摘要： A computer-implemented method for preparing a subject in medical imaging, comprising: obtaining a series of images of a region of interest comprising at least a part of the subject, wherein the series of images comprises at least a first image and at least a subsequent, second image (S10); determining a position of at least one landmark from the series of images, wherein the at least one landmark is anatomically related to a target anatomy (S20); determining a confidence level assigned to the position of the at least one landmark (S30); determining the position of the target anatomy based on the position of the at least one landmark, and the confidence level (S40); providing the position of the target anatomy for preparing the subject in medical imaging (S50).

    MAGNETIC RESONANCE IMAGING SYSTEM
    6.
    发明公开
    MAGNETIC RESONANCE IMAGING SYSTEM 审中-公开

    公开(公告)号：EP4382945A1

    公开(公告)日：2024-06-12

    申请号：EP22212192.3

    申请日：2022-12-08

    申请人： Koninklijke Philips N.V.

    发明人： RAHMER, Juergen Erwin ,  GLEICH, Bernhard ,  NIELSEN, Tim ,  KOKEN, Peter

    IPC分类号： G01R33/28 ,  G01R33/341 ,  G01R33/565 ,  G01R33/563 ,  G01R33/44 ,  G01R33/3415

    CPC分类号： G01R33/341 ,  G01R33/3415 ,  G01R33/56509 ,  G01R33/56308 ,  G01R33/286 ,  G01R33/443

    摘要： The invention relates to a magnetic resonance imaging (MRI) system 1 comprising a magnet unit 4 that carries out an MRI sequence for generating MRI signals of a patient 2, excites a resonator device 8, 38 attached to the patient or to an object not being the patient and comprising a resonator element having piezoelectric properties and a coil element connected to the resonator element, and receives resonator device signals from the resonator device. A processor 5 reconstructs an MR image of the patient based on the MRI signals and determines a property of the patient or the object, to which the resonator device is attached, based on the received resonator device signals. This allows determining the property of the patient or the object by the MRI system without necessarily requiring, besides the resonator device, additional hardware, i.e. the property can be determined without requiring sophisticated additional hardware.

    WEIGHT ESTIMATION OF A PATIENT
    7.
    发明公开
    WEIGHT ESTIMATION OF A PATIENT 审中-公开

    公开(公告)号：EP4184454A1

    公开(公告)日：2023-05-24

    申请号：EP21209245.6

    申请日：2021-11-19

    申请人： Koninklijke Philips N.V.

    发明人： SOMMER, Karsten ,  KRUEGER, Sascha ,  SENEGAS, Julien, Thomas ,  KOKEN, Peter

    IPC分类号： G06V40/10 ,  A61B5/107 ,  G01G19/44 ,  G06T7/00

    摘要： A computer-implemented method is provided for estimating a weight of a patient when supported on a patient table. Optical image data and depth image data are obtained and patient body keypoints are extracted from the optical image data. A first frame is selected which comprises an image of the patient table, by selecting a frame in which no body keypoints are present in the optical image data. A second frame is selected of the patient on the table, by selecting a frame with patient body keypoints and with little or no movement. A patient volume is obtained based on a difference between the depth image data for the first and second frame (or depth data at those times) and the patient weight is estimated from the determined patient volume.

    MAGNETIC RESONANCE FINGERPRINTING IN SLICES ALONG A ONE-DIMENSIONAL EXTENSION
    10.
    发明公开
    MAGNETIC RESONANCE FINGERPRINTING IN SLICES ALONG A ONE-DIMENSIONAL EXTENSION 审中-公开
    一维延伸片上的磁共振指纹图谱

    公开(公告)号：EP3224643A1

    公开(公告)日：2017-10-04

    申请号：EP15788008.9

    申请日：2015-10-30

    申请人： Koninklijke Philips N.V.

    发明人： AMTHOR, Thomas Erik ,  DONEVA, Mariya Ivanova ,  KOKEN, Peter ,  KEUPP, Jochen ,  BOERNERT, Peter

    IPC分类号： G01R33/483 ,  G01R33/50 ,  A61B5/055 ,  G01R33/30 ,  G01R33/48 ,  G01R33/54

    CPC分类号： A61B5/055 ,  A61B5/4872 ,  G01R33/307 ,  G01R33/4828 ,  G01R33/4835 ,  G01R33/50 ,  G01R33/54 ,  G01R33/563

    摘要： The invention provides for a magnetic resonance imaging system (100) which comprise a magnet (104) and a magnetic field gradient generator (110, 112) for generating a gradient magnetic field within an imaging zone (108). The gradient magnetic field is aligned with a predetermined direction. The magnetic resonance imaging system further comprise a memory (134, 136) for storing machine executable instructions (150, 152, 154), a pre-calculated magnetic resonance fingerprinting dictionary (144), and pulse sequence instructions (140). The pulse sequence instructions cause the magnetic resonance imaging system to acquire the magnetic resonance data according to a magnetic resonance fingerprinting technique. The magnetic resonance fingerprinting technique encodes the magnetic resonance data as slices (125). The pre-calculated magnetic resonance fingerprinting dictionary contains a listing of calculated magnetic resonance signals in response to execution of the pulse sequence instructions for a set of predetermined substances. Execution of the machine executable instructions causes a processor (130) controlling the magnetic resonance imaging system to: acquire (300) the magnetic resonance data by controlling the magnetic resonance imaging system with pulse sequence instructions; divide (302) the magnetic resonance data into a set of slices; calculate (304) the abundance of each of the set of predetermined substances within each of the set of slices by comparing the magnetic resonance data for each of the set of slices with the pre-calculated magnetic resonance fingerprinting dictionary; and calculate (306) a magnetic resonance fingerprint chart by plotting abundance of each of the set of predetermined substances within each of the set of slices as a function of position along the predetermined direction.

    摘要翻译： 本发明提供了一种磁共振成像系统（100），其包括磁体（104）和用于在成像区（108）内产生梯度磁场的磁场梯度发生器（110,112）。 梯度磁场与预定方向对齐。 磁共振成像系统还包括用于存储机器可执行指令（150,152,154），预先计算的磁共振指纹字典（144）和脉冲序列指令（140）的存储器（134,136）。 脉冲序列指令使磁共振成像系统根据磁共振指纹技术来采集磁共振数据。 磁共振指纹识别技术将磁共振数据编码为切片（125）。 预先计算的磁共振指纹字典包含响应于针对一组预定物质的脉冲序列指令的执行而计算出的磁共振信号的列表。 机器可执行指令的执行致使控制磁共振成像系统的处理器（130）：通过用脉冲序列指令控制磁共振成像系统来获取（300）磁共振数据; 将所述磁共振数据划分（302）为一组切片; 通过比较所述一组切片中的每一个的所述磁共振数据与所述预先计算的磁共振指纹字典，计算（304）所述一组切片中的每一个切片内的所述一组预定物质的丰度; 并且通过绘制作为沿着预定方向的位置的函数的一组切片中的每一个切片内的每组预定物质的丰度来计算（306）磁共振指纹图。