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31 条记录 (耗时 0.024 秒)

    MR fingerprinting for determining performance degradation of the MR system
    1.
    发明授权
    MR fingerprinting for determining performance degradation of the MR system 有权

    公开(公告)号：US11344218B2

    公开(公告)日：2022-05-31

    申请号：US15546310

    申请日：2016-01-14

    申请人： KONINKLIJKE PHILIPS N.V.

    发明人： Julien Senegas ,  Daniel Wirtz ,  Sascha Krueger ,  Vincent Jeanne ,  Thirukumaran Thangaraj Kanagasabapathi ,  Joerg Sabczynski ,  Peter Forthmann

    IPC分类号： A61B5/055 ,  A61B5/00 ,  A61B5/107 ,  A61B5/11 ,  G01R33/28 ,  G01R33/32 ,  G01R33/54 ,  G06T7/00 ,  A61B6/00 ,  A61B5/113

    摘要： 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.

    Multi-element RF transmit coil for magnetic resonance imaging
    3.
    发明授权
    Multi-element RF transmit coil for magnetic resonance imaging 有权

    公开(公告)号：US10073154B2

    公开(公告)日：2018-09-11

    申请号：US14774175

    申请日：2014-03-13

    申请人： KONINKLIJKE PHILIPS N.V.

    发明人： Christoph Leussler ,  Daniel Wirtz

    IPC分类号： G01R33/34 ,  G01R33/28 ,  G01R33/3415 ,  G01R33/36 ,  G01R33/561

    CPC分类号： G01R33/3415 ,  G01R33/288 ,  G01R33/34053 ,  G01R33/34084 ,  G01R33/36 ,  G01R33/3692 ,  G01R33/5612

    摘要： The invention provides for a multi-element transmit coil (100) for a magnetic resonance imaging system (300). The multi-element transmit coil comprises multiple surface coil elements (102) with a coil circuit (104) that has an integrated a radio-frequency sensor (106, 604, 704, 804). The multi-element transmit coil further comprises a power monitoring unit (108) with an analog-to-digital converter (808). The power monitoring unit comprises a processor connected to each analog to digital converter that is operable for receiving a radio-frequency measurement for generating specific absorption rate data (348) for each of the multiple surface coil elements. The multi-element transmit coil further comprises an optical data transmission system (110) connected to the processor. The optical data transmission system is operable for connecting to a magnetic resonance imaging system controller (312, 330). The optical data transmission system is operable for transferring the specific absorption rate data to the magnetic resonance imaging system controller.

    MEASUREMENT OF MAGNETIC RESONANCE RHEOLOGY TRANSDUCER VIBRATIONS USING NAVIGATORS
    4.
    发明申请
    MEASUREMENT OF MAGNETIC RESONANCE RHEOLOGY TRANSDUCER VIBRATIONS USING NAVIGATORS 有权
    使用导航仪测量磁共振流变传感器振动

    公开(公告)号：US20150241540A1

    公开(公告)日：2015-08-27

    申请号：US14426842

    申请日：2013-09-09

    申请人： KONINKLIJKE PHILIPS N.V.

    发明人： Peter Vernickel ,  Daniel Wirtz ,  Christoph Leussler ,  Peter Mazurkewitz

    IPC分类号： G01R33/563 ,  G01R33/385 ,  G01R33/56 ,  G01R33/3815 ,  G01R33/30 ,  G01R33/567

    CPC分类号： G01R33/56375 ,  G01R33/307 ,  G01R33/3815 ,  G01R33/385 ,  G01R33/5608 ,  G01R33/56358 ,  G01R33/56509 ,  G01R33/56563 ,  G01R33/567 ,  G01R33/5676

    摘要： The invention provides for a medical instrument (200, 400, 500) comprising a magnetic resonance imaging system (202), a transducer (222) for mechanically vibrating at least a portion of the subject within the imaging zone. Instructions cause a processor (236) controlling the medical instrument to: control (100) the transducer to vibrate; control (102) the magnetic resonance imaging system to repeatedly acquire the magnetic resonance data (252) using a first spatially encoding pulse sequence (250); control (104) the magnetic resonance imaging system to acquire navigator data (256) using a second spatially encoding pulse sequence (254); construct (106) a set of navigator profiles (258, 804, 904, 1004, 1108, 1208, 1308) using the navigator data; determine (108) at least one parameter (260) descriptive of transducer vibrations using the set of navigator profiles; and reconstruct (110) at least one magnetic resonance rheology image (262) from the magnetic resonance data.

    摘要翻译： 本发明提供一种包括磁共振成像系统（202）的医疗器械（200,400,500），用于在成像区内机械地振动受试者的至少一部分的换能器（222）。 指令使处理器（236）控制医疗器械：控制（100）换能器振动; 控制（102）所述磁共振成像系统以使用第一空间编码脉冲序列（250）重复获取所述磁共振数据（252）。 控制（104）所述磁共振成像系统以使用第二空间编码脉冲序列（254）获取导航器数据（256）; 使用导航器数据构造（106）一组导航器简档（258,804,904,1004,1108,1208,1308）; 使用所述一组导航器轮廓来确定（108）描述换能器振动的至少一个参数（260）; 并从磁共振数据重建（110）至少一个磁共振流变学图像（262）。

    MEDICAL APPARATUS FOR DISPLAYING THE CATHETER PLACEMENT POSITION
    5.
    发明申请
    MEDICAL APPARATUS FOR DISPLAYING THE CATHETER PLACEMENT POSITION 审中-公开
    用于显示导管放置位置的医疗装置

    公开(公告)号：US20140303423A1

    公开(公告)日：2014-10-09

    申请号：US14349333

    申请日：2012-09-25

    申请人： KONINKLIJKE PHILIPS N.V.

    发明人： Thomas Erik Amthor ,  Falk Uhlemann ,  Sascha Krueger ,  Steffen Weiss ,  Ronaldus Frederik Johannes Holthuizen ,  Daniel Wirtz ,  Peter Kokenm

    IPC分类号： A61N5/10

    CPC分类号： A61N5/1007 ,  A61N5/1027 ,  A61N5/1039 ,  A61N5/1064 ,  A61N2005/1024 ,  A61N2005/1055

    摘要： The invention provides for a medical apparatus (200, 300, 400) comprising: a magnetic resonance imaging system (202), a display (270), a processor (228), and a memory (234) for storing instructions for the processor. The instructions causes the processor to receive a brachytherapy treatment plan (240), acquire (100) planning magnetic resonance data (244), calculate (102) a catheter placement positions (246, 900, 902) and a catheter control commands (248) the brachytherapy catheters. The instructions cause the processor, for each catheter placement position, to repeatedly: acquire (106) guidance magnetic resonance data (250), reconstruct (108) an image (252, 500), display (110) the image and the catheter placement position on the display, receive (114) a catheter inserted signal from a user interface, segment (116) the image to determine the catheter placement position after receiving the catheter inserted signal, recalculate (116) the catheter placement positions for each remaining catheter placement position after receiving the catheter inserted signal, and recalculate (116) the catheter control command for all of the multiple catheters after receiving the catheter inserted signal.

    摘要翻译： 本发明提供一种医疗设备（200,300,400），包括：磁共振成像系统（202），显示器（270），处理器（228）和用于存储用于处理器的指令的存储器（234）。 指令使得处理器接收近距离放射疗法治疗计划（240），获取（100）规划磁共振数据（244），计算（102）导管放置位置（246,900,902）和导管控制命令（248） 近距离放射治疗导管。 所述指令使得所述处理器对于每个导管放置位置重复地：获取（106）引导磁共振数据（250），重建（108）图像（252,500），显示（110）所述图像和所述导管放置位置 在显示器上接收（114）来自用户界面的导管插入信号，在接收导管插入信号之后段（116）图像以确定导管放置位置，重新计算（116）每个剩余导管放置位置的导管放置位置 在接收到导管插入信号之后，并且在接收到导管插入信号之后重新计算（116）所有多个导管的导管控制命令。

    Patient headphones with integrated sensor system
    6.
    发明授权
    Patient headphones with integrated sensor system 有权

    公开(公告)号：US10925539B2

    公开(公告)日：2021-02-23

    申请号：US15522331

    申请日：2015-11-13

    申请人： KONINKLIJKE PHILIPS N.V.

    发明人： Christoph Leussler ,  Daniel Wirtz ,  Sascha Krueger

    IPC分类号： A61B5/00 ,  A61B5/1455 ,  A61B5/024 ,  G01R33/28 ,  G01R33/567

    摘要： Patient headphones (50) for use in a medical scanning modality, comprising a frame member (52), two ear cups (54) that, in an operational state of the patient headphones (50), are arranged to be in contact with one of the patient's ears, and a sensor system (60), the sensor system (60) including optical emitters (64) that are configured for directing electromagnetic radiation to a portion of the patient's skin, and optical sensors (68) that are configured for receiving the electromagnetic radiation being returned from the portion of the patient's skin, and for providing an output signal that corresponds to the received electromagnetic radiation, wherein the output signal is indicative of at least one physiological parameter of the patient and serves as a basis for determining the at least one physiological parameter of the patient; —a patient headphones system (48) for use in a medical scanning modality (10), comprising an embodiment of such patient headphones (50) and a data acquisition and analysis unit (76) that is configured to acquire output signals of the optical sensors (68) and to analyze the acquired output signals by applying pre-determined criteria related to the output signals, and to provide a trigger output signal (80) if one of the pre-determined criteria is fulfilled; —a medical scanning modality (10) that is configured for contact-free acquisition of scanning data of at least a portion of a subject of interest (20), in particular a patient, comprising an embodiment of such patient headphones system (48), wherein the medical imaging modality (10) is in particular formed as a magnetic resonance imaging system.

    OSCILLATION APPLICATOR FOR MR RHEOLOGY
    8.
    发明申请
    OSCILLATION APPLICATOR FOR MR RHEOLOGY 审中-公开
    振荡器应用于MR流变学

    公开(公告)号：US20150148663A1

    公开(公告)日：2015-05-28

    申请号：US14406388

    申请日：2013-05-30

    申请人： KONINKLIJKE PHILIPS N.V.

    发明人： Peter Vernickel ,  Christoph Leussler ,  Daniel Wirtz ,  Peter Mazurkewitz

    IPC分类号： A61B5/00 ,  G01R33/50 ,  G01R33/56 ,  G01R33/3415

    CPC分类号： A61B5/6831 ,  A61B5/6843 ,  G01R33/3415 ,  G01R33/50 ,  G01R33/5608 ,  G01R33/56358

    摘要： The invention relates to the field of magnetic resonance (MR) imaging. It concerns an oscillation applicator for MR rheology. It is an object of the invention to provide an oscillation applicator without restrictions regarding the usability for certain body regions. According to the invention, the oscillation applicator comprises at least one transducer which generates a reciprocating motion at a given frequency and a belt (19) mechanically coupled to the transducer, which belt (19) is designed to be wrapped around a patient's body (10). Moreover, the invention relates to a MR device (1) and to a method of MR imaging.

    摘要翻译： 本发明涉及磁共振（MR）成像领域。 它涉及MR流变学的振荡施加器。 本发明的目的是提供一种振荡施加器，而不限制某些身体区域的可用性。 根据本发明，振动施加器包括产生给定频率的往复运动的至少一个换能器和机械耦合到换能器的皮带（19），所述皮带（19）被设计成围绕患者身体（10 ）。 此外，本发明涉及一种MR装置（1）和一种MR成像方法。

    Rheology system and MR rheology system with rheology sensor feedback control
    10.
    发明授权
    Rheology system and MR rheology system with rheology sensor feedback control 有权

    公开(公告)号：US10918304B2

    公开(公告)日：2021-02-16

    申请号：US15128121

    申请日：2015-03-26

    申请人： KONINKLIJKE PHILIPS N.V.

    发明人： Daniel Wirtz ,  Christoph Leussler ,  Peter Mazurkewitz

    IPC分类号： A61B5/055 ,  A61B5/00 ,  G01R33/563

    摘要： A rheology system (202) includes a rheology transducer device (204) for introducing mechanical waves into a subject of interest (120). The rheology transducer device (204) includes multiple transducers (212), a driving device (206) for driving the rheology transducer device (204), a sensor device (208) for sensing mechanical waves at the subject of interest (120), and a control device (210) for receiving input from the sensor device (208) and for controlling the driving device (206) based on the received input from the sensor device (208). An MR rheology system (200) includes the above rheology system (202) and an MR imaging system (110) adapted to control the rheology system (200). A rheology method includes with the rheology system (202), driving the rheology transducer device (204) to introduce mechanical waves into the subject of interest (120), sensing mechanical waves at the subject of interest (120), and performing feedback control.