公开(公告)号：WO2006120589A3

公开(公告)日：2007-03-01

申请号：PCT/IB2006051311

申请日：2006-04-27

Applicant: KONINKL PHILIPS ELECTRONICS NV ,  PHILIPS INTELLECTUAL PROPERTY ,  GRAESSLIN INGMAR ,  VERNICKEL PETER ,  LEUSSLER CHRISTOPH

Inventor： GRAESSLIN INGMAR ,  VERNICKEL PETER ,  LEUSSLER CHRISTOPH

IPC: H04B7/005

CPC classification number: G01R33/5612 ,  G01R33/288 ,  G01R33/3415 ,  G01R33/3607 ,  H04B17/23 ,  H04W52/34 ,  H04W52/367

Abstract: Methods and circuit arrangements for operating a multi-channel transmit / receive antenna device or arrangement, comprising a power monitoring unit, especially for use in a magnetic resonance imaging (MRI) system are disclosed. These methods and circuit arrangements are especially provided for ensuring that a specific absorption rate of a patient is not exceeded in the case in which antenna devices or arrangements are used which comprise a plurality of coils and / or coil segments which are independently supplied with RF transmit signals with different amplitudes and / or phases and / or waveforms and / or power levels. A maximum power level is set for at least one of the transmit channels. An alarm state is activated if the supplied power level or the reflected power for that channel exceeds the maximum power level . A maximum sum power level is set for a plurality of transmit channels. An alarm state is activated if the supplied sum power level or the reflected sum power level for the plurality of transmit channels exceeds the maximum sum powr level.

Abstract translation: 公开了用于操作多通道发射/接收天线装置或装置的方法和电路装置，其包括特别用于磁共振成像（MRI）系统的功率监测单元。 特别提供了这些方法和电路装置，用于确保在使用天线装置或布置的情况下不超过患者的比吸收率，所述天线装置或布置包括多个线圈和/或线圈段，这些线圈和/或线圈段独立地提供有RF发射 具有不同幅度和/或相位和/或波形和/或功率电平的信号。 为至少一个发送信道设置最大功率电平。 如果提供的功率电平或该通道的反射功率超过最大功率电平，则激活报警状态。 为多个发送信道设置最大和功率电平。 如果提供的总功率电平或多个发射信道的反射和功率电平超过最大和功率电平，则激活报警状态。

公开(公告)号：WO2013054231A3

公开(公告)日：2013-06-13

申请号：PCT/IB2012055294

申请日：2012-10-03

Applicant: KONINKL PHILIPS ELECTRONICS NV ,  PHILIPS INTELLECTUAL PROPERTY

Inventor： VAN DEN BRINK JOHAN SAMUEL ,  HARVEY PAUL ROYSTON ,  FORTHMANN PETER ,  LEUSSLER CHRISTOPH ,  VERNICKEL PETER ,  WUELBERN JAN HENDRIK ,  GRAESSLIN INGMAR

IPC: G01R33/28 ,  A61B5/055 ,  G01R33/48

CPC classification number: G01R33/31 ,  A61B5/055 ,  A61B2090/3954 ,  A61F7/10 ,  A61F2007/0056 ,  A61F2007/0086 ,  G01R33/28 ,  G01R33/288 ,  G01R33/44 ,  G01R33/4804

Abstract: The invention provides an apparatus(1) for magnetic resonance (MR) examination of a subject (S), comprising: an examination region (3) for accommodating the subject (S) during the MR examination; a radio-frequency system (5) for transmission of a radio-frequency (RF) signal or field into the examination region (3) during the MR examination; and a temperature control system (6) for controlling the temperature of the subject (S) in the examination region (3) during the examination. The temperature control system(6) is configured to actively control or regulate an environment of the subject (S), and thereby the temperature or thermal comformt of the subject (S) based upon a detected and/or an expected temperature of the subject (S) during the MR examination. The invention also provides a method of controlling thermal comfort of the subject (S) during an examination of the subject (S) in a MR apparatus(1), comprising the steps of: estimating and/or detecting a temperature of the subject (S) during the MR examination, and actively controlling or regulating the environment of the subject (S) based upon the estimated and/or detected temperature of the subject (S) during the MR examination.

Abstract translation: 本发明提供了一种用于对象（S）的磁共振（MR）检查的设备（1），包括：在MR检查期间容纳对象（S）的检查区域（3） 射频系统（5），用于在MR检查期间将射频（RF）信号或场传送到检查区域（3）中; 以及用于在检查期间控制检查区域（3）中的对象（S）的温度的温度控制系统（6）。 温度控制系统（6）被配置为基于对象（S）的检测到的和/或预期的温度来主动地控制或调节对象（S）的环境，从而主动地控制对象（S）的温度或热共同 S）在MR检查期间。 本发明还提供了一种在检查MR设备（1）中的对象（S）期间控制对象（S）的热舒适度的方法，包括以下步骤：估计和/或检测对象（S ），并且在MR检查期间基于对象（S）的估计和/或检测温度主动控制或调节对象（S）的环境。

公开(公告)号：WO2006117714A3

公开(公告)日：2007-06-21

申请号：PCT/IB2006051265

申请日：2006-04-24

Applicant: KONINKL PHILIPS ELECTRONICS NV ,  PHILIPS INTELLECTUAL PROPERTY ,  GRAESSLIN INGMAR ,  VERNICKEL PETER ,  LEUSSLER CHRISTOPH

Inventor： GRAESSLIN INGMAR ,  VERNICKEL PETER ,  LEUSSLER CHRISTOPH

IPC: G01R33/36

CPC classification number: G01R33/3607 ,  G01R33/288 ,  G01R33/5612 ,  G01R33/5659

Abstract: Methods and circuit arrangements for operating a multi-channel transmit / receive antenna device or arrangement, especially for use in a magnetic resonance imaging (MRI) system, are disclosed by which RF amplifiers can be used to their full peak power capability without running the risk that the RF amplifier is damaged due to excessive reflected power at its output. Furthermore by evaluating certain forward and reflected power signals patient safety is achieved with respect to monitoring the limits of the specific absorption rate.

Abstract translation: 公开了用于操作多通道发射/接收天线装置或装置的方法和电路装置，特别是用于磁共振成像（MRI）系统中的哪些RF放大器可以被用于其全峰功率能力而不运行风险 RF放大器由于其输出处的反射功率过大而损坏。 此外，通过评估某些正向和反射功率信号，在监测比吸收率的限制方面实现了患者的安全性。

公开(公告)号：WO2006137026A3

公开(公告)日：2007-03-29

申请号：PCT/IB2006052003

申请日：2006-06-21

Applicant: KONINKL PHILIPS ELECTRONICS NV ,  PHILIPS INTELLECTUAL PROPERTY ,  HARVEY PAUL R ,  GRAESSLIN INGMAR ,  LEUSSLER CHRISTOPH

Inventor： HARVEY PAUL R ,  GRAESSLIN INGMAR ,  LEUSSLER CHRISTOPH

IPC: G01R33/36 ,  G01R33/3415

CPC classification number: G01R33/3415 ,  G01R33/3635

Abstract: The invention relates to an MR device (1) for magnetic resonance imaging of a body (14) placed in an examination volume (7), the device (1) comprising a main magnet (2) for generating a stationary and substantially homogeneous main magnetic field in the examination volume (7), and an RF coil arrangement for generating RF fields in the examination volume (7) and/or for receiving MR signals from the body (14). In order to provide such an MR device, which is arranged to operate at the resonance (Larmor) frequencies of two or more different nuclear species at the same time, the invention suggests that the RF coil arrangement comprises a plurality of independent resonator elements (8, 9, 10, 11, 12, 13) which are adjacently arranged in or near the examination volume (7), wherein adjacent resonator elements (8, 9, 10, 11, 12, 13) are alternately tuned to one of two or more different MR resonance frequencies, and wherein each resonator element (8, 9, 10, 11, 12, 13) is associated with a separate signal transmission (16) and/or signal reception channel (17) of the MR device (1)

Abstract translation: 本发明涉及用于放置在检查体积（7）中的体（14）的磁共振成像的MR装置（1），所述装置（1）包括主磁体（2），用于产生静止且基本均匀的主磁 在检查体积（7）中的场和用于在检查体积（7）中产生RF场和/或用于从身体（14）接收MR信号的RF线圈装置。 为了提供这样的MR器件，其被布置为在同时在两个或更多个不同核物种的共振（Larmor）频率下操作，本发明提出RF线圈装置包括多个独立的谐振元件（8 ，9,10,11,12,13），其相邻地布置在检查体积（7）中或附近，其中相邻的谐振器元件（8,9,10,11,12,13）交替地被调谐到两个或 更多不同的MR共振频率，并且其中每个谐振器元件（8,9,10,11,12,13）与MR装置（1）的单独的信号传输（16）和/或信号接收通道（17）相关联，

公开(公告)号：WO03096274A2

公开(公告)日：2003-11-20

申请号：PCT/IB0301665

申请日：2003-04-29

Applicant: PHILIPS INTELLECTUAL PROPERTY ,  KONINKL PHILIPS ELECTRONICS NV ,  GRAESSLIN INGMAR ,  SCHAEFFTER TOBIAS

Inventor： GRAESSLIN INGMAR ,  SCHAEFFTER TOBIAS

IPC: A61B6/03 ,  A61B5/055 ,  G06T1/00 ,  G06T5/00 ,  G06T5/50

CPC classification number: G06T5/50 ,  G06T5/003 ,  G06T2207/10081 ,  G06T2207/10088 ,  G06T2207/20201 ,  G06T2207/30101

Abstract: The invention relates to a method for the processing of a series of raw images (1), notably for coronary MR or CT angiography. A reference image (3) is selected from the series of raw images (1) is found by matching a selected image region of interest within the reference image (3) with individual raw images from the series of raw images (1). The reference image (3) and the image (4) which is similar to the reference image are then processed so as to form an image of improved image quality (8). In order to obtain images which are as faithful and sharp as possible, the invention proposes to form the image of improved image quality (8) by weighted averaging of the intensity values of corresponding pixels within the reference image (3) and the image (4) which is similar to the reference image.

Abstract translation: 本发明涉及用于处理一系列原始图像（1）的方法，特别是用于冠状动脉MR或CT血管造影术。 通过将参考图像（3）内的所选择的感兴趣图像区域与来自原始图像序列（1）的各个原始图像进行匹配，从一系列原始图像（1）中选择参考图像（3）。 然后处理与参考图像相似的参考图像（3）和图像（4），以形成改善的图像质量的图像（8）。 为了获得尽可能忠实和清晰的图像，本发明提出通过对参考图像（3）和图像（4）内的相应像素的强度值进行加权平均来形成改进图像质量的图像（8） ），它与参考图像相似。

公开(公告)号：WO2005124380A2

公开(公告)日：2005-12-29

申请号：PCT/IB2005051806

申请日：2005-06-02

Applicant: KONINKL PHILIPS ELECTRONICS NV ,  LEUSSLER CHRISTOPH G ,  GRAESSLIN INGMAR ,  BUURMAN HANS ,  CARLON JOHN T

Inventor： LEUSSLER CHRISTOPH G ,  GRAESSLIN INGMAR ,  BUURMAN HANS ,  CARLON JOHN T

IPC: G01R33/34 ,  G01R33/3415

CPC classification number: G01R33/3415 ,  G01R33/34007 ,  G01R33/34084

Abstract: A radio frequency apparatus for at least one of (i) receiving and (ii) exciting a magnetic resonance signal includes an item of clothing (102, 202). The item of clothing includes one or more layers (110, 112, 120, 122, 300, 402) that are stretchable to comport with differently sized and shaped imaging subjects. A plurality of radio frequency coils (104, 114, 204, 206, 208, 302, 404) are attached to one or more layers of the item of clothing. The coils are relatively movable with respect to one another responsive to stretching of the stretchable item of clothing. The one or more layers of the item of clothing include an anti-microbial agent (92, 92', 94') disposed on or incorporated into at least one layer.

Abstract translation: 用于（i）接收和（ii）激励磁共振信号中的至少一个的射频装置包括服装物品（102,202）。 衣物包括一个或多个可伸缩的层（110,112,120,122,300,402），以与不同大小和形状的成像对象相匹配。 多个射频线圈（104,114,204,206,208,302,404）附接到该衣物项的一层或多层。 线圈可以相对于彼此相对移动，以响应于可拉伸物品的拉伸。 服装项目的一层或多层包括设置在或并入至少一层中的抗微生物剂（92,92'，94'）。