Method for multi-mode, multi-load, and multi-domain optimization of a multi-channel near-field RF transmitter

    公开(公告)号:US09841477B2

    公开(公告)日:2017-12-12

    申请号:US14384974

    申请日:2012-03-14

    摘要: The invention relates to a method for optimization of a performance of a multi-channel transmitter including several transmit elements, particularly in a magnetic resonance imaging device. The method includes: (a) Exciting the transmit elements of the multi-channel transmitter by electric excitation signals comprising a specific power, with the power of the excitation signals partially reflected by the transmit elements of the multichannel transmitter, (b) Determining a reflected power which is reflected by the multi-channel transmitter during excitation of the transmit elements, (c) Determining reflection coefficients Sxx of the multi-channel transmitter, (d) Determining reflection coefficients Sxy of the multi-channel transmitter, (e) Calculating a performance criterion representing the performance of the multi-channel transmitter, with the performance criterion based on the reflected power, the reflection coefficients Sxx and the reflection coefficients Sxy, and (f) Tuning the multi-channel transmitter so that the performance criterion is optimized.

    Camera-supported movement detection for movement compensation in real time in magnetic resonance imaging
    2.
    发明申请
    Camera-supported movement detection for movement compensation in real time in magnetic resonance imaging 有权
    摄像机支持的运动检测用于磁共振成像中的实时移动补偿

    公开(公告)号:US20120320178A1

    公开(公告)日:2012-12-20

    申请号:US13519883

    申请日:2010-12-16

    IPC分类号: H04N7/18

    CPC分类号: G01R33/56509 G01R33/5673

    摘要: The invention relates to a method for compensating patient movements in MRI scans in real time and to a device suitable for carrying out said method. The method involves the following steps: optically sensing a marking element (5) connected to a patient (3) by means of an image sensor module (7) of an MRI-compatible camera (2) which is positioned inside an MRI device; transferring the image data detected by the image sensor module (7) to a micro-controller module (11) which is integrated in the MRI-compatible camera (2); calculating position data of the marking element (5) in the micro-controller module (11); and transmitting the position data to an external analyzing unit or to the MRI device in real time.

    摘要翻译: 本发明涉及用于实时地补偿MRI扫描中的患者移动的方法以及适于执行所述方法的装置。 该方法包括以下步骤:通过位于MRI装置内部的MRI兼容相机(2)的图像传感器模块(7)来光学地感测连接到患者(3)的标记元件(5) 将由图像传感器模块(7)检测的图像数据传送到集成在MRI兼容相机(2)中的微控制器模块(11); 计算微控制器模块(11)中的标记元件(5)的位置数据; 并且将位置数据实时地发送到外部分析单元或MRI装置。

    Server side filtering and sorting with field level security

    公开(公告)号:US20070073695A1

    公开(公告)日:2007-03-29

    申请号:US11235784

    申请日:2005-09-27

    IPC分类号: G06F17/30

    摘要: A project management system is enabled to implement filtering, sorting, and field level security for data associated with managed projects. A filter for field selection is prepared by a project client application and forwarded to a project server. The server generates an access attribute table based the user permissions that may be set for each field within the managed projects. Upon retrieving the selected fields from project database, the project server builds a secured list of fields. A data set to be provided to the project client is prepared by removing the fields for which the user lacks the requisite access permission prior to sorting the data. The removed data may be used for user-transparent computations within the project server, but guarded from client applications.

    Patient gown
    7.
    发明申请
    Patient gown 审中-公开
    病人礼服

    公开(公告)号:US20060277654A1

    公开(公告)日:2006-12-14

    申请号:US11148398

    申请日:2005-06-09

    申请人: Robert Turner

    发明人: Robert Turner

    IPC分类号: A41D10/00

    CPC分类号: A41D13/1236 A41D13/129

    摘要: A poncho-like patient gown is described. This gown comprises an essentially rectangular fabric sheet having a center aperture. The aperture is adapted to fit over the head of the patient, causing the front and back panels of the sheet to drape downward from the patient's shoulders and cover the torso of the patient. Closure means, such as a sash, gather the panels about the torso to preserve patient modesty.

    摘要翻译: 描述了一种披风式的长袍。 这种长袍包括具有中心孔的基本上矩形的织物片。 该孔适于装在患者的头部上,导致片材的前面板和后面板从病人的肩膀向下悬垂并覆盖患者的躯干。 关闭手段,例如窗框,收集关于躯干的面板,以保护患者的谦虚。