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69 条记录 (耗时 0.031 秒)

    Apparatus for measuring weak, location-dependent and time-dependent magnetic field
    1.
    发明授权
    Apparatus for measuring weak, location-dependent and time-dependent magnetic field 失效
    用于测量弱的，位置相关的和时间依赖的磁场的装置

    公开(公告)号：US5265611A

    公开(公告)日：1993-11-30

    申请号：US909316

    申请日：1992-07-06

    申请人： Eckhardt Hoenig ,  Helmut Reichenberger ,  Siegfried Schneider

    发明人： Eckhardt Hoenig ,  Helmut Reichenberger ,  Siegfried Schneider

    IPC分类号： A61B5/04 ,  G01R33/00 ,  G01R33/035 ,  A61B5/05

    CPC分类号： G01R33/00 ,  A61B5/04005 ,  G01R33/0354 ,  A61B5/0046

    摘要： An apparatus for measuring weak, location-dependent and time-dependent magnetic fields emitted from a source situated in an examination subject includes a sensor arrangement having at least ten gradiometers of the first order, each gradiometer being inductively coupled to a DC-SQUID. The sensor arrangement and the examination subject are disposed in a room which shields the examination subject and the sensor arrangement from magnetic fields. The room has a shielding factor of at least 10 for magnetic alternating fields having a frequency of 0.5 Hz, the shielding factor increasing with increasing frequency. A method for operating the apparatus is also disclosed.

    摘要翻译： 用于测量从位于检查对象中的源发出的弱的，取决于位置的和与时间相关的磁场的装置包括具有至少十个第一级的梯度计的传感器装置，每个梯度计感应耦合到DC-SQUID。 传感器装置和检查对象被设置在屏蔽检查对象和传感器装置免受磁场影响的房间中。 对于频率为0.5Hz的磁场交变场，该房间屏蔽系数至少为10，屏蔽因数随着频率的增加而增加。 还公开了一种操作该装置的方法。

    Apparatus and method for measuring weak, location-dependent and time-dependent magnetic fields
    2.
    发明授权
    Apparatus and method for measuring weak, location-dependent and time-dependent magnetic fields 失效
    用于测量弱点，位置依赖性和时间依赖磁场的装置和方法

    公开(公告)号：US5152288A

    公开(公告)日：1992-10-06

    申请号：US774635

    申请日：1991-10-09

    申请人： Eckhardt Hoenig ,  Helmut Reichenberger ,  Siegfried Schneider

    发明人： Eckhardt Hoenig ,  Helmut Reichenberger ,  Siegfried Schneider

    IPC分类号： A61B5/04 ,  A61B5/05 ,  G01R33/00 ,  G01R33/035

    CPC分类号： G01R33/00 ,  A61B5/04005 ,  G01R33/0354 ,  A61B5/0046

    摘要： An apparatus for measuring weak, location-dependent and time-dependent magnetic fields emitted from a source situated in an examination subject includes a sensor arrangement having at least ten gradiometers of the first order, each gradiometer being inductively coupled to a DC-SQUID. The sensor arrangement and the examination subject are disposed in a room which shields the examination subject and the sensor arrangement from magnetic fields. The room has a shielding factor of at least 10 for magnetic alternating fields having a frequency of 0.5 Hz, the shielding factor increasing with increasing frequency. A method for operating the apparatus is also disclosed.

    摘要翻译： 用于测量从位于检查对象中的源发出的弱的，取决于位置的和与时间相关的磁场的装置包括具有至少十个第一级的梯度计的传感器装置，每个梯度计感应耦合到DC-SQUID。 传感器装置和检查对象被设置在屏蔽检查对象和传感器装置免受磁场影响的房间中。 对于频率为0.5Hz的磁场交变场，该房间屏蔽系数至少为10，屏蔽因数随着频率的增加而增加。 还公开了一种操作该装置的方法。

    Magnetic resonance equipment for the production of images of a test object
    3.
    发明授权
    Magnetic resonance equipment for the production of images of a test object 失效
    用于生产测试对象图像的磁共振设备

    公开(公告)号：US4682108A

    公开(公告)日：1987-07-21

    申请号：US759535

    申请日：1985-07-26

    申请人： Eckart Stetter ,  Helmut Reichenberger ,  Siegfried Schneider ,  Axel Wirth

    发明人： Eckart Stetter ,  Helmut Reichenberger ,  Siegfried Schneider ,  Axel Wirth

    IPC分类号： G01R33/567 ,  G01R33/20

    CPC分类号： G01R33/5673

    摘要： The disclosure relates to nuclear spin tomography equipment in which means (22, 24) are provided for the control of the acquisition of the Fourier rows of the measurement matrix as a function of a respiration signal. The equipment includes a Fourier row counter (25) which influences a circuit (26) that controls the measurement signal acquisition. In a first embodiment of the invention the measurement signal acquisition is always released for all rows outside a predetermined region, but is a function of the respiration phase signal inside this region. The predetermined row region may comprise approximately 10% of all rows to be measured and should lie symmetrically about the center of the matrix. A further reduction of the measuring time is realized, according to another embodiment of the invention, by dispensing altogether with measurement in the row edge region of the matrix.

    摘要翻译： 本公开涉及核自旋断层摄影设备，其中提供了用于控制作为呼吸信号的函数的测量矩阵的傅里叶行的获取的装置（22,24）。 该设备包括影响控制测量信号获取的电路（26）的傅里叶行列计数器（25）。 在本发明的第一实施例中，对于预定区域外的所有行总是释放测量信号，但是该区域内的呼吸相位信号的函数。 预定行区域可以包括待测量的所有行的大约10％，并且应该围绕矩阵的中心对称地布置。 根据本发明的另一个实施例，通过在矩阵的行边缘区域中完全分配测量，实现了测量时间的进一步减少。

    Method for providing a magnetic resonance image from respiration-gated image data
    4.
    发明授权
    Method for providing a magnetic resonance image from respiration-gated image data 失效
    用于从呼吸门控图像数据提供磁共振图像的方法

    公开(公告)号：US4727882A

    公开(公告)日：1988-03-01

    申请号：US853310

    申请日：1986-04-17

    申请人： Siegfried Schneider ,  Axel Wirth ,  Wilfried Schajor ,  Helmut Reichenberger

    发明人： Siegfried Schneider ,  Axel Wirth ,  Wilfried Schajor ,  Helmut Reichenberger

    IPC分类号： A61B10/00 ,  A61B5/055 ,  G01R33/48 ,  G01R33/56 ,  G01R33/567 ,  A61B5/05

    CPC分类号： G01R33/5673 ,  G01R33/56

    摘要： A method and a device for the composition of an MR image with respiration-controlled recording of the spin echoes. The phase coding gradient of an MR equipment is stepped as a function of a motion phase of the respiratory motion once per respiration cycle. With a constant phase coding gradient several scans, possibly EKG-triggered, are then recorded within the respiration cycle. The spin echo signals recorded for each scan are stored in a first memory. In a second memory, the amplitude of the respiratory motion at the respective scan moment is stored. Then a comparison of all stored amplitude of the respiratory motion with a reference value R is made. For the composition of the MR image only that scan per respiration cycle is used for which the respective amplitude of the respiratory motion fulfills a given criterion with respect to the reference value R.

    摘要翻译： 用于组合具有呼吸控制的自旋回波记录的MR图像的方法和装置。 MR设备的相位编码梯度作为每呼吸循环一次呼吸运动的运动相位的函数。 在恒定的相位编码梯度下，可以在呼吸周期内记录几次扫描（可能是EKG触发的）。 每次扫描记录的自旋回波信号都存储在第一个存储器中。 在第二存储器中，存储在相应扫描时刻的呼吸运动的幅度。 然后，将呼吸运动的所有存储的振幅与参考值R进行比较。 对于MR图像的组成，仅使用每个呼吸循环的扫描，呼吸运动的相应振幅相对于参考值R满足给定的标准。

    Method and information system for performing a clinical study on a patient
    10.
    发明申请
    Method and information system for performing a clinical study on a patient 审中-公开
    用于对患者进行临床研究的方法和信息系统

    公开(公告)号：US20070143146A1

    公开(公告)日：2007-06-21

    申请号：US10589560

    申请日：2005-02-09

    申请人： Klaus Abraham-Fuchs ,  Eva Rumpel ,  Markus Schmidt ,  Siegfried Schneider ,  Horst Schreiner ,  Gudrun Zahlmann

    发明人： Klaus Abraham-Fuchs ,  Eva Rumpel ,  Markus Schmidt ,  Siegfried Schneider ,  Horst Schreiner ,  Gudrun Zahlmann

    IPC分类号： G06Q50/00

    CPC分类号： G06Q50/24 ,  G16H10/20 ,  G16H10/60 ,  G16H80/00

    摘要： A method is disclosed for performing a clinical study on a patient. The study-related or patient-related data is stored in a memory during the study. The memory is readable by a physician who is foreign to the study and is associated with the patient. An information system for a clinical study on a patient encompasses a memory for study-related or patient-related data, which is allocated to the patient, a data input device for storing data in the memory, and a data reading device for reading out the data from the memory. The data reading device is accessible to a physician who is foreign to the study and is associated with the patient.

    摘要翻译： 公开了一种用于对患者进行临床研究的方法。 研究相关或与患者有关的数据在研究期间存储在记忆体中。 该记忆可由外科医生与患者相关联的医师读取。 用于患者的临床研究的信息系统包括分配给患者的学习相关或患者相关数据的存储器，用于将数据存储在存储器中的数据输入装置，以及用于读出 来自内存的数据 数据读取装置对于研究外部并与患者相关联的医师可访问。