利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

21 条记录 (耗时 0.038 秒)

    Method and device for selecting body model positions for SAR monitoring of a magnetic resonance transmit array
    8.
    发明授权
    Method and device for selecting body model positions for SAR monitoring of a magnetic resonance transmit array 有权
    用于选择磁共振发射阵列的SAR监测的身体模型位置的方法和装置

    公开(公告)号：US08461838B2

    公开(公告)日：2013-06-11

    申请号：US12793866

    申请日：2010-06-04

    申请人： Gerhard Brinker ,  Dirk Diehl ,  Matthias Gebhardt ,  Juergen Nistler ,  Volker Schnetter

    发明人： Gerhard Brinker ,  Dirk Diehl ,  Matthias Gebhardt ,  Juergen Nistler ,  Volker Schnetter

    IPC分类号： G01V3/00

    CPC分类号： G01R33/288 ,  G01R33/5612

    摘要： In a method and a device for specific absorption rate monitoring in a magnetic resonance system wherein multiple transmit coils are independently charged with respective currents, a primary model point voxel and at least one auxiliary model point voxel are automatically selected from among multiple voxels that model a modeled examination subject. The primary model point voxel is that voxel in which an absolute maximum of a total field variable occurs that is produced by the respective electrical fields emitted by the transmit coils. The at least one auxiliary model point voxel is that voxel in which a relative maximum of the variable occurs. The primary model point voxel and the at least one auxiliary model point voxel are stored, and specific absorption rate monitoring of an actual examination subject in the magnetic resonance system is implemented during the acquisition of magnetic resonance data in respective voxels of the actual examination subject corresponding to the stored primary model point voxel and the stored at least one auxiliary model point voxel.

    摘要翻译： 在磁共振系统中用于特定吸收率监测的方法和装置中，其中多个发射线圈被各自的电流独立地充电，主要模型点体素和至少一个辅助模型点体素从模型化的多个体素中自动选择 建模考试科目。 主要模型点体素是其中发生由发射线圈发射的各个电场产生的总场变量的绝对最大值的体素。 至少一个辅助模型点体素是其中发生变量的相对最大值的体素。 存储主要模型点体素和至少一个辅助模型点体素，并且在实际检查对象的相应体素获取磁共振数据期间实现磁共振系统中实际检查对象的特定吸收率监测 到存储的主模型点体素和存储的至少一个辅助模型点体素。

    METHOD AND DEVICE FOR SELECTING BODY MODEL POSITIONS FOR SAR MONITORING OF A MAGNETIC RESONANCE TRANSMIT ARRAY
    9.
    发明申请
    METHOD AND DEVICE FOR SELECTING BODY MODEL POSITIONS FOR SAR MONITORING OF A MAGNETIC RESONANCE TRANSMIT ARRAY 有权
    用于选择用于磁共振发射阵列的SAR监测的身体模型位置的方法和装置

    公开(公告)号：US20100308825A1

    公开(公告)日：2010-12-09

    申请号：US12793866

    申请日：2010-06-04

    申请人： Gerhard Brinker ,  Dirk Diehl ,  Matthias Gebhardt ,  Juergen Nistler ,  Volker Schnetter

    发明人： Gerhard Brinker ,  Dirk Diehl ,  Matthias Gebhardt ,  Juergen Nistler ,  Volker Schnetter

    IPC分类号： G01R33/44

    CPC分类号： G01R33/288 ,  G01R33/5612

    摘要： In a method and a device for specific absorption rate monitoring in a magnetic resonance system wherein multiple transmit coils are independently charged with respective currents, a primary model point voxel and at least one auxiliary model point voxel are automatically selected from among multiple voxels that model a modeled examination subject. The primary model point voxel is that voxel in which an absolute maximum of a total field variable occurs that is produced by the respective electrical fields emitted by the transmit coils. The at least one auxiliary model point voxel is that voxel in which a relative maximum of the variable occurs. The primary model point voxel and the at least one auxiliary model point voxel are stored, and specific absorption rate monitoring of an actual examination subject in the magnetic resonance system is implemented during the acquisition of magnetic resonance data in respective voxels of the actual examination subject corresponding to the stored primary model point voxel and the stored at least one auxiliary model point voxel.

    摘要翻译： 在磁共振系统中用于特定吸收率监测的方法和装置中，其中多个发射线圈被各自的电流独立地充电，主要模型点体素和至少一个辅助模型点体素从模型化的多个体素中自动选择 建模考试科目。 主要模型点体素是其中发生由发射线圈发射的各个电场产生的总场变量的绝对最大值的体素。 至少一个辅助模型点体素是其中发生变量的相对最大值的体素。 存储主要模型点体素和至少一个辅助模型点体素，并且在实际检查对象的相应体素获取磁共振数据期间实现磁共振系统中实际检查对象的特定吸收率监测 到存储的主模型点体素和存储的至少一个辅助模型点体素。

    Evaluation of the positioning of an examination object
    10.
    发明授权
    Evaluation of the positioning of an examination object 有权

    公开(公告)号：US10321853B2

    公开(公告)日：2019-06-18

    申请号：US15409759

    申请日：2017-01-19

    申请人： Gerhard Brinker ,  Franz Hebrank ,  Patrick Sieber

    发明人： Gerhard Brinker ,  Franz Hebrank ,  Patrick Sieber

    IPC分类号： A61B5/055 ,  A61B5/107 ,  G01R33/28 ,  G16H40/63

    摘要： A method for evaluating positioning of an examination object on a patient-positioning apparatus in a magnetic resonance unit, a magnetic resonance unit, and a computer program product are provided. The method includes acquiring positioning data relating to the examination object using an acquisition unit. Using the acquired positioning data, positioning information relating to the examination object is determined using an analysis unit. Evaluation information is determined using the positioning information, using an evaluation unit. Using the evaluation information, an evaluation signal is transmitted using an output unit. Monitoring of a specific absorption rate may be adjusted using the evaluation signal.