专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US07839147B2 Shimming of electric field for electric properties tomography 有权
标题翻译：电子层析成像的电场匀场
公开(公告)号：US07839147B2
公开(公告)日：2010-11-23
申请号：US12297662
申请日：2007-11-08
申请人： Ulrich Katscher , Peter Vernickel , Marius Hanft
发明人： Ulrich Katscher , Peter Vernickel , Marius Hanft
IPC分类号： G01V3/00
CPC分类号： G01R33/48 , A61B5/0536 , G01R33/4808
摘要： A radio frequency coil system (34) used in the context of electric properties tomography (EPT, electrical impedance tomography, EIT, applied potential tomography, APT) generates radio frequency excitation pulses in an examination region (14). The radio frequency coil system (34) includes N coil elements (38) which generate magnetic (H) and electric (E) fields. A weight setting device (54) sets weight factors for input signals for the coil elements (38). A transmitting system (52) creates RF pulses, at least two sets of each with differently weighted input signals, and transmits the at least two sets of RF pulses to the coil elements (38) such that each of the transmitted RF pulse sets generates shifted electric fields (110, 112) having a shifted zero crossing point (120, 122) from each other. An image processor (62) computes electric permittivity maps from resonance induced by the at least two sets of RF pulses with different weighting.
摘要翻译：在电性能断层摄影（EPT，电阻断层扫描，EIT，应用电位层析成像，APT）的上下文中使用的射频线圈系统（34）在检查区域（14）中产生射频激励脉冲。射频线圈系统（34）包括产生磁（H）和电（E）场的N个线圈元件（38）。权重设定装置（54）为线圈元件（38）的输入信号设定权重因子。发射系统（52）产生RF脉冲，每个具有不同加权的输入信号的至少两组，并且将至少两组RF脉冲发送到线圈元件（38），使得每个发射的RF脉冲组产生偏移具有彼此偏移的零交叉点（120,122）的电场（110,112）。图像处理器（62）从具有不同加权的至少两组RF脉冲引起的共振计算电容率图。

2. 发明申请

US20090102480A1 SHIMMING OF ELECTRIC FIELD FOR ELECTRIC PROPERTIES TOMOGRAPHY 有权
标题翻译：电力电子学研究
公开(公告)号：US20090102480A1
公开(公告)日：2009-04-23
申请号：US12297662
申请日：2007-04-03
申请人： Ulrich Katscher , Peter Vernickel , Marius Hanft
发明人： Ulrich Katscher , Peter Vernickel , Marius Hanft
IPC分类号： G01R33/48
CPC分类号： G01R33/48 , A61B5/0536 , G01R33/4808
摘要： A radio frequency coil system (34) used in the context of electric properties tomography (EPT, electrical impedance tomography, EIT, applied potential tomography, APT) generates radio frequency excitation pulses in an examination region (14). The radio frequency coil system (34) includes N coil elements (38) which generate magnetic (H) and electric (E) fields. A weight setting device (54) sets weight factors for input signals for the coil elements (38). A transmitting system (52) creates RF pulses, at least two sets of each with differently weighted input signals, and transmits the at least two sets of RF pulses to the coil elements (38) such that each of the transmitted RF pulse sets generates shifted electric fields (110, 112) having a shifted zero crossing point (120, 122) from each other. An image processor (62) computes electric permittivity maps from resonance induced by the at least two sets of RF pulses with different weighting.
摘要翻译：在电性能断层摄影（EPT，电阻断层扫描，EIT，应用电位层析成像，APT）的上下文中使用的射频线圈系统（34）在检查区域（14）中产生射频激励脉冲。射频线圈系统（34）包括产生磁（H）和电（E）场的N个线圈元件（38）。权重设定装置（54）为线圈元件（38）的输入信号设定权重因子。发射系统（52）产生RF脉冲，每个具有不同加权的输入信号的至少两组，并且将至少两组RF脉冲发送到线圈元件（38），使得每个发射的RF脉冲组产生偏移具有彼此偏移的零交叉点（120,122）的电场（110,112）。图像处理器（62）从具有不同加权的至少两组RF脉冲引起的共振计算电容率图。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式