公开(公告)号：US20130241555A1

公开(公告)日：2013-09-19

申请号：US13874795

申请日：2013-05-01

申请人： NATIONAL INSTITUTE OF RADIOLOGICAL SCIENCES ,  TOSHIBA MEDICAL SYSTEMS CORPORATION

发明人： Takayuki OBATA ,  Taiga YAMAYA ,  Iwao KANNO ,  Hitoshi YAMAGATA ,  Takuzo TAKAYAMA ,  Kazuya OKAMOTO

IPC分类号： G01R33/28

CPC分类号： G01R33/28 ,  A61B5/0035 ,  A61B5/055 ,  A61B6/037 ,  A61B6/4417 ,  G01R33/481 ,  G01T1/1603

摘要： In a PET (Positron Emission Tomography)-MRI (Magnetic Resonance Imaging) apparatus of an embodiment, a magnet that is a seamless structure generates a static magnetic field in a bore having a cylindrical shape. First detectors and second detectors are each formed in a ring shape and detect gamma rays emitted from positron emitting radionuclides injected into a subject. The first detectors and the second detectors are disposed with a space therebetween in an axial direction of the bore so as to interpose the magnetic field center of the static magnetic field therebetween.

摘要翻译： 在实施例的PET（正电子发射断层摄影）-MRI（磁共振成像）装置中，作为无缝结构的磁体在具有圆柱形状的孔中产生静磁场。 第一检测器和第二检测器各自形成为环形，并且检测从注射到受试者中的正电子发射放射性核素发射的γ射线。 第一检测器和第二检测器在孔的轴向方向上设置有空间，以将静磁场的磁场中心插入其间。

公开(公告)号：US20130234710A1

公开(公告)日：2013-09-12

申请号：US13873706

申请日：2013-04-30

申请人： NATIONAL INSTITUTE OF RADIOLOGICAL SCIENCES ,  TOSHIBA MEDICAL SYSTEMS CORPORATION

发明人： Iwao KANNO ,  Takayuki OBATA ,  Taiga YAMAYA ,  Kazuya OKAMOTO ,  Takuzo TAKAYAMA ,  Hitoshi YAMAGATA

IPC分类号： G01R33/422

CPC分类号： G01R33/422 ,  A61B5/0035 ,  A61B5/055 ,  A61B6/037 ,  A61B6/4417 ,  A61B6/5235 ,  A61B6/5247 ,  G01R33/481 ,  G01T1/1603

摘要： In a PET (Positron Emission Tomography)-MRI (Magnetic Resonance Imaging) apparatus of an embodiment, a transmitting radio frequency coil applies a radio frequency magnetic field on a subject placed in a static magnetic field. A detector is formed in a ring shape, disposed on a side adjacent to an outer circumference of the transmitting radio frequency coil, includes at least two PET detectors disposed with a space therebetween in an axial direction of a bore so as to interpose the magnetic field center of the static magnetic field therebetween, and detects gamma rays emitted from positron emitting radionuclides injected into the subject. Radio frequency shields are each formed in an approximately cylindrical shape, disposed between the transmitting radio frequency coil and the detector, and shield the radio frequency magnetic field generated by the transmitting radio frequency coil.

摘要翻译： 在实施例的PET（正电子发射断层摄影）-MRI（磁共振成像）装置中，发射射频线圈对放置在静磁场中的被摄体施加射频磁场。 检测器形成为环形，设置在与发射射频线圈的外周相邻的一侧，包括至少两个在孔的轴向方向上设置有空间的PET检测器，以便将磁场 并且检测从注射到被检体内的正电子发射放射性核素发出的γ射线。 射频屏蔽各自形成为大致圆筒形，设置在发射射频线圈和检测器之间，并屏蔽由发射射频线圈产生的射频磁场。