公开(公告)号：US08942341B2

公开(公告)日：2015-01-27

申请号：US13223665

申请日：2011-09-01

申请人： Jiang Hsieh ,  Abdelaziz Ikhlef ,  Paavana Sainath ,  Xiaoye Wu ,  Roman Melnyk

发明人： Jiang Hsieh ,  Abdelaziz Ikhlef ,  Paavana Sainath ,  Xiaoye Wu ,  Roman Melnyk

IPC分类号： A61B6/03 ,  G21K3/00 ,  A61B6/06 ,  A61B6/00

CPC分类号： A61B6/032 ,  A61B6/06 ,  A61B6/4078 ,  A61B6/503 ,  A61B6/542

摘要： A CT system includes an x-ray source configured to project an x-ray beam toward an object, a detector array, and a bowtie filter. The bowtie filter includes a first x-ray filtration region positioned to attenuate x-rays that pass through an isochannel of the detector array, a second x-ray filtration region positioned to attenuate x-rays that pass through channels of the detector array that are offcenter in a channel direction from the isochannel, and an x-ray attenuation material positionable to attenuate the x-rays that pass through the channels of the detector array that are offcenter in the channel direction from the isochannel. The CT system also includes a data acquisition system (DAS) connected to the detector array and configured to receive outputs from the detector array, and a computer programmed to acquire projections of imaging data of the object, and generate an image of the object using the imaging data.

摘要翻译： CT系统包括被配置为将X射线束投影到物体的X射线源，检测器阵列和bowtie滤波器。 弓形过滤器包括第一x射线过滤区域，其定位成衰减穿过检测器阵列的等通道的x射线;第二x射线过滤区域，其被定位成衰减穿过检测器阵列的通道的x射线， 离子中心在来自等信道的通道方向上，以及x射线衰减材料，其可定位成衰减穿过检测器阵列的通道的X射线，所述X射线在通道方向上偏离同步通道。 CT系统还包括连接到检测器阵列并被配置为接收来自检测器阵列的输出的数据采集系统（DAS），以及被编程为获取对象的成像数据的投影的计算机，并且使用 成像数据。

公开(公告)号：US20130058451A1

公开(公告)日：2013-03-07

申请号：US13223665

申请日：2011-09-01

申请人： Jiang Hsieh ,  Abdelaziz Ikhlef ,  Paavana Sainath ,  Xiaoye Wu ,  Roman Melnyk

发明人： Jiang Hsieh ,  Abdelaziz Ikhlef ,  Paavana Sainath ,  Xiaoye Wu ,  Roman Melnyk

IPC分类号： A61B6/03

CPC分类号： A61B6/032 ,  A61B6/06 ,  A61B6/4078 ,  A61B6/503 ,  A61B6/542

摘要： A CT system includes an x-ray source configured to project an x-ray beam toward an object, a detector array, and a bowtie filter. The bowtie filter includes a first x-ray filtration region positioned to attenuate x-rays that pass through an isochannel of the detector array, a second x-ray filtration region positioned to attenuate x-rays that pass through channels of the detector array that are offcenter in a channel direction from the isochannel, and an x-ray attenuation material positionable to attenuate the x-rays that pass through the channels of the detector array that are offcenter in the channel direction from the isochannel. The CT system also includes a data acquisition system (DAS) connected to the detector array and configured to receive outputs from the detector array, and a computer programmed to acquire projections of imaging data of the object, and generate an image of the object using the imaging data.

摘要翻译： CT系统包括被配置为将X射线束投影到物体的X射线源，检测器阵列和bowtie滤波器。 弓形过滤器包括第一x射线过滤区域，其定位成衰减穿过检测器阵列的等通道的x射线;第二x射线过滤区域，其被定位成衰减穿过检测器阵列的通道的x射线， 离子中心在来自等信道的通道方向上，以及x射线衰减材料，其可定位成衰减穿过检测器阵列的通道的X射线，所述X射线在通道方向上偏离同步通道。 CT系统还包括连接到检测器阵列并被配置为接收来自检测器阵列的输出的数据采集系统（DAS），以及被编程为获取对象的成像数据的投影的计算机，并且使用 成像数据。