公开(公告)号：US20130294573A1

公开(公告)日：2013-11-07

申请号：US13933704

申请日：2013-07-02

Applicant: Analogic Corporation

Inventor： Enrico Dolazza ,  Sorin Marcovici ,  Wei Zhao ,  Jonathan Greenspan ,  Luc Laperriere ,  Olivier Tousignant

IPC: A61B6/02 ,  A61B6/03

CPC classification number: A61B6/4241 ,  A61B6/025 ,  A61B6/032 ,  A61B6/502 ,  G01T1/00 ,  G06T11/005 ,  G06T2211/436

Abstract: Tomosynthesis data may be acquired from an ionizing radiation source that substantially continuously emits radiation while its position is varied relative to a photon counting detector. The detector detects photons comprised within the radiation and photon data indicative of the detected photons is generated. The photon data may comprise data related to a detected photon's detection time, detection location on the detector, energy level, and/or trajectory from the radiation source, for example. The photon data of various photons may be compiled into a plurality of bins and, through reconstruction and tomosynthesis techniques, produce synthesized images of various tomography planes of an object under examination. In this way, the tomosynthesis techniques rely on counting photons rather than measuring their energy to create synthesized images.

Abstract translation: 可以从电离辐射源获取重复合成数据，所述电离辐射源基本上连续地发射辐射，同时其位置相对于光子计数检测器变化。 检测器检测包含在辐射内的光子，并且产生指示检测到的光子的光子数据。 例如，光子数据可以包括与检测到的光子的检测时间，检测器上的检测位置，能级和/或来自辐射源的轨迹有关的数据。 各种光子的光子数据可以被编译成多个箱，并且通过重建和层析合成技术产生被检查物体的各种层析成像平面的合成图像。 以这种方式，断层合成技术依赖于计数光子而不是测量其能量以产生合成图像。

公开(公告)号：US09739724B2

公开(公告)日：2017-08-22

申请号：US14640710

申请日：2015-03-06

Applicant: Analogic Corporation

Inventor： Zhengrong Ying ,  Sergey Simanovsky ,  Ram Naidu ,  Sorin Marcovici

IPC: A61B6/00 ,  G01N23/04 ,  A61B6/03 ,  A61B6/02 ,  G01T7/08 ,  G01V5/00

CPC classification number: G01N23/046 ,  A61B6/027 ,  A61B6/032 ,  A61B6/4007 ,  A61B6/4028 ,  A61B6/405 ,  A61B6/466 ,  A61B6/482 ,  G01N2223/419 ,  G01T7/08 ,  G01V5/005

Abstract: A CT scanning system may include a multi-pixel x-ray source, and a detector array. The multi-pixel x-ray source may have a plurality of pixels that are disposed along a z-axis, and that are sequentially activated so as to controllably emit x-rays in response to incident electrons. The detector array may have one or more rows of x-ray detectors that detect the x-rays that are emitted from the pixels and have traversed an object, and generate data for CT image reconstruction system. In third generation CT scanning systems, the number of detector rows may be reduced. Multi-pixel x-ray source implementation of saddle curve geometry may render a single rotation single organ scan feasible. Using a multi-pixel x-ray source in stationary CT scanning systems may allow x-ray beam design with a minimal coverage to satisfy mathematical requirements for reconstruction.

公开(公告)号：US08824628B2

公开(公告)日：2014-09-02

申请号：US13933704

申请日：2013-07-02

Applicant: Analogic Corporation

Inventor： Enrico Dolazza ,  Sorin Marcovici ,  Wei Zhao ,  Jonathan Greenspan ,  Luc Laperriere ,  Olivier Tousignant

IPC: A61B6/03 ,  A61B6/00

CPC classification number: A61B6/4241 ,  A61B6/025 ,  A61B6/032 ,  A61B6/502 ,  G01T1/00 ,  G06T11/005 ,  G06T2211/436

Abstract: Tomosynthesis data may be acquired from an ionizing radiation source that substantially continuously emits radiation while its position is varied relative to a photon counting detector. The detector detects photons comprised within the radiation and photon data indicative of the detected photons is generated. The photon data may comprise data related to a detected photon's detection time, detection location on the detector, energy level, and/or trajectory from the radiation source, for example. The photon data of various photons may be compiled into a plurality of bins and, through reconstruction and tomosynthesis techniques, produce synthesized images of various tomography planes of an object under examination. In this way, the tomosynthesis techniques rely on counting photons rather than measuring their energy to create synthesized images.

Abstract translation: 可以从电离辐射源获取重复合成数据，所述电离辐射源基本上连续地发射辐射，同时其位置相对于光子计数检测器变化。 检测器检测包含在辐射内的光子，并且产生指示检测到的光子的光子数据。 例如，光子数据可以包括与检测到的光子的检测时间，检测器上的检测位置，能级和/或来自辐射源的轨迹有关的数据。 各种光子的光子数据可以被编译成多个箱，并且通过重建和层析合成技术产生被检查物体的各种层析成像平面的合成图像。 以这种方式，断层合成技术依赖于计数光子而不是测量其能量以产生合成图像。

公开(公告)号：US20150177165A1

公开(公告)日：2015-06-25

申请号：US14640710

申请日：2015-03-06

Applicant: Analogic Corporation

Inventor： Zhengrong Ying ,  Sergey Simanovsky ,  Ram Naidu ,  Sorin Marcovici

IPC: G01N23/04 ,  G01V5/00 ,  G01T7/08

CPC classification number: G01N23/046 ,  A61B6/027 ,  A61B6/032 ,  A61B6/4007 ,  A61B6/4028 ,  A61B6/405 ,  A61B6/466 ,  A61B6/482 ,  G01N2223/419 ,  G01T7/08 ,  G01V5/005

Abstract: A CT scanning system may include a multi-pixel x-ray source, and a detector array. The multi-pixel x-ray source may have a plurality of pixels that are disposed along a z-axis, and that are sequentially activated so as to controllably emit x-rays in response to incident electrons. The detector array may have one or more rows of x-ray detectors that detect the x-rays that are emitted from the pixels and have traversed an object, and generate data for CT image reconstruction system. In third generation CT scanning systems, the number of detector rows may be reduced. Multi-pixel x-ray source implementation of saddle curve geometry may render a single rotation single organ scan feasible. Using a multi-pixel x-ray source in stationary CT scanning systems may allow x-ray beam design with a minimal coverage to satisfy mathematical requirements for reconstruction.

Abstract translation: CT扫描系统可以包括多像素x射线源和检测器阵列。 多像素x射线源可以具有沿着z轴设置的多个像素，并且被依次激活以响应入射电子可控地发射x射线。 检测器阵列可以具有一行或多行x射线检测器，其检测从像素发射并穿过物体的X射线，并生成CT图像重建系统的数据。 在第三代CT扫描系统中，可以减少检测器行的数量。 鞍形曲线几何的多像素x射线源实现可能使单次旋转单一器官扫描成为可能。 在固定CT扫描系统中使用多像素X射线源可以允许具有最小覆盖的x射线束设计以满足重建的数学要求。