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    Method and system for controlling X-ray focal spot characteristics for tomosynthesis and mammography imaging
    1.
    发明授权
    Method and system for controlling X-ray focal spot characteristics for tomosynthesis and mammography imaging 有权
    控制X射线焦点特征的方法和系统，用于体层摄影和乳房X线照相成像

    公开(公告)号：US08457282B2

    公开(公告)日：2013-06-04

    申请号：US12623472

    申请日：2009-11-23

    申请人： Ren Baorui ,  Jay Stein ,  Zhenxue Jing ,  Andrew Smith

    发明人： Ren Baorui ,  Jay Stein ,  Zhenxue Jing ,  Andrew Smith

    IPC分类号： H01J35/30 ,  G01N23/083 ,  H05G1/60 ,  A61B6/04

    CPC分类号： A61B6/4021 ,  A61B6/025 ,  A61B6/032 ,  A61B6/502 ,  H01J35/14 ,  H05G1/52

    摘要： An x-ray tube is described that includes components for increasing x-ray image clarity in the presence of a moving x-ray source by modifying focal spot characteristics, including focal spot size and focal spot position. In a first arrangement a static focal spot is moved in a direction contrary to the movement of the x-ray source so that an effective focal spot position is essentially fixed in space relative to one of the imaged object and/or detector during a tomosynthesis exposure. In a second arrangement, the size of the static focal spot is increased, and the resulting increase in tube current reduces the exposure time and concomitant blur effect. The methods may be used alone or in combination; for example an x-ray tube with a larger, moveable static focal spot will result in a system that fully utilizes the x-ray tube generator, provides a high quality image with reduced blur and, due to the decrease in exposure time, may scan the patient more quickly.

    摘要翻译： 描述了一种X射线管，其包括用于通过改变焦点特性（包括焦点尺寸和焦斑位置）来增加在存在移动的X射线源的情况下增加x射线图像清晰度的部件。 在第一布置中，静止焦点在与x射线源的移动相反的方向上移动，使得在断层合成曝光期间相对于成像对象和/或检测器中的一个，有效焦点位置基本上固定在空间中 。 在第二种布置中，静态焦点的尺寸增加，并且由此导致的管电流的增加降低了曝光时间并伴随着模糊效果。 这些方法可以单独使用或组合使用; 例如具有较大的可移动静电焦斑的X射线管将导致完全利用x射线管发生器的系统，提供具有减少的模糊的高质量图像，并且由于曝光时间的减少可能扫描 病人更快

    Full field mammography with tissue exposure control, tomosynthesis, and dynamic field of view processing
    2.
    发明申请
    Full field mammography with tissue exposure control, tomosynthesis, and dynamic field of view processing 有权
    全场乳房X线摄影与组织曝光控制，断层合成和动态视野处理

    公开(公告)号：US20070030949A1

    公开(公告)日：2007-02-08

    申请号：US11582061

    申请日：2006-10-16

    申请人： Zhenxue Jing ,  Georgia Hitzke ,  Donald Kennedy ,  Andrew Smith ,  Jay Stein

    发明人： Zhenxue Jing ,  Georgia Hitzke ,  Donald Kennedy ,  Andrew Smith ,  Jay Stein

    IPC分类号： A61B6/04

    CPC分类号： A61B6/502 ,  A61B6/025 ,  A61B6/06 ,  A61B6/4035 ,  A61B6/4291 ,  A61B6/482

    摘要： A mammography system using a tissue exposure control relying on estimates of the thickness of the compressed and immobilized breast and of breast density to automatically derive one or more technic factors. The system further uses a tomosynthesis arrangement that maintains the focus of an anti-scatter grid on the x-ray source and also maintains the field of view of the x-ray receptor. Finally, the system finds an outline that forms a reduced field of view that still encompasses the breast in the image, and uses for further processing, transmission or archival storage the data within said reduced field of view.

    摘要翻译： 依赖于压缩和固定的乳房的厚度的估计和乳房密度的使用组织暴露控制的乳房摄影系统自动导出一个或多个技术因素。 该系统进一步使用将X射线源上的抗散射栅格的焦点保持在X射线受体的视野的层析合成装置。 最后，系统发现形成仍然包含图像中的乳房的缩小视野的轮廓，并且用于在所述减少的视野内进一步处理，传输或存档数据。

    TOMOSYNTHESIS WITH SHIFTING FOCAL SPOT AND OSCILLATING COLLIMATOR BLADES
    4.
    发明申请
    TOMOSYNTHESIS WITH SHIFTING FOCAL SPOT AND OSCILLATING COLLIMATOR BLADES 有权
    具有移位焦点位置和振荡收缩片的TOMOSYNTHESIS

    公开(公告)号：US20110188624A1

    公开(公告)日：2011-08-04

    申请号：US12849294

    申请日：2010-08-03

    申请人： Baorui Ren ,  Andrew Smith ,  Tom Farbizio ,  Zhenxue Jing ,  Jay Stein

    发明人： Baorui Ren ,  Andrew Smith ,  Tom Farbizio ,  Zhenxue Jing ,  Jay Stein

    IPC分类号： A61B6/03 ,  G21K1/04

    CPC分类号： A61B6/06 ,  A61B6/025 ,  A61B6/03 ,  A61B6/035 ,  A61B6/502 ,  G21K1/02 ,  G21K1/04

    摘要： In a tomosynthesis system a static focal spot is moved in a direction opposite to and generally synchronized with the directional movement of an x-ray source and X-ray collimator blades are moved during each exposure in synchronization with the shifting of the static focal spot. The synchronized movement of the static focal spot, x-ray tube and collimator blades helps keep the effective focal spot fixed in space relative to the breast, detector or both during the entire duration of the exposure and keeps the x-ray field on the detector and breast static. The shifting collimator blades follow an oscillating pattern over the multiple x-ray exposures of a tomosynthesis scan.

    摘要翻译： 在断层合成系统中，静态焦点沿着与X射线源的定向运动相反并且大体上与X射线源的定向运动相同的方向移动，并且与静态焦点的移动同步地在每次曝光期间移动X射线准直器叶片。 静态焦点，X射线管和准直器刀片的同步运动有助于在曝光的整个持续时间内将有效焦斑保持在相对于乳房，检测器或两者的空间中，并将X射线场保持在检测器 和乳房静电。 移位准直器刀片遵循断层扫描合成扫描的多次X射线曝光的振荡模式。

    Tomosynthesis with shifting focal spot and oscillating collimator blades
    9.
    发明授权
    Tomosynthesis with shifting focal spot and oscillating collimator blades 有权
    具有移动焦点和振荡准直器叶片的合成

    公开(公告)号：US08515005B2

    公开(公告)日：2013-08-20

    申请号：US12849294

    申请日：2010-08-03

    申请人： Baorui Ren ,  Andrew Smith ,  Tom Farbizio ,  Zhenxue Jing ,  Jay Stein

    发明人： Baorui Ren ,  Andrew Smith ,  Tom Farbizio ,  Zhenxue Jing ,  Jay Stein

    IPC分类号： A61B6/04 ,  A61B6/00 ,  G21K5/10

    CPC分类号： A61B6/06 ,  A61B6/025 ,  A61B6/03 ,  A61B6/035 ,  A61B6/502 ,  G21K1/02 ,  G21K1/04

    摘要： In a tomosynthesis system a static focal spot is moved in a direction opposite to and generally synchronized with the directional movement of an x-ray source and X-ray collimator blades are moved during each exposure in synchronization with the shifting of the static focal spot. The synchronized movement of the static focal spot, x-ray tube and collimator blades helps keep the effective focal spot fixed in space relative to the breast, detector or both during the entire duration of the exposure and keeps the x-ray field on the detector and breast static. The shifting collimator blades follow an oscillating pattern over the multiple x-ray exposures of a tomosynthesis scan.

    摘要翻译： 在断层合成系统中，静态焦点沿着与X射线源的定向运动相反并且大体上与X射线源的定向运动相同的方向移动，并且与静态焦点的移动同步地在每次曝光期间移动X射线准直器叶片。 静态焦点，X射线管和准直器刀片的同步运动有助于在曝光的整个持续时间内将有效焦斑保持在相对于乳房，检测器或两者的空间中，并将X射线场保持在检测器 和乳房静电。 移位准直器刀片遵循断层扫描合成扫描的多次X射线曝光的振荡模式。