Full field mammography with tissue exposure control, tomosynthesis, and dynamic field of view processing
    1.
    发明授权
    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:US08831171B2

    公开(公告)日:2014-09-09

    申请号:US13857503

    申请日:2013-04-05

    Applicant: Hologic, Inc.

    Abstract: 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.

    Abstract translation: 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。

    Method and System for Controlling X-Ray Focal Spot Characteristics for Tomosynthesis and Mammography Imaging
    2.
    发明申请
    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,用于骨骼肌合成和乳房X线照相成像

    公开(公告)号:US20130259192A1

    公开(公告)日:2013-10-03

    申请号:US13905264

    申请日:2013-05-30

    Applicant: Hologic, Inc.

    Abstract: 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.

    Abstract translation: 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; 例如具有较大可移动静电焦点的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

    Method and system for controlling x-ray focal spot characteristics for tomosynthesis and mammography imaging
    4.
    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,用于断层合成和乳房X线照相成像

    公开(公告)号:US08873716B2

    公开(公告)日:2014-10-28

    申请号:US13905264

    申请日:2013-05-30

    Applicant: Hologic, Inc.

    Abstract: 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.

    Abstract translation: 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,静止焦斑在与x射线源的运动相反的方向上移动,使得在断层合成曝光期间,有效焦点位置相对于成像对象和/或检测器之一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; 例如具有较大可移动静电焦点的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

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