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    Method and system for controlling x-ray focal spot characteristics for tomosynthesis and mammography imaging
    27.
    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.

    Inventor： Baorui Ren ,  Jay Stein ,  Zhenxue Jing ,  Andrew Smith

    IPC: G21K1/08 ,  H01J35/30 ,  G01N23/083 ,  A61B6/02 ,  H05G1/52 ,  H01J35/14 ,  A61B6/00 ,  A61B6/03

    CPC classification number: A61B6/4021 ,  A61B6/025 ,  A61B6/032 ,  A61B6/502 ,  H01J35/14 ,  H05G1/52

    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

    TOMOSYNTHESIS WITH SHIFTING FOCAL SPOT AND OSCILLATING COLLIMATOR BLADES
    28.
    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：US20140016737A1

    公开(公告)日：2014-01-16

    申请号：US13966606

    申请日：2013-08-14

    Applicant: Hologic, Inc.

    Inventor： Baorui Ren ,  Andrew P. Smith ,  Thomas Farbizio ,  Zhenxue Jing ,  Jay Stein

    IPC: A61B6/03

    CPC classification number: A61B6/06 ,  A61B6/025 ,  A61B6/03 ,  A61B6/035 ,  A61B6/502 ,  G21K1/02 ,  G21K1/04

    Abstract: 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.

    Abstract translation: 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。

    X-RAY MAMMOGRAPHY AND/OR BREAST TOMOSYNTHESIS USING A COMPRESSION PADDLE
    29.
    发明公开
    X-RAY MAMMOGRAPHY AND/OR BREAST TOMOSYNTHESIS USING A COMPRESSION PADDLE 审中-公开

    公开(公告)号：US20240245364A1

    公开(公告)日：2024-07-25

    申请号：US18439922

    申请日：2024-02-13

    Applicant: Hologic, Inc.

    Inventor： Timothy R. Stango ,  Kenneth F. DeFreitas ,  Ian Shaw ,  Jay Stein ,  Lynne Jameson-Meehan ,  Loren Niklason

    IPC: A61B6/04 ,  A61B6/02 ,  A61B6/50

    CPC classification number: A61B6/0414 ,  A61B6/025 ,  A61B6/04 ,  A61B6/502

    Abstract: An x-ray breast imaging system comprising a compression paddle in which the compression paddle comprises a front wall and a bottom wall. The front wall is configured to be adjacent and face a chest wall of a patient during imaging and the bottom wall configured to be adjacent a length of a top of a compressed breast. The bottom wall extends away from the patient's chest wall, wherein the bottom wall comprises a first portion and a second portion such that the second portion is between the front wall and the first portion. The first portion is generally non-coplanar to the second portion, wherein the compression paddle is movable along a craniocaudal axis. The x-ray breast imaging system also comprises a non-rigid jacket releasably secured to the compression paddle, the non-rigid jacket positioned between the compression paddle and the patient.

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