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    • 95. 发明专利
    • Method for acquiring tomosynthesis image
    • 获取TOMOSYNTHESIS图像的方法
    • JP2008062058A
    • 2008-03-21
    • JP2007223344
    • 2007-08-30
    • General Electric Co ゼネラル・エレクトリック・カンパニイGeneral Electric Company
    • SOUCHAY HENRIFAYE IBRAHIMAIORDACHE RAZVAN G
    • A61B6/02A61B6/00
    • A61B6/502A61B6/025A61B6/482A61B6/542A61B6/544
    • PROBLEM TO BE SOLVED: To provide a method for acquiring tomosynthesis image with an enhanced optionality for detecting radiological indications.
      SOLUTION: The present invention suggests a policy for radiation dose distribution regarding a method to acquire tomosynthesis image with an enhanced optionality for detecting radiological indications. This policy is defined as a function for substantially even depth of focus for different size and kind of radiological indications. This policy is combined with a digital filter processing for the purpose of ensuring an optimal transmission beyond the frequency spectrum of the signal versus noise ratio. The digital filter processing is performed by the adaptive filter of a class required when controlling the noise transmission which is being re-structured. The filter to be adapted to each projection of X-ray tube (4) depends on the dose distributed to the projection.
      COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:提供一种用于获取具有增强的用于检测放射学指示的可选性的体层合成图像的方法。 解决方案:本发明提出了关于获取具有增强的用于检测放射学指示的可选性的获取断层图像的方法的辐射剂量分布的策略。 该政策被定义为对于不同大小和种类的放射学指示的基本均匀的焦点深度的功能。 该策略与数字滤波处理结合在一起,以确保超出信噪比频谱的最佳传输。 数字滤波处理由控制重新构造的噪声传输所需的类的自适应滤波器进行。 适合于X射线管(4)的每个投影的滤光片取决于分配给投影的剂量。 版权所有(C)2008,JPO&INPIT
    • 96. 发明专利
    • Mammography apparatus
    • 摄影装置
    • JP2007289640A
    • 2007-11-08
    • JP2006271420
    • 2006-10-03
    • Fujifilm Corp富士フイルム株式会社
    • SENDAI TOMONARI
    • A61B6/00A61B6/04
    • A61B6/542A61B6/0414A61B6/4494A61B6/502A61B6/544
    • PROBLEM TO BE SOLVED: To obtain a breast image having an optimum density with reduced burden on the subject. SOLUTION: The mammography apparatus includes a radiation irradiation section 2 and an object table 4 connected to an arm such that they face each other, and the breast M compressed onto the object table 4 using a compression paddle 7 is imaged by rotating the arm according to the imaging direction. In the apparatus, the size of the breast M of the subject is detected, and the position of a dose detector 20 is changed along the side of the object table 4 facing the chest wall of the subject according to the detected size of the breast M and the angle of rotation θ of the arm 5 when rotated. COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:获得具有减轻负担的最佳密度的乳房图像。 解决方案:乳房X线照相术装置包括辐射照射部分2和连接到臂的对象台4,使得它们彼此面对,并且使用压缩桨7压缩到对象台4上的乳房M通过旋转 根据成像方向进行手臂。 在该装置中,检测对象的乳房M的尺寸,并且根据检测到的乳房M的尺寸沿剂量检测器20的位置沿对象台4的面向对象的胸壁的侧面改变 以及当旋转时臂5的旋转角θ。 版权所有(C)2008,JPO&INPIT