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公开(公告)号：US5150393A
公开(公告)日：1992-09-22
申请号：US743443
申请日：1991-08-09
摘要： An x-ray diagnostics installation for mammography exposures has a radiation detector for making a radiation measurement used to calculate the average parenchyma dose. The radiation detector is disposed on the support table next to the measurement field in which the mammary gland is disposed, and supplies a signal to a computer corresponding to the measured radiation dose at the detector location. The computer is programmed with the dependency of the average parenchyma dose, with respect to the radiation dose at the location of the radiation detector, and thus the computer generates a value corresponding to the average parenchyma dose, obtained by direct measurement rather than by calculation.
摘要翻译： 用于乳房摄影暴露的X射线诊断装置具有用于进行用于计算平均实质剂量的辐射测量的辐射检测器。 放射线检测器设置在支撑台上，邻近设置乳腺的测量区域，并将信号提供给与检测器位置处的测量的辐射剂量对应的计算机。 对计算机进行编程，相对于放射线检测器位置处的辐射剂量，平均实质剂量的依赖性，因此计算机产生对应于通过直接测量而不是计算获得的平均实质剂量的值。
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2.发明授权Diagnostic installation having a digital imaging system with computerized evaluation of an image of phantom 失效具有数字成像系统的诊断安装，具有对幻影图像的计算机化评估
公开(公告)号：US5844964A
公开(公告)日：1998-12-01
申请号：US928314
申请日：1997-09-12
CPC分类号： G01N23/046 , H04N17/002 , G01N2223/419 , G01N2223/612
摘要： An X-ray diagnostic installation includes an X-ray source and a radiation receiver and a digital imaging processing system, the digital imaging processing system including a computer which evaluates an X-ray image of a phantom by identifying visible details in the X-ray image of the phantom. The computer employs these identified visible details to automatically construct a contrast-detail graph of the phantom. The computer thus undertakes an automatic judgment of the imaging quality, without the need for a trained observer.
摘要翻译： X射线诊断装置包括X射线源和辐射接收器以及数字成像处理系统，该数字成像处理系统包括通过识别X射线中的可视细节来评估体模的X射线图像的计算机 幻影的形象。 计算机使用这些识别的可见细节来自动构建体模的对比度细节图。 因此，计算机不需要受过训练的观察者就能自动判断成像质量。
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3.发明授权Method for the compensation of image disturbances in the course of radiation image recordings and radiation image recording apparatus 有权用于补偿放射线图像记录和放射线图像记录装置过程中的图像干扰的方法公开(公告)号：US07070328B2
公开(公告)日：2006-07-04
申请号：US10803998
申请日：2004-03-19
IPC分类号： G21K1/02
CPC分类号： G01T1/2921 , B33Y80/00 , G01N23/04 , G01T1/1648 , H04N5/32
摘要： A method is for the compensation of image disturbances in the course of a radiation image recording caused by a defocusing of an antiscatter grid, arranged in the beam path between a beam source and a digital radiation image receiver and focused with respect to a specific distance from the focus of the beam source. Such image disturbances are caused by a defocusing-dictated attenuation of the primary radiation incident on the radiation image receiver. A solid-state image detector includes radiation-sensitive pixels arranged in matrix form and a device for pixelwise amplification of the radiation-dependent signals. In the method, at least some of the signals supplied in pixelwise fashion are amplified by an amplifying device in a manner dependent on the actual distance of the antiscatter grid from the focus.
摘要翻译： 一种方法是用于在放射图像记录过程中补偿图像干扰的过程中，该辐射图像记录由反散射网格的散焦引起，其布置在光束源和数字辐射图像接收器之间的光束路径中，并且相对于特定距离聚焦 光束源的重点。 这种图像干扰是由入射在辐射图像接收器上的主要辐射的散焦指定的衰减引起的。 固态图像检测器包括以矩阵形式布置的辐射敏感像素和用于对辐射相关信号进行像素放大的装置。 在该方法中，以像素方式提供的至少一些信号由取决于反散射网格与焦点的实际距离的放大装置放大。
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