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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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公开(公告)号：US5371777A
公开(公告)日：1994-12-06
申请号：US60529
申请日：1993-05-13
申请人： Karlheinz Koehler , Horst Aichinger
发明人： Karlheinz Koehler , Horst Aichinger
摘要： An automatic x-ray exposure unit for mammography permits a correction of the mAs product dependent on the subject thickness without the need for obtaining a transparency signal, and thus without the need for the double detector normally needed for that purpose. The automatic x-ray exposure unit permits the correction to be undertaken on site, prior to conducting an actual examination, and thus can be used for film/foil systems, such as customized systems for which no previous transparency data has been obtained. This is accomplished in an automatic x-ray exposure unit where the mAs product is obtained for a fraction (1/n) of the total exposure, and a total exposure value is then obtained by multiplying the fractional value by n. These values are used to generate a characteristic curve, which is stored, for the film/foil system being used. If it is then necessary to switch (adjust) the mAs value due to the subject thickness, this can be done using the stored curve.
摘要翻译： 用于乳房摄影的自动X射线曝光单元允许根据被摄体厚度校正mAs产品，而不需要获得透明度信号，因此不需要为此目的而通常需要的双重检测器。 自动X射线曝光单元允许在进行实际检查之前现场进行校正，因此可以用于薄膜/箔系统，例如没有获得先前透明度数据的定制系统。 这是在自动X射线曝光单元中实现的，其中获得总曝光的分数（1 / n）的mAs乘积，然后通过将分数值乘以n获得总曝光值。 这些值用于产生用于所使用的胶片/箔系统的特征曲线。 如果需要切换（调整）由于被测物厚度引起的mAs值，则可以使用存储的曲线来完成。
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公开(公告)号：US5029338A
公开(公告)日：1991-07-02
申请号：US244343
申请日：1988-09-15
申请人： Horst Aichinger , Karlheinz Koehler
发明人： Horst Aichinger , Karlheinz Koehler
摘要： An x-ray diagnostics installation has an image intensifier/video chain for generating a television image of an examination subject. A portion of the light generated by the output screen of the x-ray image intensifier is directed to a semiconductor detector which monitors the average brightness of the output luminescent screen so that the x-ray dose can be accordingly controlled. The detector has a surface on which the entire output image of the x-ray image intensifier can be imaged, and is connected to a control unit which selects a portion of the semiconductor detector surface which will be used to generate the control signal. The detector includes a diaphragm in the form of a liquid crystal matrix, the matrix being controllable by the control unit to selectively admit or block light to the surface of the semiconductor detector, thereby controlling the regions which will be used to generate the control signal.
摘要翻译： X射线诊断装置具有用于产生检查对象的电视图像的图像增强器/视频链。 由X射线图像增强器的输出屏幕产生的光的一部分被引导到半导体检测器，该半导体检测器监视输出荧光屏的平均亮度，从而可以相应地控制x射线剂量。 检测器具有能够对x射线图像增强器的整个输出图像进行成像的表面，并连接到控制单元，该控制单元选择将用于产生控制信号的半导体检测器表面的一部分。 检测器包括液晶矩阵形式的隔膜，该矩阵由控制单元控制，以便选择性地将光导入或阻挡到半导体检测器的表面，从而控制将用于产生控制信号的区域。
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公开(公告)号：US4905150A
公开(公告)日：1990-02-27
申请号：US261084
申请日：1988-10-24
申请人： Horst Aichinger , Karlheinz Koehler
发明人： Horst Aichinger , Karlheinz Koehler
IPC分类号： G01N23/04 , A61B6/00 , A61B6/10 , A61B10/00 , A61B17/00 , G01T1/161 , G06Q50/00 , H05G1/26 , H05G1/36 , H05G1/46
CPC分类号： A61B6/502 , H05G1/26 , H05G1/36 , H05G1/46 , A61B2017/00716 , A61B2017/00725 , A61B6/583
摘要： An x-ray diagnostics installation, of the type suitable for mammography, includes a calculator, such as a computer, which calculates the mean parenchyma dose based on a prescribed relationship from exposure values. The mean parenchyma dose can be read from the computer by a printer to obtain a permanent record.
摘要翻译： 适用于乳房X线照相术的X射线诊断装置包括计算器，例如计算机，其根据曝光值根据规定的关系计算平均实质剂量。 可以通过打印机从计算机读取平均实质剂量以获得永久记录。
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公开(公告)号：US4104524A
公开(公告)日：1978-08-01
申请号：US771847
申请日：1977-02-25
摘要： In an illustrated embodiment, a detector having a plurality of measuring fields is provided with a computer circuit for the formation of a difference signal which corresponds to the difference between the greatest and the smallest output signal of the measuring fields, a computer circuit for the formation of a sum signal which corresponds to the sum of the greatest and the smallest output signal of the measuring fields, and a division circuit is connected to provide an output as a function of the difference signal divided by the sum signal, as a measure of contrast over the selected measurement surface. The contrast signal can be utilized to control the duration of an exposure. Further, the contrast signal can be used for an automatic adjustment of the x-ray tube high voltage during an exposure so as to achieve an optimum picture contrast.
摘要翻译： 在示出的实施例中，具有多个测量场的检测器设置有用于形成对应于测量场的最大和最小输出信号之间的差的差分信号的计算机电路，用于形成的计算机电路 一个和信号对应于测量场的最大和最小输出信号之和的和信号，并且除法电路被连接以提供作为差分信号除以和信号的函数的输出作为对比度 超过选定的测量面。 对比度信号可用于控制曝光的持续时间。 此外，对比度信号可以用于在曝光期间自动调整X射线管高电压，以获得最佳图像对比度。
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7.发明授权X-ray diagnostics installation having means for forming a transparency signal 失效X射线诊断装置具有用于形成透明度信号的装置
公开(公告)号：US5396532A
公开(公告)日：1995-03-07
申请号：US136257
申请日：1993-10-15
申请人： Horst Aichinger , Karlheinz Koehler
发明人： Horst Aichinger , Karlheinz Koehler
摘要： In an x-ray diagnostics installation for mammography, an automatic setting of the optimum beam quality ensues in combination with transparency matching. A set of exposure parameters corresponding to different thicknesses of the examination subject is stored in a memory (reference values). At the beginning of an x-ray exposure, a comparator compares the transparency signal (actual value) to the exposure parameters (reference value) interrogated from the memory dependent on the current thickness of the examination subject, and influences the x-ray tube voltage for the purpose of a rated/actual value comparison without interrupting the exposure.
摘要翻译： 在用于乳房X线照相术的X射线诊断装置中，最佳光束质量的自动设置与透明度匹配相结合。 对应于检查对象的不同厚度的一组曝光参数被存储在存储器（参考值）中。 在X射线曝光开始时，比较器将透明度信号（实际值）与从存储器询问的曝光参数（参考值）进行比较，取决于检查对象的当前厚度，并影响x射线管电压 用于额定/实际值比较而不中断曝光。
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8.发明授权X-Ray diagnostic generator with an inverter supplying the high voltage transformer 失效带有供电高压变压器的变频器的X射线诊断发生器
公开(公告)号：US4309612A
公开(公告)日：1982-01-05
申请号：US79507
申请日：1979-09-27
申请人： Horst Aichinger
发明人： Horst Aichinger
摘要： In order to regulate the dose rate, the pulse-pause ratio of the inverter is changed. For this purpose, the regulator can be designed in such manner that, within a predetermined range of the error signal it changes this pulse-pause ratio via a regulating unit and, upon transgression of this range, changes the peak voltage supplied to the inverter via a regulator unit upon constant maintenance of a minimum pulse-pause ratio.
摘要翻译： 为了调节剂量率，改变逆变器的脉冲 - 暂停比。 为此，可以将调节器设计成使得在误差信号的预定范围内，经由调节单元改变该脉冲 - 暂停比率，并且在该范围违反时，改变提供给逆变器的峰值电压经由 恒定维持最小脉冲 - 暂停比的调节器单元。
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公开(公告)号：US5485501A
公开(公告)日：1996-01-16
申请号：US288043
申请日：1994-08-10
申请人： Horst Aichinger
发明人： Horst Aichinger
摘要： An x-ray examination installation includes an x-ray source for irradiating an examination subject with x-rays, and an automatic exposure unit having a radiation detector composed of a matrix of detector elements. Only the output signals of specified detector elements, which define the measuring field within which an optimum exposure should ensue, are utilized for generating a signal which is then supplied to the x-ray source for controlling the exposure dose. The automatic exposure unit is operated according to a method wherein a distribution of the grayscale values in a test image is first calculated, and subsequently the main image is produced with the previously-calculated distribution of grayscale values superimposed in the main image.
摘要翻译： X射线检查装置包括用于用X射线照射检查对象的X射线源和具有由检测器元件的矩阵组成的放射线检测器的自动曝光单元。 仅使用定义要在其中进行最佳曝光的测量场的指定检测器元件的输出信号来产生信号，然后将该信号提供给用于控制曝光剂量的x射线源。 根据首先计算测试图像中的灰度值的分布并随后以先前计算的叠加在主图像中的灰度值分布来产生主图像的方法来操作自动曝光单元。
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公开(公告)号：US4442539A
公开(公告)日：1984-04-10
申请号：US268811
申请日：1981-06-01
申请人： Horst Aichinger , Kurt Franke
发明人： Horst Aichinger , Kurt Franke
CPC分类号： H05G1/26 , G01T1/2921
摘要： A pinhole camera forms an image of the optical focal spot of an x-ray tube on a radiation-electrical transducer comprising an intensifier foil and a matrix of photo-sensitive detectors. A processing circuit including an adjustable amplitude selector selects detector output signals for transmission to a video monitor. A calibrated measuring grid can be superimposed on the focal spot image on the monitor.
摘要翻译： 针孔照相机在包括增强箔和光敏检测器矩阵的辐射电传感器上形成X射线管的光焦点的图像。 包括可调幅度选择器的处理电路选择检测器输出信号以传输到视频监视器。 校准的测量网格可以叠加在监视器上的焦点图像上。
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