公开(公告)号：US20060239412A1

公开(公告)日：2006-10-26

申请号：US11405443

申请日：2006-04-18

申请人： Rudolf Jakob ,  Thomas Schmitt ,  Martin Spahn

发明人： Rudolf Jakob ,  Thomas Schmitt ,  Martin Spahn

IPC分类号： H01J31/50

CPC分类号： A61B6/032 ,  A61B6/4233 ,  A61B6/4283 ,  A61B6/4405 ,  G21K4/00 ,  G21K2004/02

摘要： A transportable flat X-ray detector includes a housing with a grip and an active surface with a scintillator layer and semiconductor layer including a multiplicity of pixel elements arranged in a matrix. Further, gripping elements such as gripping holes, depressions, pits or gripping troughs are provided in the housing at the edge of the flat X-ray detector, outside the active surface.

摘要翻译： 可移动平板X射线检测器包括具有握柄的壳体和具有闪烁体层的活动表面和包括以矩阵布置的多个像素元件的半导体层。 此外，在平面X射线检测器的边缘处的壳体中，在活动表面的外部设置有诸如夹紧孔，凹陷，凹坑或夹持槽的夹紧元件。

公开(公告)号：US07566169B2

公开(公告)日：2009-07-28

申请号：US11405443

申请日：2006-04-18

申请人： Rudolf Jakob ,  Thomas Schmitt ,  Martin Spahn

发明人： Rudolf Jakob ,  Thomas Schmitt ,  Martin Spahn

IPC分类号： H01J31/50 ,  H05G1/64

CPC分类号： A61B6/032 ,  A61B6/4233 ,  A61B6/4283 ,  A61B6/4405 ,  G21K4/00 ,  G21K2004/02

摘要： A transportable flat X-ray detector includes a housing with a grip and an active surface with a scintillator layer and semiconductor layer including a multiplicity of pixel elements arranged in a matrix. Further, gripping elements such as gripping holes, depressions, pits or gripping troughs are provided in the housing at the edge of the flat X-ray detector, outside the active surface.

摘要翻译： 可移动平板X射线检测器包括具有握柄的壳体和具有闪烁体层的活动表面和包括以矩阵布置的多个像素元件的半导体层。 此外，在平面X射线检测器的边缘处的壳体中，在活动表面的外部设置有诸如夹紧孔，凹陷，凹坑或夹持槽的夹紧元件。

公开(公告)号：US20050056789A1

公开(公告)日：2005-03-17

申请号：US10937260

申请日：2004-09-10

申请人： Martin Spahn ,  Thomas Schmitt

发明人： Martin Spahn ,  Thomas Schmitt

IPC分类号： A61B6/00 ,  G01T1/24 ,  G01T1/29 ,  G03B42/02 ,  H04N5/225 ,  H04N5/32 ,  H04N5/321 ,  H04N7/18

CPC分类号： H04N5/321 ,  A61B6/00 ,  A61B6/4233 ,  G03B42/02 ,  H04N5/2253

摘要： An x-ray detector includes a detector plate having a multiplicity of detector elements arranged in the X direction and the Y direction, accommodated in a housing. To increase the robustness, the detector plate is accommodated in the housing in a floating manner by using at least one damping element.

摘要翻译： X射线检测器包括检测器板，其具有沿X方向和Y方向布置的多个检测器元件，容纳在壳体中。 为了增加鲁棒性，检测器板通过使用至少一个阻尼元件以浮动方式容纳在壳体中。

公开(公告)号：US07202481B2

公开(公告)日：2007-04-10

申请号：US10937260

申请日：2004-09-10

申请人： Martin Spahn ,  Thomas Schmitt

发明人： Martin Spahn ,  Thomas Schmitt

IPC分类号： G01T1/24

CPC分类号： H04N5/321 ,  A61B6/00 ,  A61B6/4233 ,  G03B42/02 ,  H04N5/2253

摘要： An x-ray detector includes a detector plate having a multiplicity of detector elements arranged in the X direction and the Y direction, accommodated in a housing. To increase the robustness, the detector plate is accommodated in the housing in a floating manner by using at least one damping element.

摘要翻译： X射线检测器包括检测器板，其具有沿X方向和Y方向布置的多个检测器元件，容纳在壳体中。 为了增加鲁棒性，检测器板通过使用至少一个阻尼元件以浮动方式容纳在壳体中。

公开(公告)号：US09664803B2

公开(公告)日：2017-05-30

申请号：US15219022

申请日：2016-07-25

申请人： Silke Reitz ,  Martin Spahn

发明人： Silke Reitz ,  Martin Spahn

IPC分类号： G01T7/00 ,  G01T1/24

CPC分类号： G01T7/005 ,  G01T1/247

摘要： A method for calibrating a counting digital X-ray detector includes performing a threshold value scan in at least one defined X-ray spectrum for irradiating the X-ray detector, which includes a matrix composed of pixel elements, storing count rates of the pixel elements as a function of respective applied threshold values, and from results of a measurement of count rates of the pixel elements, determining or calculating individual correction threshold values for the individual pixel elements. The individual correction threshold values correct a threshold value that is to be applied to the pixel elements for the defined X-ray spectrum such that threshold value noise is reduced.

公开(公告)号：US20150090893A1

公开(公告)日：2015-04-02

申请号：US14502860

申请日：2014-09-30

申请人： Martin Spahn

发明人： Martin Spahn

IPC分类号： G01T1/29

CPC分类号： G01T1/2928 ,  G01T1/17

摘要： The embodiments relate to a counting digital x-ray detector for recording x-ray images of an object irradiated by x-ray radiation with at least one detector module, which includes a flat direct converter for converting x-ray radiation into an electrical signal and a matrix with a plurality of counting pixel elements, wherein each counting pixel element includes a charge or signal input, a conversion facility for converting the electrical signal into a count signal, a digital counter for detecting and storing the count signal and a control and readout unit, and wherein the x-ray image detector is embodied such that each pixel element of the x-ray image detector is connected to the corresponding electrodes of the detector material of the direct converter via contacts and in this way is embodied switchably.

摘要翻译： 实施例涉及一种计数数字X射线检测器，用于利用至少一个检测器模块记录由X射线辐射照射的物体的X射线图像，该检测器模块包括用于将x射线辐射转换成电信号的平坦直接转换器， 具有多个计数像素元件的矩阵，其中每个计数像素元件包括电荷或信号输入，用于将电信号转换为计数信号的转换装置，用于检测和存储计数信号的数字计数器以及控制和读出 单元，并且其中所述x射线图像检测器被实施为使得所述x射线图像检测器的每个像素元件经由触点连接到所述直接转换器的检测器材料的相应电极，并且以这种方式可切换地实现。

公开(公告)号：US20140175299A1

公开(公告)日：2014-06-26

申请号：US14138041

申请日：2013-12-21

申请人： Martin Spahn

发明人： Martin Spahn

IPC分类号： G01T1/17

CPC分类号： G01T1/247 ,  G01T1/2928

摘要： A counting digital x-ray detector for recording x-ray images of an object irradiated by x-ray radiation includes a direct x-ray converter for converting x-ray radiation into an electric signal and a matrix with a plurality of counting pixel elements. At least one part of the counting pixel elements has a signal input and two circuits for converting the signal into a count signal. A first circuit of the two circuits is configured to convert the signal entering the respective pixel element directly into a count signal and to count the count signal. A second circuit of the two circuits is configured to convert the signal entering directly into the respective pixel element together with coincident occurring signals of at least one neighboring pixel element into a count signal and to count the count signal. The first circuit and/or the second circuit are able to be activated individually and both together.

摘要翻译： 用于记录由x射线辐射照射的物体的X射线图像的计数数字X射线检测器包括用于将x射线辐射转换为电信号的直接x射线转换器和具有多个计数像素元件的矩阵。 至少一部分计数像素元件具有信号输入和两个用于将该信号转换成计数信号的电路。 两个电路的第一电路被配置为将进入相应像素元件的信号直接转换成计数信号并对计数信号进行计数。 两个电路的第二电路被配置为将直接进入相应像素元件的信号与至少一个相邻像素元件的重合出现信号一起转换为计数信号并对计数信号进行计数。 第一电路和/或第二电路能够单独激活并且两者一起激活。

公开(公告)号：US20110147600A1

公开(公告)日：2011-06-23

申请号：US12972729

申请日：2010-12-20

申请人： Martin Spahn

发明人： Martin Spahn

IPC分类号： G01T1/24

CPC分类号： G01T1/20 ,  G01T1/2935

摘要： For the purposes of particularly high image quality, provision is made for a counting X-ray detector for recording a digital X-ray image from X-ray radiation, with pixel readout units (14) arranged in a matrix for detecting and counting X-ray quanta (17) of the X-ray radiation, comprising a scintillator (10) for converting the X-ray radiation into photons (19) and a photocathode (11) for converting photons (19) into electrons (18), wherein each pixel readout unit (14), which has an anode (13), a discriminator (25), a counter (24) and a switching element (20), is assigned at least one gas electron multiplier (GEM) (12) for electron amplification.

摘要翻译： 为了特别高的图像质量，提供了用于记录来自X射线辐射的数字X射线图像的计数X射线检测器，其中以阵列排列的像素读出单元（14）用于检测和计数X射线， 包括用于将X射线辐射转换成光子（19）的闪烁体（10）和用于将光子（19）转换成电子（18）的光电阴极（11），其中每个X射线量子（17） 具有阳极（13），鉴别器（25），计数器（24）和开关元件（20）的像素读出单元（14）被分配有用于电子的至少一个气体电子倍增器（GEM）（12） 放大。

公开(公告)号：US20110038458A1

公开(公告)日：2011-02-17

申请号：US12854195

申请日：2010-08-11

申请人： Martin Spahn

发明人： Martin Spahn

IPC分类号： H05G1/64

CPC分类号： A61B6/12 ,  A61B6/4458 ,  A61B6/481 ,  A61B6/504 ,  A61B6/588 ,  G06T5/50 ,  G06T2207/10121 ,  G06T2207/20224 ,  G06T2207/30101

摘要： A method for enhanced visualization of objects in interventional angiographic examinations is provided. X-ray images are recorded during the system dose regulation phase with pure anatomy and during the filling phase with the vessels filled with contrast agent. A mask image is produced from both of the images. Native X-ray images are produced during a working or intervention phase with an object, for example a wire, a catheter or a “coil”, moved in the vessel. The images have a matrix-shaped array of pixels. The pure anatomy images are subtracted from the filling images and from the native images for generating a first subtraction image and a second subtraction image respectively. The first and the second subtraction image are processed for generating a vessel image and an object image respectively. The vessel image and the object image are processed for generating a roadmap image which is played back on a monitor.

摘要翻译： 提供了一种用于增强介入性血管造影检查中物体可视化的方法。 X射线图像在系统剂量调节阶段用纯解剖学记录，在填充期间与装有造影剂的血管进行记录。 从两个图像产生掩模图像。 在工作或干预阶段期间产生原生X射线图像，其中物体例如在容器中移动的线，导管或“线圈”。 图像具有矩阵状的像素阵列。 从填充图像和原始图像中减去纯解剖图像，分别产生第一减影图像和第二减影图像。 处理第一和第二减影图像以分别产生血管图像和物体图像。 处理血管图像和物体图像以产生在监视器上重放的路线图像。

公开(公告)号：US20100329516A1

公开(公告)日：2010-12-30

申请号：US12821344

申请日：2010-06-23

申请人： Rudolf Leiblein ,  Martin Spahn

发明人： Rudolf Leiblein ,  Martin Spahn

IPC分类号： G06T7/00

CPC分类号： G06T5/008 ,  A61B6/4458 ,  G06T5/002 ,  G06T5/50 ,  G06T2207/10121 ,  G06T2207/30048

摘要： An interventional roadmap method with optimization of the mask face is proposed. At least two empty images and at least two fill images are recorded in a mask phase A with a matrix-type array of pixels and stored. The empty and fill images are processed such that the gray values of each pixel of the x-ray images from mask phase A are arranged in ascending order. A mask image is computed from the processed empty and fill images such that the smallest gray values are averaged and from which the mask image will be formed. At least one current x-ray image is recorded and subtracted from the mask image to create roadmap images.

摘要翻译： 提出了一种具有掩模面优化的介入路线图方法。 至少两个空图像和至少两个填充图像被记录在具有矩阵型像素阵列并存储的掩模相位A中。 处理空和填充图像，使得来自掩模相位A的X射线图像的每个像素的灰度值按升序排列。 从处理的空和填充图像计算掩模图像，使得最小灰度值被平均，并且将从其形成掩模图像。 记录至少一个当前的X射线图像并从掩模图像中减去以产生路线图图像。