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公开(公告)号：US20120128125A1
公开(公告)日：2012-05-24
申请号：US12953274
申请日：2010-11-23
IPC分类号： G01N23/04
摘要： A radiography system allow for user determination of a region of interest on a subject prior to X-ray exposure. The region of interest is defined by user interaction with an image, a pointer system, or the like. The region of interest is then translated to the imaging coordinate system, such as in the plane of a digital detector. The region is then used for exposure control during an imaging sequence, either in an open or closed-loop manner.
摘要翻译： 射线照相系统允许用户在X射线曝光之前确定受试者的感兴趣区域。 感兴趣的区域由用户与图像，指针系统等的交互来定义。 感兴趣区域然后被转换成成像坐标系，例如在数字检测器的平面中。 然后该区域在成像序列期间以开放或闭环方式用于曝光控制。
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公开(公告)号：US08705695B2
公开(公告)日：2014-04-22
申请号：US12953274
申请日：2010-11-23
IPC分类号： G01N23/04
摘要： A radiography system allow for user determination of a region of interest on a subject prior to X-ray exposure. The region of interest is defined by user interaction with an image, a pointer system, or the like. The region of interest is then translated to the imaging coordinate system, such as in the plane of a digital detector. The region is then used for exposure control during an imaging sequence, either in an open or closed-loop manner.
摘要翻译： 射线照相系统允许用户在X射线曝光之前确定受试者的感兴趣区域。 感兴趣的区域由用户与图像，指针系统等的交互来定义。 感兴趣区域然后被转换成成像坐标系，例如在数字检测器的平面中。 然后该区域在成像序列期间以开放或闭环方式用于曝光控制。
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3.发明授权Method of manufacturing, and a collimator mandrel having variable attenuation characteristics for a CT system 有权具有可变衰减特性的CT系统的制造方法和准直器心轴公开(公告)号：US07436933B2
公开(公告)日：2008-10-14
申请号：US11836337
申请日：2007-08-09
申请人： Rowland Saunders , Steven G. Ross , Thomas L. Toth
发明人： Rowland Saunders , Steven G. Ross , Thomas L. Toth
IPC分类号： G21K1/02
摘要： A method of manufacturing a collimator mandrel having variable attenuation characteristics is presented. The manufacturing process includes the placement of a layer of attenuating material on a core of base material. The layer of attenuating material is relatively thin and varies in thickness circumferentially around the core. The collimator mandrel may be manufactured by placing a cast about a core of non-attenuating material, filling a void between the cast and the core with an attenuating material, allowing the material to cure, and removing the cast from the assembly.
摘要翻译： 提出了一种制造具有可变衰减特性的准直器心轴的方法。 制造工艺包括将一层衰减材料放置在基材的芯上。 衰减材料层相对较薄并且在芯周向周向地变化。 可以通过将铸件围绕非衰减材料的芯放置在铸件和芯之间的空隙中，并用衰减材料来制造准直器心轴，从而允许材料固化，以及从组件移除铸件。
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公开(公告)号：US20060120506A1
公开(公告)日：2006-06-08
申请号：US11339067
申请日：2006-01-25
申请人： Baojun Li , Rowland Saunders , John Sandrik , Xianfeng Ni
发明人： Baojun Li , Rowland Saunders , John Sandrik , Xianfeng Ni
CPC分类号： A61B6/583 , A61B6/025 , G06T11/005 , G06T2211/436
摘要： The present invention provides a method and apparatus for tomosynthesis image quality control for a tomosynthesis imaging system, the method and apparatus addressing the measurement of in-plane resolution and slice thickness, via the measurement of modulation transfer function (MTF), the method and apparatus including: positioning a phantom having an edge of predetermined sharpness at a predetermined angle relative to an imaging plane of an x-ray detector; performing tomosynthesis acquisition and generating one or more slice images using one or more three-dimensional reconstruction algorithms; selecting a slice image to be measured from the one or more slice images; identifying a sharpest edge in the slice image to be measured, wherein the sharpest edge in the slice image to be measured includes the in-focus portion of the phantom; inputting the slice image to be measured and coordinates of the sharpest edge in the slice image to be measured into an MTF algorithm; and, using the MTF algorithm, calculating the in-plane resolution and slice thickness of the slice image to be measured.
摘要翻译： 本发明提供了通过调制传递函数（MTF）的测量，方法和装置，用于层析合成成像系统的层析合成图像质量控制的方法和装置，该方法和装置解决了平面内分辨率和切片厚度的测量。 包括：相对于X射线检测器的成像平面将具有预定锐度的边缘的假想物以预定角度定位; 执行层析合成获取并使用一个或多个三维重建算法生成一个或多个切片图像; 从所述一个或多个切片图像中选择要测量的切片图像; 识别要测量的切片图像中的最锐边，其中要测量的切片图像中的最锐边包括体模的对焦部分; 将要测量的切片图像和要测量的切片图像中最锐边的坐标输入到MTF算法中; 并使用MTF算法计算要测量的切片图像的面内分辨率和切片厚度。
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5.发明申请System and method for cross table tomosynthesis imaging for trauma applications 有权用于创伤应用的交叉台层合成成像系统和方法公开(公告)号：US20070110212A1
公开(公告)日：2007-05-17
申请号：US11280151
申请日：2005-11-16
申请人： Baojun Li , Renuka Uppaluri , Carson Thomas , Gerald Schulte , Gopal Avinash , Rowland Saunders , Tammy Merisotis
发明人： Baojun Li , Renuka Uppaluri , Carson Thomas , Gerald Schulte , Gopal Avinash , Rowland Saunders , Tammy Merisotis
CPC分类号： A61B6/025 , A61B6/4291 , G01N23/044 , G01N2223/419 , G01N2223/612
摘要： The presently described technology provides a tomosynthesis imaging system that comprises an x-ray tube and an anti-scatter grid. The x-ray tube is configured to emit x-rays from a plurality of positions during movement of the x-ray tube along a long axis of a mobile patient surface. The anti-scatter grid is configured to filter out scattered x-rays and includes a grid line parallel to the long axis of the mobile patient surface. The x-rays emitted from the plurality of positions are reconstructed into at least one image of at least one plane of a patient anatomy. The described technology is useful in emergency or trauma applications where a patient may be quickly and easily moved on a mobile patient surface to a position near an x-ray detector used in combination with the x-ray tube and anti-scatter grid.
摘要翻译： 目前描述的技术提供了一种包含X射线管和防散射栅格的断层融合成像系统。 X射线管被配置为在X射线管沿着移动患者表面的长轴移动期间从多个位置发射X射线。 防散射网格被配置为过滤散射的X射线，并且包括平行于移动患者表面的长轴的网格线。 从多个位置发射的x射线被重建成患者解剖结构的至少一个平面的至少一个图像。 所描述的技术在紧急或创伤应用中是有用的，其中患者可以快速且容易地在移动患者表面上移动到与x射线管和防散射网格组合使用的x射线检测器附近的位置。
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6.发明授权Method of manufacturing, and a collimator mandrel having variable attenuation characteristics for a CT system 有权具有可变衰减特性的CT系统的制造方法和准直器心轴公开(公告)号：US07031434B1
公开(公告)日：2006-04-18
申请号：US10604634
申请日：2003-08-06
申请人： Rowland Saunders , Steven Ross , Thomas Toth
发明人： Rowland Saunders , Steven Ross , Thomas Toth
IPC分类号： G21K5/04
摘要： A method of manufacturing a collimator mandrel having variable attenuation characteristics is presented. The manufacturing process includes the placement of a layer of attenuating material on a core of base material. The layer of attenuating material is relatively thin and varies in thickness circumferentially around the core. The collimator mandrel may be manufactured by placing a cast about a core of non-attenuating material, filling a void between the cast and the core with an attenuating material, allowing the material to cure, and removing the cast from the assembly.
摘要翻译： 提出了一种制造具有可变衰减特性的准直器心轴的方法。 制造工艺包括将一层衰减材料放置在基材的芯上。 衰减材料层相对较薄并且在芯周向周向地变化。 可以通过将铸件围绕非衰减材料的芯放置在铸件和芯之间的空隙中，并用衰减材料来制造准直器心轴，从而允许材料固化，以及从组件移除铸件。
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7.发明申请公开(公告)号：US20080019484A1
公开(公告)日：2008-01-24
申请号：US11836337
申请日：2007-08-09
申请人： Rowland Saunders , Steven Ross , Thomas Toth
发明人： Rowland Saunders , Steven Ross , Thomas Toth
IPC分类号： G21K1/04
摘要： A method of manufacturing a collimator mandrel having variable attenuation characteristics is presented. The manufacturing process includes the placement of a layer of attenuating material on a core of base material. The layer of attenuating material is relatively thin and varies in thickness circumferentially around the core. The collimator mandrel may be manufactured by placing a cast about a core of non-attenuating material, filling a void between the cast and the core with an attenuating material, allowing the material to cure, and removing the cast from the assembly.
摘要翻译： 提出了一种制造具有可变衰减特性的准直器心轴的方法。 制造工艺包括将一层衰减材料放置在基材的芯上。 衰减材料层相对较薄并且在芯周向周向地变化。 可以通过将铸件围绕非衰减材料的芯放置在铸件和芯之间的空隙中，并用衰减材料来制造准直器心轴，从而允许材料固化，以及从组件移除铸件。
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公开(公告)号：US07286631B2
公开(公告)日：2007-10-23
申请号：US11339067
申请日：2006-01-25
申请人： Baojun Li , Rowland Saunders , John Sandrik , Xianfeng Ni
发明人： Baojun Li , Rowland Saunders , John Sandrik , Xianfeng Ni
IPC分类号： A61B6/00
CPC分类号： A61B6/583 , A61B6/025 , G06T11/005 , G06T2211/436
摘要： A method and apparatus for tomosynthesis image quality control for a tomosynthesis imaging system. The method and apparatus including: positioning a phantom having an edge of predetermined sharpness at a predetermined angle relative to an imaging plane of an x-ray detector; performing tomosynthesis acquisition and generating one or more slice images using one or more three-dimensional reconstruction algorithms; selecting a slice image to be measured from the one or more slice images; identifying a sharpest edge in the slice image to be measured, wherein the sharpest edge in the slice image to be measured includes the in-focus portion of the phantom; inputting the slice image to be measured and coordinates of the sharpest edge in the slice image to be measured into a modulation transfer function (MTF) algorithm; and, using the MTF algorithm, calculating the in-plane resolution and slice thickness of the slice image to be measured.
摘要翻译： 一种用于断层合成成像系统的层析合成图像质量控制的方法和装置。 所述方法和装置包括：相对于X射线检测器的成像平面将具有预定锐度的边缘的假想物体以预定角度定位; 执行层析合成获取并使用一个或多个三维重建算法生成一个或多个切片图像; 从所述一个或多个切片图像中选择要测量的切片图像; 识别要测量的切片图像中的最锐边，其中要测量的切片图像中的最锐边包括体模的对焦部分; 将要测量的切片图像和要测量的切片图像中最锐边的坐标输入调制传递函数（MTF）算法; 并使用MTF算法计算要测量的切片图像的面内分辨率和切片厚度。
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9.发明授权Method of manufacturing a collimator mandrel having variable attenuation characteristics for a CT system 有权制造具有可变衰减特性的CT系统的准直器心轴的方法公开(公告)号：US07266180B1
公开(公告)日：2007-09-04
申请号：US11276034
申请日：2006-02-10
申请人： Rowland Saunders , Steven Ross , Thomas L. Toth
发明人： Rowland Saunders , Steven Ross , Thomas L. Toth
IPC分类号： G21K1/02
摘要： A method of manufacturing a collimator mandrel having variable attenuation characteristics is presented. The manufacturing process includes the placement of a layer of attenuating material on a core of base material. The layer of attenuating material is relatively thin and varies in thickness circumferentially around the core. The collimator mandrel may be manufactured by placing a cast about a core of non-attenuating material, filling a void between the cast and the core with an attenuating material, allowing the material to cure, and removing the cast from the assembly.
摘要翻译： 提出了一种制造具有可变衰减特性的准直器心轴的方法。 制造工艺包括将一层衰减材料放置在基材的芯上。 衰减材料层相对较薄并且在芯周向周向地变化。 可以通过将铸件围绕非衰减材料的芯放置在铸件和芯之间的空隙中，并用衰减材料来制造准直器心轴，从而允许材料固化，以及从组件移除铸件。
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公开(公告)号：US08690426B2
公开(公告)日：2014-04-08
申请号：US12815148
申请日：2010-06-14
摘要： A method of fabricating a portable x-ray detector includes coupling a gravity sensor to the portable x-ray detector and coupling a processor to the gravity sensor. The processor is programmed to receive an input from the gravity sensor, determine a physical orientation of the portable x-ray detector based on the received input, and generate an indication to reposition the portable x-ray detector. A portable detector and an imaging system including the portable detector are also provided.
摘要翻译： 制造便携式x射线检测器的方法包括将重力传感器耦合到便携式x射线检测器并将处理器耦合到重力传感器。 处理器被编程为接收来自重力传感器的输入，基于接收到的输入确定便携式x射线检测器的物理取向，并产生重新定位便携式x射线检测器的指示。 还提供了便携式检测器和包括便携式检测器的成像系统。
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