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1. 发明申请

WO2018132284A1 SYSTEMS, METHODS, AND DEVICES FOR MULTI-ENERGY X-RAY IMAGING 审中-公开
公开(公告)号：WO2018132284A1
公开(公告)日：2018-07-19
申请号：PCT/US2018/012194
申请日：2018-01-03
申请人： VARIAN MEDICAL SYSTEMS, INC.
发明人： GANGULY, Arundhuti , VIRSHUP, Gary, F. , RICHMOND, Michael , JONES, Billy, Dan
IPC分类号： A61B6/00 , A61B6/02 , A61B5/00 , H05G1/58 , H05G1/10
摘要： A system can have an x-ray source that generates a series of individual x-ray pulses for multi-energy imaging. A first x-ray pulse can have a first energy level and a subsequent second x-ray pulse in the series can have a second energy level different from the first energy level. An x-ray imager can receive the x-rays from the x-ray source and can detect the received x-rays for image generation. A generator interface box (GIB) controls the x-ray source to provide the series of individual x-ray pulses and synchronizes detection by the x-ray imager with generation of the individual x-ray pulses. The GIB can control x-ray pulse generation and synchronization to optimize image generation while minimizing unnecessary x-ray irradiation.

2. 发明申请

WO2017014761A1 OPERATIONAL STATE DETERMINATION FOR X-RAY TUBES 审中-公开
标题翻译： X射线管的运行状态确定
公开(公告)号：WO2017014761A1
公开(公告)日：2017-01-26
申请号：PCT/US2015/041408
申请日：2015-07-21
申请人： VARIAN MEDICAL SYSTEMS, INC.
发明人： JONES, Billy, Dan , VIRSHUP, Gary, F. , RICHMOND, Michelle
IPC分类号： H05G1/34
CPC分类号： H05G1/34 , H01J35/101 , H05G1/56 , H05G1/58
摘要： An example embodiment includes an x-ray assembly. The x-ray assembly includes an x-ray tube (208), a filament (204), and a sensor (262, 264). The x-ray tube defines an evacuated envelope (210). The filament is positioned within the evacuated envelope. The filament includes a standby operational state in which the filament is not emitting electrons (216), an exposure operational state in which the filament is emitting electrons, and a preheat operational state during which the filament transitions from the standby operational state to the exposure operational state. The sensor may be a photosensor (242) or a magnetic sensor (264) and is configured to measure a characteristic of the filament that is indicative of an operational state of the filament.
摘要翻译：示例性实施例包括X射线组件。 X射线组件包括X射线管（208），细丝（204）和传感器（262,264）。 X射线管限定了真空的外壳（210）。灯丝定位在抽真空的外壳内。灯丝包括其中灯丝不发射电子（216）的待机操作状态，灯丝发射电子的曝光操作状态以及灯丝从待机操作状态转变到曝光操作的预热操作状态州。传感器可以是光电传感器（242）或磁传感器（264），并且被配置为测量指示灯丝的操作状态的灯丝的特性。

3. 发明申请

WO2016176217A1 REDUCING HEEL EFFECT IN DUAL ENERGY X-RAY IMAGES 审中-公开
标题翻译：在双能量X射线图像中降低HEEL效应
公开(公告)号：WO2016176217A1
公开(公告)日：2016-11-03
申请号：PCT/US2016/029386
申请日：2016-04-26
申请人： VARIAN MEDICAL SYSTEMS, INC.
发明人： VIRSHUP, Gary, F. , GANGULY, Arundhuti
IPC分类号： A61B6/00
CPC分类号： G06T5/50 , A61B6/482 , A61B6/5258 , G01N23/087 , G06T5/009 , G06T2207/10116 , G06T2207/20021 , G06T2207/20208 , G06T2207/20221
摘要： In some examples, a method to reduce heel effect distortion in dual energy x-ray images includes receiving flood field images generated by x-rays at different energy levels and generating one or more normalize images based on the flood field images. The method may also include applying the one or more normalize images to one or more x-ray images and combining the x-ray images to generate a dual energy x-ray image with reduced heel effect distortion.
摘要翻译：在一些示例中，减少双能X射线图像中的脚跟效应失真的方法包括：接收由不同能量级别的x射线产生的洪水场图像，并且基于洪水场图像生成一个或多个归一化图像。该方法还可以包括将一个或多个归一化图像应用于一个或多个X射线图像并组合x射线图像以产生具有减少的脚跟效应失真的双能量X射线图像。

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