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1. 发明授权

US06198791B1 Scalable multislice imaging system 有权
标题翻译：可扩展多层成像系统
公开(公告)号：US06198791B1
公开(公告)日：2001-03-06
申请号：US09140289
申请日：1998-08-25
申请人： Hui David He , Hui Hu , Robert F. Senzig , Gary R. Strong , Guy M. Besson , David M. Hoffman , George E. Seidenschnur , Armin H. Pfoh , Jonathan A. Murray , Thomas L. Toth , Willi W. Hampel
发明人： Hui David He , Hui Hu , Robert F. Senzig , Gary R. Strong , Guy M. Besson , David M. Hoffman , George E. Seidenschnur , Armin H. Pfoh , Jonathan A. Murray , Thomas L. Toth , Willi W. Hampel
IPC分类号： A61B600
CPC分类号： A61B6/032 , A61B6/027 , A61B6/4085
摘要： The present invention is, in one aspect, an imaging system having a detector that has multiple detector cells extending along a z-axis, the detector being configured to collect multiple slices of data; and a scalable data acquisition system configured to convert signals from the detector to digital form, the scalable data acquisition system having a plurality of converter boards each with a plurality of channels, the channels and detector cells having an interweaved coupling to reduce susceptibility to band artifact.
摘要翻译：本发明在一个方面是一种具有检测器的成像系统，所述检测器具有沿z轴延伸的多个检测器单元，所述检测器被配置为收集多个数据片段; 以及可配置成将来自检测器的信号转换成数字形式的可伸缩数据采集系统，所述可伸缩数据采集系统具有多个转换器板，每个转换器板具有多个通道，所述通道和检测器单元具有交织耦合以减少对带状伪影的敏感性。

2. 发明授权

US06285741B1 Methods and apparatus for automatic image noise reduction 有权
标题翻译：自动降噪图像的方法和装置
公开(公告)号：US06285741B1
公开(公告)日：2001-09-04
申请号：US09140105
申请日：1998-08-25
申请人： Sholom M. Ackelsberg , Gary R. Strong , Holly A. McDaniel , Carlos F. Guerra , Hui Hu , Hui David He , Robert Senzig
发明人： Sholom M. Ackelsberg , Gary R. Strong , Holly A. McDaniel , Carlos F. Guerra , Hui Hu , Hui David He , Robert Senzig
IPC分类号： A61B600
CPC分类号： H05G1/34 , A61B6/032
摘要： The present invention, in one form, is a system which, in one embodiment, adjusts the x-ray source current to reduce image noise to better accommodate different scanning parameters. Specifically, in one embodiment, the x-ray source current is adjusted as a function of image slice thickness, scan rotation time, collimation mode, table speed, scan mode, and filtration mode. Particularly, a function is stored in a CT system computer to determine an x-ray source current adjustment factor so that the appropriate x-ray source current is supplied to the x-ray source for the determined parameters. After adjusting the x-ray source current, an object is scanned.
摘要翻译：本发明以一种形式是在一个实施例中调整x射线源电流以减少图像噪声以更好地适应不同扫描参数的系统。具体地，在一个实施例中，根据图像切片厚度，扫描旋转时间，准直模式，表速度，扫描模式和过滤模式来调整x射线源电流。特别地，功能被存储在CT系统计算机中以确定x射线源电流调整因子，使得适当的x射线源电流被提供给所确定的参数的x射线源。调整x射线源电流后，扫描物体。

3. 发明授权

US06404841B1 Image thickness selection for multislice imaging system 失效
标题翻译：多层成像系统的图像厚度选择
公开(公告)号：US06404841B1
公开(公告)日：2002-06-11
申请号：US09473676
申请日：1999-12-29
申请人： Carl Pforr , Hui David He , Sholom M. Ackelsberg , Xiangfeng Ni , Chalapathy V. Dhanwada , Carlos F. Guerra , Holly A. McDaniel , Gary R. Strong
发明人： Carl Pforr , Hui David He , Sholom M. Ackelsberg , Xiangfeng Ni , Chalapathy V. Dhanwada , Carlos F. Guerra , Holly A. McDaniel , Gary R. Strong
IPC分类号： A61B600
CPC分类号： A61B6/032 , A61B6/027 , A61B6/4085
摘要： Scalable multislice systems which, in one embodiment, includes a scalable multislice detector, a scalable data acquisition system (SDAS), scalable scan management, control, and image reconstruction processes, and a user interface, are described. More specifically, the user interface is implemented in a host computer for defining the configuration of the imaging system. Particularly, after selection of each scan parameter, the user interface displays the available scan parameter values for the remaining parameters so that the scan objectives are met. More specifically, after selection of each scan parameter, the user interface updates the remaining scan parameters, including prospective and retrospective image thicknesses.
摘要翻译：在一个实施例中，可扩展多层系统包括可扩展多层检测器，可伸缩数据采集系统（SDAS），可伸缩扫描管理，控制和图像重建处理以及用户界面。更具体地，在主计算机中实现用户界面以定义成像系统的配置。特别地，在选择每个扫描参数之后，用户界面显示剩余参数的可用扫描参数值，以便满足扫描目标。更具体地，在选择每个扫描参数之后，用户界面更新剩余的扫描参数，包括预期和回顾图像厚度。

4. 发明授权

US06275562B1 Apparatus and methods for performing scalable multislice computed tomography scan 有权
标题翻译：用于执行可扩展多层计算机断层摄影扫描的装置和方法
公开(公告)号：US06275562B1
公开(公告)日：2001-08-14
申请号：US09193586
申请日：1998-11-17
申请人： H. David He , Hui Hu , Holly A. McDaniel , Gary R. Strong
发明人： H. David He , Hui Hu , Holly A. McDaniel , Gary R. Strong
IPC分类号： A61B600
CPC分类号： A61B6/035 , A61B6/027 , A61B6/032 , A61B6/4476
摘要： A scalable multislice system which, in one embodiment, includes a scalable multi-slice detector, a scalable data acquisition system (SDAS), scalable scan management, control, and image reconstruction processes, and scalable image display and analysis, is described. In the axial multi-slice scan mode, multiple rows of scan data can be processed before image reconstruction, and the data can be used to produce either multiple thin slices or a reduced number of thicker slices with reduced image artifact. In addition, images with thicker slice thicknesses can be later reconstructed retrospectively into thinner slices of images based on clinical diagnosis needs. As a result, the number of unwanted images for viewing, filming, and archiving is reduced. In addition, high z-axis resolution images can be later reconstructed for patient diagnosis. In the helical multi-slice scan mode, multiple combinations of patient table speed and x-ray beam and detector collimations, enable generation of images having different z-axis resolution can be produced. For example, at the table speed of 30 mm/rotation, images of 5-10 mm slices can be generated. Thicker slice (such as 10 mm) images can be generated prospectively, which provides the benefit of a reduced number of images and reduced image reconstruction time. At a later time, thinner slice images can be generated retrospectively using the same data. Such thinner slice images may be necessary depending on the clinical application needs. Such thinner slice images can be generated without rescanning the patient.
摘要翻译：描述了在一个实施例中包括可扩展多片检测器，可伸缩数据采集系统（SDAS），可扩展扫描管理，控制和图像重建处理以及可缩放图像显示和分析的可扩展多层系统。在轴向多切片扫描模式中，可以在图像重建之前处理多行扫描数据，并且可以使用数据产生多个薄切片或减少数量较薄的具有减少图像伪影的较厚切片。此外，根据临床诊断需要，可以随后将具有较厚切片厚度的图像追溯重建成更薄的图像片段。因此，减少了用于观看，拍摄和归档的不需要的图像的数量。此外，高z轴分辨率图像可以稍后重建用于患者诊断。在螺旋多层扫描模式中，可以产生患者台速度和X射线束和检测器准直的多种组合，使得能够生成具有不同z轴分辨率的图像。例如，在30mm /旋转的台面速度下，可以产生5-10mm切片的图像。可以前瞻性地生成更厚的图像（例如10 mm）图像，这样可以减少图像数量和减少图像重建时间。稍后，可以使用相同的数据追溯生成较薄的切片图像。根据临床应用需要，这样较薄的切片图像可能是必需的。可以在不重新扫描患者的情况下生成这样较薄的切片图像。

5. 发明授权

US5674449A Iron base alloys for internal combustion engine valve seat inserts, and the like 失效
标题翻译：用于内燃机阀座插入件的铁基合金等
公开(公告)号：US5674449A
公开(公告)日：1997-10-07
申请号：US450262
申请日：1995-05-25
申请人： Xuecheng Liang , Gary R. Strong
发明人： Xuecheng Liang , Gary R. Strong
IPC分类号： C22C33/02 , C22C38/24 , C22C38/30 , C22C38/22
CPC分类号： C22C33/0278 , C22C38/24 , C22C38/30
摘要： An iron base alloy having high wear resistance at elevated temperatures with good oxidation resistance contains 1-2.8 wt. % carbon, 3-16 wt. % chromium, 1-8 wt. % vanadium, 0.5-5 wt. % niobium, up to 14 wt. % molybdenum and up to 14 wt. % tungsten, the molybdenum and tungsten combined comprising 6-14 wt. % of the alloy.
摘要翻译：在具有良好抗氧化性的高温下具有高耐磨性的铁基合金含有1-2.8wt。％碳，3-16重量％％铬，1-8wt。％钒，0.5-5重量％％铌，最多14wt。％钼和至多14重量％％钨，组合的钼和钨包含6-14重量％％的合金。

6. 发明授权

US06866816B2 Wear and corrosion resistant austenitic iron base alloy 有权
标题翻译：耐磨和耐腐蚀奥氏体铁基合金
公开(公告)号：US06866816B2
公开(公告)日：2005-03-15
申请号：US10639713
申请日：2003-08-12
申请人： Xuecheng Liang , Gary R. Strong
发明人： Xuecheng Liang , Gary R. Strong
IPC分类号： C22C30/00 , C22C33/02 , C22C37/08 , C22C38/06 , C22C38/34 , C22C38/42 , C22C38/44 , C22C38/46 , C22C38/48 , C22C38/50 , C22C38/56 , C22C38/58
CPC分类号： C22C38/58 , C22C33/0285 , C22C38/04 , C22C38/06 , C22C38/34 , C22C38/42 , C22C38/44 , C22C38/46 , C22C38/48 , C22C38/50 , C22C38/56 , F01L3/02 , F01L3/04 , F01L2101/00 , F01L2103/00
摘要： A unique austenitic iron base alloy for wear and corrosion resistant applications, characterized by its excellent sulfuric acid corrosion resistance and good sliding wear resistance, is useful for valve seat insert applications when corrosion resistance is required. The alloy comprises 0.7-2.4 wt % carbon, 1.5-4 wt % silicon, 3-9 wt % chromium, less than 6 wt % manganese, 5-20 wt % molybdenum and tungsten combined, with the tungsten comprising not more than ⅓ of the total, 0-4 wt % niobium and vanadium combined, 0-1.5 wt % titanium, 0.01-0.5 wt % aluminum, 12-25 wt % nickel, 0-3 wt % copper, and at least 45 wt % iron.
摘要翻译：用于耐磨和耐腐蚀应用的独特的奥氏体铁基合金，其特征在于其优异的耐硫酸腐蚀性和良好的滑动耐磨性，对于需要耐腐蚀性的阀座插入应用是有用的。合金包含0.7-2.4重量％的碳，1.5-4重量％的硅，3-9重量％的铬，小于6重量％的锰，5-20重量％的钼和钨的组合，其中钨不超过1 / 总计3重量％，合并铌和钒0-4重量％，0-1.5重量％钛，0.01-0.5重量％铝，12-25重量％镍，0-3重量％铜和至少45重量％的铁。

7. 发明授权

US06485678B1 Wear-resistant iron base alloys 有权
标题翻译：耐磨铁基合金
公开(公告)号：US06485678B1
公开(公告)日：2002-11-26
申请号：US09596964
申请日：2000-06-20
申请人： Xuecheng Liang , Gary R. Strong
发明人： Xuecheng Liang , Gary R. Strong
IPC分类号： C22C3822
CPC分类号： F01L3/02 , B22F2998/00 , B23K35/3093 , C22C33/0285 , C22C38/22 , C22C38/30 , C22C38/34 , C22C38/44 , C22C38/52 , C23C30/00 , F01L3/04 , F01L2101/00 , F01L2103/00 , C22C33/0278
摘要： A unique iron base alloy for wear resistant applications, characterized in one aspect by its hardening ability when exposed to a certain temperature range, is useful for valve seat insert applications. The alloy also possesses excellent wear resistance, hot hardness and oxidation resistance. The alloy comprises less than 0.1 wt % carbon; about 18 to about 32 wt % molybdenum, about 6 to about 15 wt % chromium, about 1.5 to about 3% silicon, about 8 to about 15 wt % cobalt and at least 40% iron, with less than 0.5 wt % nickel. In another aspect, for lower temperature applications, the cobalt is optional, the nickel content can be up to 14 wt %, but the molybdenum must be in the range of about 29% to about 36%. In one further aspect, for higher temperature applications, the cobalt is optional, but may be used up to 15 wt %, nickel must be used at a level of between about 3 and about 14 wt %, and the molybdenum will be in the range of about 26 to about 36 wt %.
摘要翻译：用于耐磨应用的独特的铁基合金，其特征在于一个方面当其暴露于一定温度范围时的硬化能力，对于阀座插入应用是有用的。该合金还具有优异的耐磨性，耐热硬度和抗氧化性。该合金包含小于0.1重量％的碳; 约18至约32wt％的钼，约6至约15wt％的铬，约1.5至约3％的硅，约8至约15wt％的钴和至少40％的铁，以及小于0.5wt％的镍。另一方面，对于较低温度的应用，钴是任选的，镍含量可高达14重量％，但钼必须在约29％至约36％的范围内。另一方面，对于较高温度的应用，钴是任选的，但最多可使用15wt％，镍必须以约3至约14wt％的量使用，并且钼将在约26至约36重量％。

8. 发明授权

US06200688B1 Nickel-iron base wear resistant alloy 失效
标题翻译：镍铁基耐磨合金
公开(公告)号：US06200688B1
公开(公告)日：2001-03-13
申请号：US09062799
申请日：1998-04-20
申请人： Xuecheng Liang , Gary R. Strong
发明人： Xuecheng Liang , Gary R. Strong
IPC分类号： C22C1905
CPC分类号： C22C19/056 , B22F2998/00 , C22C19/055 , C22C30/00 , C22C37/08 , C22C38/02 , C22C38/44 , F01L3/02 , Y10T428/12 , C22C1/04 , C22C32/0052
摘要： A wear resistant alloy is provided having a composition by weight of 1.0-2.5 C, 1.5-4.5 Si, 8.0-20.0 Cr, 9.0-20.0 W and/or Mo, 0.5-2.0 Nb, 20.0-40.0 Fe, and the balance being Ni (>25.0). This alloy provides excellent wear resistance and good hot hardness with relatively low cost compared to prior art nickel base alloys. The alloy has particular use as a valve seat insert materials in diesel fuel internal combustion engines.
摘要翻译：提供耐磨合金，其重量为1.0-2.5℃，1.5-4.5Si，8.0-20.0Cr，9.0-20.0W和/或Mo，0.5-2.0Nb，20.0-40.0Fe，余量为 Ni（> 25.0）。与现有技术的镍基合金相比，该合金具有优异的耐磨性和良好的热硬度，成本相对较低。该合金特别用作柴油机内燃机中的阀座插入材料。

9. 发明授权

US06061420A Methods and apparatus for graphical Rx in a multislice imaging system 有权
标题翻译：用于多层成像系统中图形化Rx的方法和装置
公开(公告)号：US06061420A
公开(公告)日：2000-05-09
申请号：US139990
申请日：1998-08-25
申请人： Gary R. Strong , Bob L. Beckett , Holly A. McDaniel , Kathryn M. Littlejohn , Steven M. Zanoni
发明人： Gary R. Strong , Bob L. Beckett , Holly A. McDaniel , Kathryn M. Littlejohn , Steven M. Zanoni
IPC分类号： G06T11/00 , A61B6/00
CPC分类号： A61B6/488 , A61B6/469 , G06T11/005 , A61B6/027 , A61B6/467 , Y10S378/901
摘要： Methods and apparatus for a multislice graphic Rx display which, in one embodiment, determines a true image location in the Z axis, selects a the correct scan data for image generation, and if a scan is initiated via the GUI or via graphic Rx, determines the affect on the ISO center and DFOV, are described. More particularly, the system determines the offset from the scan plane for each image plane, so that the true image location in Z is displayed. The image offset from the scan plane is a function of the detector row thickness, the number of detector rows, the scan pitch (helical scanning only), the image thickness, and the gantry tilt angle. Further, the image thickness is selected by the user via the GUI, and constrains the image interval which is displayed on the graphic Rx display. Based on image thickness and image interval, the correct scan data is selected so that images are generated at locations exactly matching those shown on the graphic Rx display. Also, if a scan is prescribed either via the GUI or graphic Rx display, the affect on ISO center and DFOV is determined. This information is automatically updated on the graphic Rx display by modifying the cut-line position up/down to show ISO affect and by modifying the cut-line length to show DFOV.
摘要翻译：用于多层图形Rx显示器的方法和装置，其在一个实施例中确定Z轴中的真实图像位置，选择用于图像生成的正确扫描数据，并且如果经由GUI或经由图形Rx启动扫描，则确定描述了对ISO中心和DFOV的影响。更具体地，系统确定针对每个图像平面的从扫描平面的偏移，使得显示Z中的真实图像位置。从扫描平面偏移的图像是检测器行厚度，检测器行数，扫描间距（仅螺旋扫描），图像厚度和台架倾斜角的函数。此外，用户经由GUI选择图像厚度，并且限制在图形Rx显示器上显示的图像间隔。基于图像厚度和图像间隔，选择正确的扫描数据，以便在与图形Rx显示屏上显示的位置完全匹配的位置生成图像。此外，如果通过GUI或图形Rx显示来规定扫描，则确定对ISO中心和DFOV的影响。通过修改剪切线位置上/下以显示ISO影响并通过修改剪切线长度显示DFOV，可以在图形Rx显示屏上自动更新该信息。

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