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1. 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。

2. 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。

3. 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。

4. 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。

5. 外观设计

USD475979S1 Gantry control panel 失效
标题翻译：龙门架控制面板
公开(公告)号：USD475979S1
公开(公告)日：2003-06-17
申请号：US29150978
申请日：2001-10-23
申请人： Richard A. Valiga , Fazle Ali , Holly A. McDaniel
设计人： Richard A. Valiga , Fazle Ali , Holly A. McDaniel

6. 发明授权

US06522713B1 In-room start scan sequence control and method of imaging using same 失效
标题翻译：室内启动扫描序列控制和使用其成像的方法
公开(公告)号：US06522713B1
公开(公告)日：2003-02-18
申请号：US09682415
申请日：2001-08-30
申请人： Richard A. Valiga , Fazle Ali , Holly A. McDaniel
发明人： Richard A. Valiga , Fazle Ali , Holly A. McDaniel
IPC分类号： G01N2300
CPC分类号： A61B6/467 , A61B6/032 , A61B6/0457 , A61B6/469
摘要： An apparatus and method that allows an operator to initiate a prep delay sequence from an area adjacent a patient table are provided for use with x-ray emitting scanners. An operator is allowed to maintain continued focus on a patient to be scanned and closely monitor the patient during the injection sequence. Overall scan time is reduced by decreasing the number of times the operator must travel between the operator console and the patient table. Risk to prolonged radiation exposure is thereby reduced. Ultimately, the present invention allows for better quality patient care, faster scan times and overall increased throughput, reduced repetitive tasks for the operators, reduced risk of x-ray exposure to operators, and, in some circumstances, eliminating the need for multiple operators.
摘要翻译：提供了一种允许操作者从邻近患者台的区域发起准备延迟序列的装置和方法，用于与x射线发射扫描仪一起使用。允许操作人员持续关注要扫描的患者，并在注射顺序期间密切监测患者。通过减少操作者必须在操作员控制台和患者台之间行进的次数来减少整体扫描时间。从而减少长时间辐射暴露的风险。最终，本发明允许更好的质量的患者护理，更快的扫描时间和总体增加的吞吐量，减少操作者的重复任务，减少x射线暴露于操作者的风险，并且在某些情况下，消除对多个操作者的需要。

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