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1. 发明授权

US07457451B2 Systems, methods and apparatus for specialized filtered back-projection reconstruction for digital tomosynthesis 有权
标题翻译：用于数字断层合成的专门滤波反投影重建的系统，方法和装置
公开(公告)号：US07457451B2
公开(公告)日：2008-11-25
申请号：US11950418
申请日：2007-12-04
申请人： Jiang Hsieh , Stephen W. Metz , Gopal B. Avinash , Baojun Li , John Michael Sabol
发明人： Jiang Hsieh , Stephen W. Metz , Gopal B. Avinash , Baojun Li , John Michael Sabol
IPC分类号： G06K9/00 , G01N23/223
CPC分类号： G06T11/005 , G06T2211/424 , G06T2211/436
摘要： Systems, methods and apparatus are provided through which in one aspect, a three-dimensional (3D) image of an object is constructed from a plurality of two-dimensional (2D) images of the object using a specialized filter. In some embodiments, the specialized filter implements a linear ramp function, a windowing function, and/or a polynomial function. In some embodiments, the 3D image is back-projected from the filtered two-dimensional images, yielding a 3D image that has improved visual distinction of overlapping anatomic structures and reduced blurring.
摘要翻译：提供了一种系统，方法和装置，通过该系统，方法和装置，在一个方面，使用专用滤波器从对象的多个二维（2D）图像构建对象的三维（3D）图像。在一些实施例中，专用滤波器实现线性斜坡函数，加窗函数和/或多项式函数。在一些实施例中，3D图像从经过滤的二维图像反投影，产生3D重建解剖结构改善的视觉区别并减少模糊。

2. 发明授权

US07310436B2 Systems, methods and apparatus for specialized filtered back-projection reconstruction for digital tomosynthesis 有权
标题翻译：用于数字断层合成的专门滤波反投影重建的系统，方法和装置
公开(公告)号：US07310436B2
公开(公告)日：2007-12-18
申请号：US10859423
申请日：2004-06-01
申请人： Baojun Li , Steven W. Metz , John Michael Sabol , Gopal B. Avinash , Jiang Hsieh
发明人： Baojun Li , Steven W. Metz , John Michael Sabol , Gopal B. Avinash , Jiang Hsieh
IPC分类号： G06K9/00
CPC分类号： G06T11/005 , G06T2211/424 , G06T2211/436
摘要： Systems, methods and apparatus are provided through which in one aspect, a three-dimensional (3D) image of an object is constructed from a plurality of two-dimensional (2D) images of the object using a specialized filter. The specialized filter implements a linear ramp function, a windowing function, and/or a polynomial function. The 3D image is back-projected from the filtered two-dimensional images, yielding a 3D image that has improved visual distinction of overlapping anatomic structures and reduced blurring.
摘要翻译：提供了一种系统，方法和装置，通过该系统，方法和装置，在一个方面，使用专用滤波器从对象的多个二维（2D）图像构建对象的三维（3D）图像。专用滤波器实现线性斜坡函数，加窗函数和/或多项式函数。 3D图像从经滤波的二维图像中反投影，产生3D图像，其改善了重叠解剖结构的视觉区别并减少了模糊。

3. 发明授权

US06980624B2 Non-uniform view weighting tomosynthesis method and apparatus 有权
公开(公告)号：US06980624B2
公开(公告)日：2005-12-27
申请号：US10723034
申请日：2003-11-26
申请人： Baojun Li , Bernhard Erich Hermann Claus , Gopal B. Avinash , Stephen W. Metz , Jiang Hsieh
发明人： Baojun Li , Bernhard Erich Hermann Claus , Gopal B. Avinash , Stephen W. Metz , Jiang Hsieh
IPC分类号： A61B6/02 , A61B6/03 , G06T11/00
CPC分类号： A61B6/025 , G06F19/00 , G06T11/005 , G06T2211/436
摘要： A technique is provided for non-uniform weighting in back-projection calculations in tomosythesis. The non-uniform weighting may include weighting based on a count map of the number of times pixels of individual slices are traversed by radiation in different projections. Weighting may also include non-uniform functions for contributions of features at different slice level to the sensed X-ray attenuation system response inconsistencies are accounted for by further weighting based upon projection maps which may be created in separate system calibration or configuration routines.

4. 发明授权

US07072435B2 Methods and apparatus for anomaly detection 有权
标题翻译：异常检测方法与装置
公开(公告)号：US07072435B2
公开(公告)日：2006-07-04
申请号：US10766362
申请日：2004-01-28
申请人： Stephen W. Metz , Carson Hale Thomas , Gopal B. Avinash , Jiang Hsieh
发明人： Stephen W. Metz , Carson Hale Thomas , Gopal B. Avinash , Jiang Hsieh
IPC分类号： A61B6/03
CPC分类号： A61B6/032 , A61B6/488 , Y10S378/901
摘要： A method for detecting an anomaly includes performing a computed tomography (CT) scout scan to obtain data, and supplying the obtained data to a radiographic computer aided detection (CAD) algorithm.
摘要翻译：用于检测异常的方法包括执行计算机断层摄影（CT）侦察扫描以获得数据，并将获得的数据提供给射线照相计算机辅助检测（CAD）算法。

5. 发明授权

US07515682B2 Method and system to generate object image slices 有权
标题翻译：生成对象图像切片的方法和系统
公开(公告)号：US07515682B2
公开(公告)日：2009-04-07
申请号：US11345918
申请日：2006-02-02
申请人： Baojun Li , Stephen W. Metz , Jiang Hsieh , Yogesh Srinivas , Xianfeng Ni , Tabb Patz
发明人： Baojun Li , Stephen W. Metz , Jiang Hsieh , Yogesh Srinivas , Xianfeng Ni , Tabb Patz
IPC分类号： A61B6/03
CPC分类号： A61B6/465 , A61B6/025
摘要： A method for creating a variable slice thickness for displaying an imaged object is disclosed. The method includes acquiring a plurality of projection images from a plurality of different projection angles within a defined sweep angle, reconstructing a plurality of object images from the plurality of projection images, each object image having a first slice thickness, and applying a function rule to combine images, whole images or portions thereof or attributes thereof, of the plurality of projection images, of the plurality of object images, or of both, thereby providing for the display of the object utilizing a second slice thickness that varies from the first slice thickness.
摘要翻译：公开了一种用于创建用于显示成像对象的可变切片厚度的方法。该方法包括从定义的扫描角度内的多个不同投影角度获取多个投影图像，从多个投影图像重构多个对象图像，每个对象图像具有第一切片厚度，并将功能规则应用于组合多个投影图像中的多个对象图像或两者的图像，整个图像或其部分或其属性，从而利用从第一切片厚度变化的第二切片厚度来提供对象的显示。

6. 发明授权

US06687329B1 Computer aided acquisition of medical images 有权
标题翻译：计算机辅助获取医学图像
公开(公告)号：US06687329B1
公开(公告)日：2004-02-03
申请号：US10439103
申请日：2003-05-15
申请人： Jiang Hsieh , Gopal B. Avinash , Cherik Bulkes , John M. Sabol
发明人： Jiang Hsieh , Gopal B. Avinash , Cherik Bulkes , John M. Sabol
IPC分类号： A61B600
CPC分类号： A61B6/542 , A61B6/032 , A61B6/5235 , A61B6/5247 , A61B6/545 , G06F19/00 , G06T7/0012 , Y10S378/901
摘要： The invention provides a technique for acquiring subsequent image data in a medical diagnostic context based upon analysis of initial image data. The initial image data is processed via a computer aided diagnosis algorithm to determine whether additional image data acquisition is appropriate. Subsequent acquisition processes may be performed on the same imaging system from which the initial image data originated, or a different imaging system. The imaging systems may also be of different modalities. The subsequent acquisition of image data may be performed automatically without operator intervention, or the prescribed subsequent acquisition sequence may be outputted by the system for execution upon command of an operator.
摘要翻译：本发明提供一种基于初始图像数据的分析在医疗诊断上下文中获取后续图像数据的技术。通过计算机辅助诊断算法处理初始图像数据，以确定附加图像数据采集是否合适。随后的采集过程可以在与其起始的图像数据相同的成像系统或不同的成像系统上执行。成像系统也可以是不同的模式。图像数据的后续采集可以在没有操作员干预的情况下自动执行，或者可以由系统输出规定的后续采集序列，以便在操作者的命令时执行。

7. 发明授权

US07756312B2 Methods and apparatus for noise estimation 有权
标题翻译：用于噪声估计的方法和装置
公开(公告)号：US07756312B2
公开(公告)日：2010-07-13
申请号：US11551109
申请日：2006-10-19
申请人： Jiang Hsieh , Michael Joseph Washburn , Erik Normann Steen , Gopal B. Avinash
发明人： Jiang Hsieh , Michael Joseph Washburn , Erik Normann Steen , Gopal B. Avinash
IPC分类号： G06K9/00 , A61B6/00
CPC分类号： G06T7/0002 , A61B6/508 , A61B6/5258 , A61B6/583 , G06T11/008 , G06T2207/30168
摘要： The method includes estimating a noise level in a reconstructed image using a total attenuation of the reconstructed image.
摘要翻译：该方法包括使用重构图像的总衰减来估计重建图像中的噪声电平。

8. 发明申请

US20080095462A1 Methods and Apparatus for Noise Estimation 有权
标题翻译：噪声估计方法与装置
公开(公告)号：US20080095462A1
公开(公告)日：2008-04-24
申请号：US11551109
申请日：2006-10-19
申请人： Jiang Hsieh , Michael Joseph Washburn , Erik Normann Steen , Gopal B. Avinash
发明人： Jiang Hsieh , Michael Joseph Washburn , Erik Normann Steen , Gopal B. Avinash
IPC分类号： G06K9/00 , G06K9/40
CPC分类号： G06T7/0002 , A61B6/508 , A61B6/5258 , A61B6/583 , G06T11/008 , G06T2207/30168
摘要： The method includes estimating a noise level in a reconstructed image using a total attenuation of the reconstructed image.
摘要翻译：该方法包括使用重构图像的总衰减来估计重建图像中的噪声电平。

9. 发明授权

US06574304B1 Computer aided acquisition of medical images 有权
标题翻译：计算机辅助获取医学图像
公开(公告)号：US06574304B1
公开(公告)日：2003-06-03
申请号：US10242975
申请日：2002-09-13
申请人： Jiang Hsieh , Gopal B. Avinash , Cherik Bulkes , John M. Sabol
发明人： Jiang Hsieh , Gopal B. Avinash , Cherik Bulkes , John M. Sabol
IPC分类号： A61B600
CPC分类号： A61B6/542 , A61B6/032 , A61B6/5235 , A61B6/5247 , A61B6/545 , G06F19/00 , G06T7/0012 , Y10S378/901
摘要： The invention provides a technique for acquiring subsequent image data in a medical diagnostic context based upon analysis of initial image data. The initial image data is processed via a computer aided diagnosis algorithm to determine whether additional image data acquisition is appropriate. Subsequent acquisition processes may be performed on the same imaging system from which the initial image data originated, or a different imaging system. The imaging systems may also be of different modalities. The subsequent acquisition of image data may be performed automatically without operator intervention, or the prescribed subsequent acquisition sequence may be outputted by the system for execution upon command of an operator.
摘要翻译：本发明提供一种基于初始图像数据的分析在医疗诊断上下文中获取后续图像数据的技术。通过计算机辅助诊断算法处理初始图像数据，以确定附加图像数据采集是否合适。随后的采集过程可以在与其起始的图像数据相同的成像系统或不同的成像系统上执行。成像系统也可以是不同的模式。图像数据的后续采集可以在没有操作者干预的情况下自动执行，或者可以由系统输出规定的后续采集序列，以便在操作者的命令下执行。

10. 发明授权

US06490334B1 Methods and apparatus for high pitch helical computed tomography image reconstruction 失效
标题翻译：高螺距螺旋计算机断层扫描图像重建方法与装置
公开(公告)号：US06490334B1
公开(公告)日：2002-12-03
申请号：US09896957
申请日：2001-06-29
申请人： Sharon X. Wang , Thomas L. Toth , Piero U. Simoni , Stephen W. Metz , Jiang Hsieh
发明人： Sharon X. Wang , Thomas L. Toth , Piero U. Simoni , Stephen W. Metz , Jiang Hsieh
IPC分类号： A61B603
CPC分类号： A61B6/032 , A61B6/027 , A61B6/4085 , A61B6/5205 , Y10S378/901
摘要： There is therefore provided, in one aspect, a method for imaging an object utilizing a computed tomographic (CT) imaging system having a rotating gantry, a multislice detector array on the rotating gantry and using at least n>1 rows of detector channels, and a radiation source on the rotating gantry configured to project a beam of radiation towards the multislice detector array through an object to be imaged. The method includes helically scanning the object with the CT imaging system at a pitch p>n to acquire projection data from the n rows of detector channels; applying a combined helical weight and conjugate weight to at least a portion of the acquired projection data to produce virtual projection data compensating for incomplete helical row data of the acquired projection data; and reconstructing an image of the object utilizing the acquired projection data and the virtual projection data.
摘要翻译：因此，在一个方面中，提供一种利用具有旋转机架的计算机断层摄影（CT）成像系统对成像进行成像的方法，在旋转机架上使用多层检测器阵列并且至少使用n> 1行检测器通道，以及旋转台架上的辐射源被配置成通过待成像的物体将辐射束投射到多层检测器阵列。该方法包括用间距p> n的CT成像系统螺旋扫描物体，以从n行检测器通道获取投影数据; 对所获取的投影数据的至少一部分应用组合的螺旋重量和共轭权重，以产生补偿所获取的投影数据的不完整螺旋行数据的虚拟投影数据; 以及使用所获取的投影数据和虚拟投影数据来重建对象的图像。

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