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1. 发明授权

US07031430B2 System and method for detecting objects with differential operators 有权
标题翻译：用差分运算符检测物体的系统和方法
公开(公告)号：US07031430B2
公开(公告)日：2006-04-18
申请号：US10818049
申请日：2004-04-06
申请人： Robert August Kaucic, Jr. , Ricardo Scott Avila , Timothy Patrick Kelliher , Daniel James Blezek , William MaComber Leue
发明人： Robert August Kaucic, Jr. , Ricardo Scott Avila , Timothy Patrick Kelliher , Daniel James Blezek , William MaComber Leue
IPC分类号： G01N23/04
CPC分类号： G01V5/0016 , G01N23/046 , G01N2223/419 , G01V5/005 , Y10S378/901
摘要： A system and a method for detecting an object, such as an explosive device or material, located within a closed article, such as a piece of luggage or a parcel. The system includes an acquisition subsystem for acquiring information pertaining to a specific object, a reconstruction subsystem for reconstructing acquired information pertaining to the specific object into image data, and a computer-aided detection subsystem adapted for identifying the specific object through the use of differential operators. The method includes obtaining image data of the one object, computing a differential operator for each voxel of the image data, computing eigenvalues and eigenvectors for each of the voxels, and computing a scalar function of the eigenvalues to ascertain whether each of the voxels represents a portion of the one object.
摘要翻译：用于检测位于封闭物品（例如行李或包裹）内的物体（例如爆炸装置或材料）的系统和方法。该系统包括用于获取与特定对象相关的信息的采集子系统，用于将与特定对象相关的获取的信息重建成图像数据的重建子系统，以及适于通过使用差分运算符来识别特定对象的计算机辅助检测子系统。该方法包括获得一个对象的图像数据，为图像数据的每个体素计算微分算子，计算每个体素的特征值和特征向量，以及计算特征值的标量函数，以确定每个体素是否代表一个对象的一部分。

2. 发明授权

US07977943B2 Method and system for reconstructing images 有权
标题翻译：重建图像的方法和系统
公开(公告)号：US07977943B2
公开(公告)日：2011-07-12
申请号：US12421266
申请日：2009-04-09
申请人： Luca Marinelli , Christopher Judson Hardy , Daniel James Blezek
发明人： Luca Marinelli , Christopher Judson Hardy , Daniel James Blezek
IPC分类号： G01V3/00
CPC分类号： G01R33/561 , G01R33/5608 , G01R33/5611
摘要： A method for reconstructing an image in a magnetic resonance imaging system is provided. The method includes steps of acquiring magnetic resonance signals from a plurality of receiver coils placed about a subject, each receiver coil having a coil sensitivity, iteratively polling each acquired magnetic resonance signal for determining one or more significant wavelet components of each acquired magnetic resonance signal by utilizing a coil sensitivity function of each receiver coil for each acquired magnetic resonance signal, iteratively determining one or more coefficients based on the one or more significant wavelet components to generate a plurality of coefficients for each acquired magnetic resonance signal, reconstructing an image utilizing a corresponding plurality of coefficients corresponding to each acquired magnetic resonance signal, and generating a composite image by combining the reconstructed images.
摘要翻译：提供了一种用于在磁共振成像系统中重建图像的方法。该方法包括以下步骤：从放置在被摄体周围的多个接收器线圈获取磁共振信号，每个接收器线圈具有线圈灵敏度，迭代地轮询每个获取的磁共振信号，用于通过以下步骤确定每个获取的磁共振信号的一个或多个有效小波分量：利用每个接收器线圈对于每个获取的磁共振信号的线圈灵敏度函数，基于所述一个或多个有效小波分量迭代地确定一个或多个系数，以产生用于每个获取的磁共振信号的多个系数，使用相应的对应于每个获取的磁共振信号的多个系数，以及通过组合重建的图像来生成合成图像。

3. 发明申请

US20070249928A1 Method and system for precise repositioning of regions of interest in longitudinal magnetic resonance imaging and spectroscopy exams 审中-公开
标题翻译：用于在纵向磁共振成像和光谱检查中精确重新定位感兴趣区域的方法和系统
公开(公告)号：US20070249928A1
公开(公告)日：2007-10-25
申请号：US11590949
申请日：2006-11-01
申请人： Daniel James Blezek , Ileana Hancu , Michelle Dumoulin , Richard Philip Mallozzi
发明人： Daniel James Blezek , Ileana Hancu , Michelle Dumoulin , Richard Philip Mallozzi
IPC分类号： A61B5/05
CPC分类号： G01R33/565 , A61B5/0037 , G01R33/485 , G01R33/5608 , G01R33/56509
摘要： The present invention provides a method and system for automatically processing longitudinal magnetic resonance (MR) images comprising obtaining a first MR image, selecting a region of interest within the first MR image, obtaining at least one subsequent MR image, applying a registration relative to the first MR image and the at least one subsequent MR image wherein the region of interest in the at least one subsequent MR image is repositioned analogously to the region of interest in the first MR image. A computer readable program is provided configured to apply a registration relative to a first MR image and an at least one subsequent MR wherein a region of interest in the at least one subsequent MR image is repositioned analogously to a region of interest in the first MR image.
摘要翻译：本发明提供一种用于自动处理纵向磁共振（MR）图像的方法和系统，包括获得第一MR图像，选择第一MR图像内的感兴趣区域，获得至少一个后续MR图像，相对于第一MR图像和所述至少一个后续MR图像，其中所述至少一个后续MR图像中的感兴趣区域类似于第一MR图像中的感兴趣区域重新定位。提供了一种计算机可读程序，其被配置为相对于第一MR图像和至少一个后续MR应用注册，其中所述至少一个后续MR图像中的感兴趣区域类似于第一MR图像中的感兴趣区域重新定位。

4. 发明授权

US08165377B2 System and method for determining a cardiac axis 有权
标题翻译：用于确定心轴的系统和方法
公开(公告)号：US08165377B2
公开(公告)日：2012-04-24
申请号：US12323594
申请日：2008-11-26
申请人： Vivek Vaidya , Rakesh Mullick , Shekhar Dwivedi , Thomas K. F. Foo , Christopher Judson Hardy , Daniel James Blezek , Umesha Perdoor Srinivas Adiga
发明人： Vivek Vaidya , Rakesh Mullick , Shekhar Dwivedi , Thomas K. F. Foo , Christopher Judson Hardy , Daniel James Blezek , Umesha Perdoor Srinivas Adiga
IPC分类号： G06K9/00 , A61B5/05
CPC分类号： A61B5/055 , A61B5/0037 , A61B6/032 , A61B6/503 , A61B8/14 , G06T7/75 , G06T2207/10088 , G06T2207/30048
摘要： An apparatus, system and method to determine a coordinate system of a heart includes an imager and a computer. The computer is programmed to acquire a first set of initialization imaging data from an anatomical region of a free-breathing subject. A portion of the first set of initialization imaging data includes organ data, which includes cardiac data. The computer is further programmed to determine a location of a central region of a left ventricle of a heart, where the location is based on the organ data and a priori information. The computer is also programmed to determine a short axis of the left ventricle based on the determined location, acquire a first set of post-initialization imaging data from the free-breathing subject from an imaging plane orientation based on the determination of the short axis, and reconstruct at least one image from the first set of post-initialization imaging data.
摘要翻译：用于确定心脏坐标系的装置，系统和方法包括成像器和计算机。计算机被编程为从自由呼吸对象的解剖区域获取第一组初始化成像数据。第一组初始化成像数据的一部分包括包括心脏数据的器官数据。计算机还被编程为确定心脏左心室的中心区域的位置，其中位置基于器官数据和先验信息。计算机还被编程为基于确定的位置来确定左心室的短轴，基于短轴的确定，从成像平面取向获取来自自由呼吸对象的第一组初始初始化后成像数据，并且从所述第一组初始化后成像数据重建至少一个图像。

5. 发明申请

US20100128947A1 SYSTEM AND METHOD FOR DETERMINING A CARDIAC AXIS 有权
标题翻译：用于确定心脏轴的系统和方法
公开(公告)号：US20100128947A1
公开(公告)日：2010-05-27
申请号：US12323594
申请日：2008-11-26
申请人： Vivek Vaidya , Rakesh Mullick , Shekhar Dwivedi , Thomas K.F. Foo , Christopher Judson Hardy , Daniel James Blezek , Umesha Perdoor Srinivas Adiga
发明人： Vivek Vaidya , Rakesh Mullick , Shekhar Dwivedi , Thomas K.F. Foo , Christopher Judson Hardy , Daniel James Blezek , Umesha Perdoor Srinivas Adiga
IPC分类号： G06K9/00 , A61B5/05
CPC分类号： A61B5/055 , A61B5/0037 , A61B6/032 , A61B6/503 , A61B8/14 , G06T7/75 , G06T2207/10088 , G06T2207/30048
摘要： An apparatus, system and method to determine a coordinate system of a heart includes an imager and a computer. The computer is programmed to acquire a first set of initialization imaging data from an anatomical region of a free-breathing subject. A portion of the first set of initialization imaging data includes organ data, which includes cardiac data. The computer is further programmed to determine a location of a central region of a left ventricle of a heart, where the location is based on the organ data and a priori information. The computer is also programmed to determine a short axis of the left ventricle based on the determined location, acquire a first set of post-initialization imaging data from the free-breathing subject from an imaging plane orientation based on the determination of the short axis, and reconstruct at least one image from the first set of post-initialization imaging data.
摘要翻译：用于确定心脏坐标系的装置，系统和方法包括成像器和计算机。计算机被编程为从自由呼吸对象的解剖区域获取第一组初始化成像数据。第一组初始化成像数据的一部分包括包括心脏数据的器官数据。计算机还被编程为确定心脏左心室的中心区域的位置，其中位置基于器官数据和先验信息。计算机还被编程为基于确定的位置来确定左心室的短轴，基于短轴的确定，从成像平面取向获取来自自由呼吸对象的第一组初始初始化后成像数据，并且从所述第一组初始化后成像数据重建至少一个图像。

6. 发明申请

US20090256565A1 METHOD AND SYSTEM FOR RECONSTRUCTING IMAGES 有权
标题翻译：用于重构图像的方法和系统
公开(公告)号：US20090256565A1
公开(公告)日：2009-10-15
申请号：US12421266
申请日：2009-04-09
申请人： Luca Marinelli , Christopher Judson Hardy , Daniel James Blezek
发明人： Luca Marinelli , Christopher Judson Hardy , Daniel James Blezek
IPC分类号： G01R33/20
CPC分类号： G01R33/561 , G01R33/5608 , G01R33/5611
摘要： A method for reconstructing an image in a magnetic resonance imaging system is provided. The method includes steps of acquiring magnetic resonance signals from a plurality of receiver coils placed about a subject, each receiver coil having a coil sensitivity, iteratively polling each acquired magnetic resonance signal for determining one or more significant wavelet components of each acquired magnetic resonance signal by utilizing a coil sensitivity function of each receiver coil for each acquired magnetic resonance signal, iteratively determining one or more coefficients based on the one or more significant wavelet components to generate a plurality of coefficients for each acquired magnetic resonance signal, reconstructing an image utilizing a corresponding plurality of coefficients corresponding to each acquired magnetic resonance signal, and generating a composite image by combining the reconstructed images.
摘要翻译：提供了一种用于在磁共振成像系统中重建图像的方法。该方法包括以下步骤：从放置在被摄体周围的多个接收器线圈获取磁共振信号，每个接收器线圈具有线圈灵敏度，迭代地轮询每个获取的磁共振信号，用于通过以下步骤确定每个获取的磁共振信号的一个或多个有效小波分量：利用每个接收器线圈对于每个获取的磁共振信号的线圈灵敏度函数，基于所述一个或多个有效小波分量迭代地确定一个或多个系数，以产生用于每个获取的磁共振信号的多个系数，使用相应的对应于每个获取的磁共振信号的多个系数，以及通过组合重建的图像来生成合成图像。

7. 发明申请

US20090253983A1 IMAGE BASED MEASUREMENT OF CONTRAST AGENTS 审中-公开
标题翻译：基于图像的对比度测量
公开(公告)号：US20090253983A1
公开(公告)日：2009-10-08
申请号：US12099006
申请日：2008-04-07
申请人： Thomas Kwok-Fah Foo , Daniel James Blezek , William Thomas Dixon
发明人： Thomas Kwok-Fah Foo , Daniel James Blezek , William Thomas Dixon
IPC分类号： A61B5/055
CPC分类号： A61B5/055 , G01R33/5601 , G01R33/563
摘要： Provided is a method, including accessing or acquiring a phase image including a contrast agent enhanced region and determining a quantity of a contrast agent based on the phase image. Further provided is a computer program for determining the quantity of a substance in a region. The program is constructed and arranged to access or acquire a contrast enhanced image, to execute a fitting algorithm based on data contained in the contrast enhanced image, and to determine the quantity of the substance based on the output/result/outcome of the fitting algorithm.
摘要翻译：提供了一种方法，包括访问或获取包括造影剂增强区域的相位图像，并且基于相位图像确定造影剂的量。还提供了一种用于确定区域中的物质的量的计算机程序。该程序被构造和布置成访问或获取对比度增强图像，以基于对比度增强图像中包含的数据执行拟合算法，并且基于拟合算法的输出/结果/结果来确定物质的数量。

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