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1. 发明授权

US07519211B2 Factor analysis in medical imaging 有权
标题翻译：医学影像因素分析
公开(公告)号：US07519211B2
公开(公告)日：2009-04-14
申请号：US11533145
申请日：2006-09-19
申请人： Georges El Fakhri , Arkadiusz Sitek
发明人： Georges El Fakhri , Arkadiusz Sitek
IPC分类号： G06K9/00 , G06K9/38 , G06K9/62
CPC分类号： G06T7/0012 , A61B6/037 , A61B6/503 , A61B6/5217 , G06F19/00 , G06T2207/30024 , G06T2207/30101
摘要： A method for processing image data includes estimating initial factor images from image data, transforming the estimated initial factor images by a transformation variable to obtain transformed factor images, providing an objective function that is a function of the transformed factor images, and minimizing the objective function to obtain unique factor images from the estimated initial factor images.
摘要翻译：一种处理图像数据的方法包括从图像数据估计初始因子图像，通过变换变量变换所估计的初始因子图像以获得变换因子图像，提供作为变换因子图像的函数的目标函数，并使目标函数最小化以从估计的初始因子图像中获得独特的因子图像。

2. 发明申请

US20090226064A1 FACTOR ANALYSIS IN MEDICAL IMAGING 有权
标题翻译：医学成像中的因素分析
公开(公告)号：US20090226064A1
公开(公告)日：2009-09-10
申请号：US12414153
申请日：2009-03-30
申请人： Georges El Fakhri , Arkadiusz Sitek
发明人： Georges El Fakhri , Arkadiusz Sitek
IPC分类号： G06K9/00 , G06T17/00
CPC分类号： G06T7/0012 , A61B6/037 , A61B6/503 , A61B6/5217 , G06F19/00 , G06T2207/30024 , G06T2207/30101
摘要： A method for estimating kinetic parameters from image data includes using a processor to execute instructions for providing a model of kinetic contributions from first and second physiological regions; grouping voxels of the image data into first and second groups; determining an average value of the factors associated with the first group, the factors corresponding to blood-flow time activity curves; incorporating the average value of the factors associated with the first group into the model of kinetic contributions from the first and second physiological regions; and estimating the kinetic parameters based on the model of kinetic contributions.
摘要翻译：用于从图像数据估计动力学参数的方法包括使用处理器执行用于提供来自第一和第二生理区域的动力学贡献的模型的指令; 将图像数据的体素分组成第一和第二组; 确定与第一组相关因素的平均值，与血流时间活动曲线相对应的因子; 将与第一组相关因素的平均值并入来自第一和第二生理区域的动力学贡献模型; 并基于动力学贡献模型估计动力学参数。

3. 发明申请

US20080292165A1 Generalized 5D Dynamic and Spectral Factor Analysis 有权
标题翻译：广义5D动态和光谱因子分析
公开(公告)号：US20080292165A1
公开(公告)日：2008-11-27
申请号：US11916568
申请日：2006-06-16
申请人： Georges El Fakhri , Arkadiusz Sitek
发明人： Georges El Fakhri , Arkadiusz Sitek
IPC分类号： G06K9/00
CPC分类号： G06T5/001 , G06T2207/30004
摘要： A method for processing image data includes representing the image data as a model having a spatial dimension, a time dimension, and an energy dimension; providing an objective function that is a function of energy factors, time factors, and image coefficients included in the model; and determining values of the energy factors, the time factors, and the image coefficients that minimize a difference between the optimal value of an objective function and a value of the objective function, the values of the energy factors, the time factors, and the image coefficients defining a solution.
摘要翻译：用于处理图像数据的方法包括将图像数据表示为具有空间维度，时间维度和能量尺寸的模型; 提供作为能量因子，时间因子和模型中包含的图像系数的函数的目标函数; 并确定最小化目标函数的最佳值与目标函数的值之间的差的能量因子，时间因子和图像系数的值，能量因子的值，时间因子和图像定义解决方案的系数。

4. 发明授权

US08204285B2 Generalized 5D dynamic and spectral factor analysis 有权
标题翻译：广义5D动态和光谱因子分析
公开(公告)号：US08204285B2
公开(公告)日：2012-06-19
申请号：US11916568
申请日：2006-06-16
申请人： Georges El Fakhri , Arkadiusz Sitek
发明人： Georges El Fakhri , Arkadiusz Sitek
IPC分类号： G06K9/00
CPC分类号： G06T5/001 , G06T2207/30004
摘要： A method for processing image data includes representing the image data as a model having a spatial dimension, a time dimension, and an energy dimension; providing an objective function that is a function of energy factors, time factors, and image coefficients included in the model; and determining values of the energy factors, the time factors, and the image coefficients that minimize a difference between the optimal value of an objective function and a value of the objective function, the values of the energy factors, the time factors, and the image coefficients defining a solution.
摘要翻译：用于处理图像数据的方法包括将图像数据表示为具有空间维度，时间维度和能量尺寸的模型; 提供作为能量因子，时间因子和模型中包含的图像系数的函数的目标函数; 并确定最小化目标函数的最佳值与目标函数的值之间的差的能量因子，时间因子和图像系数的值，能量因子的值，时间因子和图像定义解决方案的系数。

5. 发明授权

US08175355B2 Factor analysis in medical imaging 有权
标题翻译：医学影像因素分析
公开(公告)号：US08175355B2
公开(公告)日：2012-05-08
申请号：US12414153
申请日：2009-03-30
申请人： Georges El Fakhri , Arkadiusz Sitek
发明人： Georges El Fakhri , Arkadiusz Sitek
IPC分类号： G06K9/00 , G06K9/38 , G06K9/62
CPC分类号： G06T7/0012 , A61B6/037 , A61B6/503 , A61B6/5217 , G06F19/00 , G06T2207/30024 , G06T2207/30101
摘要： A method for estimating kinetic parameters from image data includes using a processor to execute instructions for providing a model of kinetic contributions from first and second physiological regions; grouping voxels of the image data into first and second groups; determining an average value of the factors associated with the first group, the factors corresponding to blood-flow time activity curves; incorporating the average value of the factors associated with the first group into the model of kinetic contributions from the first and second physiological regions; and estimating the kinetic parameters based on the model of kinetic contributions.
摘要翻译：用于从图像数据估计动力学参数的方法包括使用处理器执行用于提供来自第一和第二生理区域的动力学贡献的模型的指令; 将图像数据的体素分组成第一和第二组; 确定与第一组相关因素的平均值，与血流时间活动曲线相对应的因子; 将与第一组相关因素的平均值并入来自第一和第二生理区域的动力学贡献模型; 并基于动力学贡献模型估计动力学参数。

6. 发明申请

US20070014463A1 Factor Analysis in Medical Imaging 有权
标题翻译：医学影像因素分析
公开(公告)号：US20070014463A1
公开(公告)日：2007-01-18
申请号：US11533145
申请日：2006-09-19
申请人： Georges El Fakhri , Arkadiusz Sitek
发明人： Georges El Fakhri , Arkadiusz Sitek
IPC分类号： G06K9/00
CPC分类号： G06T7/0012 , A61B6/037 , A61B6/503 , A61B6/5217 , G06F19/00 , G06T2207/30024 , G06T2207/30101
摘要： A method for processing image data includes estimating initial factor images from image data, transforming the estimated initial factor images by a transformation variable to obtain transformed factor images, providing an objective function that is a function of the transformed factor images, and minimizing the objective function to obtain unique factor images from the estimated initial factor images.
摘要翻译：一种处理图像数据的方法包括从图像数据估计初始因子图像，通过变换变量变换所估计的初始因子图像以获得变换因子图像，提供作为变换因子图像的函数的目标函数，并使目标函数最小化以从估计的初始因子图像中获得独特的因子图像。

7. 发明授权

US07127095B2 Factor analysis in medical imaging 有权
公开(公告)号：US07127095B2
公开(公告)日：2006-10-24
申请号：US11148700
申请日：2005-06-09
申请人： Georges El Fakhri , Arkadiusz Sitek
发明人： Georges El Fakhri , Arkadiusz Sitek
IPC分类号： G06K9/00 , G06K9/36 , G06K9/38
CPC分类号： G06T7/0012 , A61B6/037 , A61B6/503 , A61B6/5217 , G06F19/00 , G06T2207/30024 , G06T2207/30101
摘要： A method for processing image data includes estimating initial factor images from image data, transforming the estimated initial factor images by a transformation variable to obtain transformed factor images, providing an objective function that is a function of the transformed factor images, and minimizing the objective function to obtain unique factor images from the estimated initial factor images.

8. 发明申请

US20060083415A1 Factor analysis in medical imaging 有权
公开(公告)号：US20060083415A1
公开(公告)日：2006-04-20
申请号：US11148700
申请日：2005-06-09
申请人： Georges El Fakhri , Arkadiusz Sitek
发明人： Georges El Fakhri , Arkadiusz Sitek
IPC分类号： G06K9/00
CPC分类号： G06T7/0012 , A61B6/037 , A61B6/503 , A61B6/5217 , G06F19/00 , G06T2207/30024 , G06T2207/30101
摘要： A method for processing image data includes estimating initial factor images from image data, transforming the estimated initial factor images by a transformation variable to obtain transformed factor images, providing an objective function that is a function of the transformed factor images, and minimizing the objective function to obtain unique factor images from the estimated initial factor images.

9. 发明申请

US20150057535A1 SYSTEMS AND METHODS FOR ATTENUATION CORRECTION IN TIME-OF-FLIGHT POSITRON EMISSION TOMOGRAPHY 审中-公开
标题翻译：在飞行时间排放测量中的衰减校正的系统和方法
公开(公告)号：US20150057535A1
公开(公告)日：2015-02-26
申请号：US14503812
申请日：2014-10-01
申请人： Arkadiusz Sitek
发明人： Arkadiusz Sitek
IPC分类号： A61B6/00 , G06T11/00 , A61B6/03
CPC分类号： A61B6/5205 , A61B6/037 , A61B6/4233 , A61B6/481 , G06T11/005
摘要： Systems and methods for attenuation correction in time-of-flight (“TOF”) positron emission tomography (“PET”) imaging are provided. In some aspects, a provided PET system includes a plurality of detectors arranged about a bore configured to receive the subject, the plurality of detectors configured to acquire gamma rays emitted from the subject as a result of a radiotracer administered to the subject. The system also includes a data acquisition processor in communication with the plurality of detectors and configured to acquire TOF-PET data corresponding to acquired gamma rays. The system further includes an image reconstruction processor configured to process the acquired TOF-PET data with steps including estimating from the TOF-PET data, a posterior probability distribution of attenuation-corrected TOF-PET data, and reconstructing attenuation-corrected images from the posterior probability distribution of attenuation-corrected TOF-PET data. In some aspects, the image reconstruction processor is further configured to produce attenuation maps using the attenuation-corrected TOF-PET data.
摘要翻译：提供了飞行时间（“TOF”）正电子发射断层扫描（“PET”）成像中衰减校正的系统和方法。在一些方面，提供的PET系统包括围绕被配置为接收受试者的孔布置的多个检测器，所述多个检测器被配置为获取由被摄物体施加的放射性示踪剂的结果从受检者发射的γ射线。该系统还包括与多个检测器通信的数据采集处理器，并被配置为获取对应于获取的伽马射线的TOF-PET数据。该系统还包括一个图像重建处理器，被配置为用TOH-PET数据估算所获得的TOF-PET数据，其中包括从TOF-PET数据估计衰减校正的TOF-PET数据的后验概率分布，以及从后面重建经衰减校正的图像衰减校正TOF-PET数据的概率分布。在一些方面，图像重建处理器还被配置为使用衰减校正的TOF-PET数据产生衰减图。

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