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1. 发明授权

US08158951B2 Apparatus and methods for evaluating operation of pixelated detectors 有权
标题翻译：用于评估像素化检测器的操作的装置和方法
公开(公告)号：US08158951B2
公开(公告)日：2012-04-17
申请号：US12365100
申请日：2009-02-03
申请人： Girish Bal , Floribertus Heukensfeldt Jansen , Osnat Zak , Gideon Berlad , Yaron Hefetz , Sergei Dolinsky , Brian D. Yanoff , John Eric Tkaczyk , Yanfeng Du , Ravindra Mohan Manjeshwar , Evren Asma , Qian Hua
发明人： Girish Bal , Floribertus Heukensfeldt Jansen , Osnat Zak , Gideon Berlad , Yaron Hefetz , Sergei Dolinsky , Brian D. Yanoff , John Eric Tkaczyk , Yanfeng Du , Ravindra Mohan Manjeshwar , Evren Asma , Qian Hua
IPC分类号： G01T1/00
CPC分类号： G01T1/249 , G01T1/247
摘要： An apparatus and methods for evaluating the operation of pixelated detectors are provided. The method includes obtaining data values for each of a plurality of pixels of a pixelated detector and determining a data consistency metric for each of the plurality of detector pixels. The method further includes identifying, using the determined data consistency metric, any detector pixels that exceed an acceptance criterion as noisy pixels.
摘要翻译：提供了一种用于评估像素化检测器的操作的装置和方法。该方法包括获得像素化检测器的多个像素中的每一个的数据值，并确定多个检测器像素中的每一个的数据一致性度量。该方法还包括使用所确定的数据一致性度量来识别超过接受标准的任何检测器像素作为噪声像素。

2. 发明申请

US20100193697A1 APPARATUS AND METHODS FOR EVALUATING OPERATION OF PIXELATED DETECTORS 有权
标题翻译：用于评估像素检测器操作的装置和方法
公开(公告)号：US20100193697A1
公开(公告)日：2010-08-05
申请号：US12365100
申请日：2009-02-03
申请人： Girish Bal , Floribertus Heukensfeldt Jansen , Osnat Zak , Gideon Berlad , Yaron Hefetz , Sergei Dolinsky , Brian D. Yanoff , John Eric Tkaczyk , Yanfeng Du , Ravindra Mohan Manjeshwar , Evren Asma , Qian Hua
发明人： Girish Bal , Floribertus Heukensfeldt Jansen , Osnat Zak , Gideon Berlad , Yaron Hefetz , Sergei Dolinsky , Brian D. Yanoff , John Eric Tkaczyk , Yanfeng Du , Ravindra Mohan Manjeshwar , Evren Asma , Qian Hua
IPC分类号： G01T1/00 , G01T1/172
CPC分类号： G01T1/249 , G01T1/247
摘要： An apparatus and methods for evaluating the operation of pixelated detectors are provided. The method includes obtaining data values for each of a plurality of pixels of a pixelated detector and determining a data consistency metric for each of the plurality of detector pixels. The method further includes identifying, using the determined data consistency metric, any detector pixels that exceed an acceptance criterion as noisy pixels.
摘要翻译：提供了一种用于评估像素化检测器的操作的装置和方法。该方法包括获得像素化检测器的多个像素中的每一个的数据值，并确定多个检测器像素中的每一个的数据一致性度量。该方法还包括使用所确定的数据一致性度量来识别超过接受标准的任何检测器像素作为噪声像素。

3. 发明授权

US08507869B2 Methods and systems for adaptive tomographic imaging 有权
标题翻译：自适应断层成像的方法和系统
公开(公告)号：US08507869B2
公开(公告)日：2013-08-13
申请号：US13282586
申请日：2011-10-27
申请人： Evren Asma , Ravindra Mohan Manjeshwar
发明人： Evren Asma , Ravindra Mohan Manjeshwar
IPC分类号： G01T1/166
CPC分类号： A61B6/037 , A61B6/469 , A61B6/488 , A61B6/545
摘要： Nuclear imaging systems, non-transitory computer readable media and methods for adaptive imaging are presented. Particularly, the present method includes acquiring preliminary projection data by scanning each of one or more views of a subject for a determined preliminary scan interval. Further, a region of interest of the subject is identified. The preliminary projection data is then used to perform a constrained optimization of a rapidly computable image quality metric for determining an acquisition protocol that improves the image quality metric at the identified region of interest. Particularly, the determined acquisition protocol is used to acquire target projection data corresponding to at least the identified region of interest. Further, an image of at least the identified region of interest is reconstructed using the target projection data, the preliminary projection data, or a combination thereof.
摘要翻译：介绍了核成像系统，非瞬态计算机可读介质和自适应成像方法。特别地，本方法包括通过扫描被确定的初步扫描间隔的一个或多个视图中的每一个来获取初步投影数据。此外，识别受试者的感兴趣区域。然后使用初步投影数据来执行快速可计算的图像质量度量的约束优化，以确定改善所识别的感兴趣区域的图像质量度量的采集协议。特别地，所确定的获取协议被用于获取对应于至少所识别的感兴趣区域的目标投影数据。此外，使用目标投影数据，初步投影数据或其组合来重建至少所识别的感兴趣区域的图像。

4. 发明申请

US20130105699A1 METHODS AND SYSTEMS FOR ADAPTIVE TOMOGRAPHIC IMAGING 有权
标题翻译：自适应图像成像的方法和系统
公开(公告)号：US20130105699A1
公开(公告)日：2013-05-02
申请号：US13282586
申请日：2011-10-27
申请人： Evren Asma , Ravindra Mohan Manjeshwar
发明人： Evren Asma , Ravindra Mohan Manjeshwar
IPC分类号： G01T1/164 , G06K9/00
CPC分类号： A61B6/037 , A61B6/469 , A61B6/488 , A61B6/545
摘要： Nuclear imaging systems, non-transitory computer readable media and methods for adaptive imaging are presented. Particularly, the present method includes acquiring preliminary projection data by scanning each of one or more views of a subject for a determined preliminary scan interval. Further, a region of interest of the subject is identified. The preliminary projection data is then used to perform a constrained optimization of a rapidly computable image quality metric for determining an acquisition protocol that improves the image quality metric at the identified region of interest. Particularly, the determined acquisition protocol is used to acquire target projection data corresponding to at least the identified region of interest. Further, an image of at least the identified region of interest is reconstructed using the target projection data, the preliminary projection data, or a combination thereof.
摘要翻译：介绍了核成像系统，非瞬态计算机可读介质和自适应成像方法。特别地，本方法包括通过扫描被确定的初步扫描间隔的一个或多个视图中的每一个来获取初步投影数据。此外，识别受试者的感兴趣区域。然后使用初步投影数据来执行快速可计算的图像质量度量的约束优化，以确定改善所识别的感兴趣区域的图像质量度量的采集协议。特别地，所确定的获取协议被用于获取对应于至少所识别的感兴趣区域的目标投影数据。此外，使用目标投影数据，初步投影数据或其组合来重建至少所识别的感兴趣区域的图像。

5. 发明申请

US20100220909A1 METHOD AND APPARATUS FOR REDUCING IMAGE ARTIFACTS 有权
标题翻译：用于减少图像的方法和装置
公开(公告)号：US20100220909A1
公开(公告)日：2010-09-02
申请号：US12394772
申请日：2009-02-27
申请人： Kris Filip Johan Jules Thielemans , Scott David Wollenweber , Alexander Ganin , Anja Brau , Floribertus P. M. Heukensfeldt Jansen , Evren Asma , Rakesh Mullick , Ravindra Mohan Manjeshwar , Ajit Shankaranarayanan
发明人： Kris Filip Johan Jules Thielemans , Scott David Wollenweber , Alexander Ganin , Anja Brau , Floribertus P. M. Heukensfeldt Jansen , Evren Asma , Rakesh Mullick , Ravindra Mohan Manjeshwar , Ajit Shankaranarayanan
IPC分类号： G06K9/00
CPC分类号： G06T11/005 , G06T2211/412
摘要： A method and apparatus are provided for reducing motion related imaging artifacts. The method includes determining an internal motion for of two regions of the object, each region having a different level of motion, scanning the first region using a first scan protocol based on the motion, scanning a second region using a second different scan protocol based on the motion, and generating an image of the object based on the first and second regions.
摘要翻译：提供了一种用于减少运动相关成像伪影的方法和装置。该方法包括确定对象的两个区域的内部运动，每个区域具有不同的运动水平，基于运动使用第一扫描协议扫描第一区域，使用基于第二扫描协议的第二不同扫描协议扫描第二区域运动，以及基于第一和第二区域生成对象的图像。

6. 发明授权

US08472683B2 Motion correction in tomographic images 有权
标题翻译：断层图像中的运动校正
公开(公告)号：US08472683B2
公开(公告)日：2013-06-25
申请号：US12550773
申请日：2009-08-31
申请人： Ravindra Mohan Manjeshwar , Kris Filip Johan Jules Thielemans , Evren Asma
发明人： Ravindra Mohan Manjeshwar , Kris Filip Johan Jules Thielemans , Evren Asma
IPC分类号： G06K9/00
CPC分类号： A61B6/032 , A61B5/7285 , A61B6/037 , A61B6/5235 , A61B6/5247 , A61B6/541 , G06T5/003 , G06T7/30 , G06T7/33 , G06T11/005 , G06T11/008 , G06T2207/10081 , G06T2207/10084 , G06T2207/10104 , G06T2207/20201 , G06T2207/20221 , G06T2207/30004 , G06T2207/30048 , G06T2207/30061 , G06T2211/412
摘要： An imaging method comprises reconstructing gated emission tomography images for a region of interest, adjusting a mismatch between the gated emission tomography images and a computed tomography image of the region of interest, registering the gated emission tomography images, and combining the registered gated emission tomography images to generate motion corrected images.
摘要翻译：一种成像方法包括重建关注区域的门控发射断层摄影图像，调整门控发射断层摄影图像与感兴趣区域的计算机断层摄影图像之间的失配，登记门控发射断层摄影图像，以及组合登记的门控发射断层摄影图像以产生运动校正图像。

7. 发明授权

US08355551B2 Method and apparatus for reducing image artifacts 有权
标题翻译：减少图像伪影的方法和装置
公开(公告)号：US08355551B2
公开(公告)日：2013-01-15
申请号：US12394772
申请日：2009-02-27
申请人： Kris Filip Johan Jules Thielemans , Scott David Wollenweber , Alexander Ganin , Anja Brau , Floribertus P. M. Heukensfeldt Jansen , Evren Asma , Rakesh Mullick , Ravindra Mohan Manjeshwar , Ajit Shankaranarayanan
发明人： Kris Filip Johan Jules Thielemans , Scott David Wollenweber , Alexander Ganin , Anja Brau , Floribertus P. M. Heukensfeldt Jansen , Evren Asma , Rakesh Mullick , Ravindra Mohan Manjeshwar , Ajit Shankaranarayanan
IPC分类号： G06K9/00
CPC分类号： G06T11/005 , G06T2211/412
摘要： A method and apparatus are provided for reducing motion related imaging artifacts. The method includes determining an internal motion for of two regions of the object, each region having a different level of motion, scanning the first region using a first scan protocol based on the motion, scanning a second region using a second different scan protocol based on the motion, and generating an image of the object based on the first and second regions.
摘要翻译：提供了一种用于减少运动相关成像伪影的方法和装置。该方法包括确定对象的两个区域的内部运动，每个区域具有不同的运动水平，基于运动使用第一扫描协议扫描第一区域，使用基于第二扫描协议的第二不同扫描协议扫描第二区域运动，以及基于第一和第二区域生成对象的图像。

8. 发明申请

US20100046821A1 MOTION CORRECTION IN TOMOGRAPHIC IMAGES 有权
标题翻译：图像图像中的运动校正
公开(公告)号：US20100046821A1
公开(公告)日：2010-02-25
申请号：US12550773
申请日：2009-08-31
申请人： Ravindra Mohan Manjeshwar , Kris Filip Johan Jules Thielemans , Evren Asma
发明人： Ravindra Mohan Manjeshwar , Kris Filip Johan Jules Thielemans , Evren Asma
IPC分类号： G06K9/00
CPC分类号： A61B6/032 , A61B5/7285 , A61B6/037 , A61B6/5235 , A61B6/5247 , A61B6/541 , G06T5/003 , G06T7/30 , G06T7/33 , G06T11/005 , G06T11/008 , G06T2207/10081 , G06T2207/10084 , G06T2207/10104 , G06T2207/20201 , G06T2207/20221 , G06T2207/30004 , G06T2207/30048 , G06T2207/30061 , G06T2211/412
摘要： An imaging method comprises reconstructing gated emission tomography images for a region of interest, adjusting a mismatch between the gated emission tomography images and a computed tomography image of the region of interest, registering the gated emission tomography images, and combining the registered gated emission tomography images to generate motion corrected images.
摘要翻译：一种成像方法包括重建关注区域的门控发射断层摄影图像，调整门控发射断层摄影图像与感兴趣区域的计算机断层摄影图像之间的失配，登记门控发射断层摄影图像，以及组合登记的门控发射断层摄影图像以产生运动校正图像。

9. 发明授权

US08903152B2 Methods and systems for enhanced tomographic imaging 有权
标题翻译：增强断层成像的方法和系统
公开(公告)号：US08903152B2
公开(公告)日：2014-12-02
申请号：US13539028
申请日：2012-06-29
申请人： Evren Asma , Ravindra Mohan Manjeshwar , Steven Gerard Ross , Sangtae Ahn , David Erik Chevalier
发明人： Evren Asma , Ravindra Mohan Manjeshwar , Steven Gerard Ross , Sangtae Ahn , David Erik Chevalier
IPC分类号： G06K9/00
CPC分类号： G06T11/006 , G06T2211/424
摘要： Embodiments of methods, systems and non-transitory computer readable media for tomographic imaging are presented. 3D TOF projection data is processed to generate corresponding data in a designated format that allows for computationally cheaper image reconstruction than the 3D TOF projection data. Further, one or more preliminary images are reconstructed from the processed data using a particular image reconstruction technique for one or more iterations. To that end, one or more imaging parameters are iteratively varied every one or more iterations. The imaging parameters, for example, include the designated format, the image reconstruction technique and one or more image quality characteristics. One or more intermediate images are reconstructed from the one or more preliminary images using the iteratively varying imaging parameters. Further, 3D TOF images having the one or more designated image quality characteristics are generated using the one or more intermediate images and the iteratively varying imaging parameters.
摘要翻译：提出了用于断层成像的方法，系统和非暂时计算机可读介质的实施例。 3D TOF投影数据被处理以产生指定格式的相应数据，这允许比3D TOF投影数据更便宜的图像重建。此外，使用用于一次或多次迭代的特定图像重建技术，从经处理的数据重建一个或多个预备图像。为此，每一次或多次迭代迭代地改变一个或多个成像参数。成像参数例如包括指定格式，图像重建技术和一个或多个图像质量特性。使用迭代变化的成像参数，从一个或多个初步图像重建一个或多个中间图像。此外，使用一个或多个中间图像和迭代变化的成像参数来生成具有一个或多个指定图像质量特性的3D TOF图像。

10. 发明申请

US20140003689A1 METHODS AND SYSTEMS FOR ENHANCED TOMOGRAPHIC IMAGING 有权
标题翻译：用于增强图像成像的方法和系统
公开(公告)号：US20140003689A1
公开(公告)日：2014-01-02
申请号：US13539028
申请日：2012-06-29
申请人： Evren Asma , Ravindra Mohan Manjeshwar , Steven Gerard Ross , Sangtae Ahn , David Erik Chevalier
发明人： Evren Asma , Ravindra Mohan Manjeshwar , Steven Gerard Ross , Sangtae Ahn , David Erik Chevalier
IPC分类号： G06K9/00
CPC分类号： G06T11/006 , G06T2211/424
摘要： Embodiments of methods, systems and non-transitory computer readable media for tomographic imaging are presented. 3D TOF projection data is processed to generate corresponding data in a designated format that allows for computationally cheaper image reconstruction than the 3D TOF projection data. Further, one or more preliminary images are reconstructed from the processed data using a particular image reconstruction technique for one or more iterations. To that end, one or more imaging parameters are iteratively varied every one or more iterations. The imaging parameters, for example, include the designated format, the image reconstruction technique and one or more image quality characteristics. One or more intermediate images are reconstructed from the one or more preliminary images using the iteratively varying imaging parameters. Further, 3D TOF images having the one or more designated image quality characteristics are generated using the one or more intermediate images and the iteratively varying imaging parameters.
摘要翻译：提出了用于断层成像的方法，系统和非暂时计算机可读介质的实施例。 3D TOF投影数据被处理以产生指定格式的相应数据，这允许比3D TOF投影数据更便宜的图像重建。此外，使用用于一次或多次迭代的特定图像重建技术，从经处理的数据重建一个或多个预备图像。为此，每一次或多次迭代迭代地改变一个或多个成像参数。成像参数例如包括指定格式，图像重建技术和一个或多个图像质量特性。使用迭代变化的成像参数，从一个或多个初步图像重建一个或多个中间图像。此外，使用一个或多个中间图像和迭代变化的成像参数来生成具有一个或多个指定图像质量特性的3D TOF图像。

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