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1. 发明授权

US06765983B2 Method and apparatus for imaging a region of dynamic tissue 失效
标题翻译：用于成像动态组织区域的方法和装置
公开(公告)号：US06765983B2
公开(公告)日：2004-07-20
申请号：US10318909
申请日：2002-12-13
申请人： Weizhong Yan , Peter Michael Edic , Maria Iatrou , Kai Frank Goebel , Erdogan Cesmeli
发明人： Weizhong Yan , Peter Michael Edic , Maria Iatrou , Kai Frank Goebel , Erdogan Cesmeli
IPC分类号： A61B603
CPC分类号： A61B6/469 , A61B6/032 , A61B6/5264 , A61B6/541 , A61B6/563 , Y10S378/901
摘要： A technique is provided for reducing motion-related artifacts present in CT images attributable to the dynamic nature of the imaged tissue or the time-varying concentration of a contrast agent. A region of interest that encompasses a structure of diagnostic significance is selected. For projections acquired by the various rows of detectors in a multi-slice CT imaging system, the portions of the projections attributable to the projection of the region of interest are averaged for each view angle. The projections containing these averaged values are then combined with the projections which do not encompass the region of interest. The combined projection set may be reconstructed to form a CT image of the dynamic tissue. In addition, a smoothing step may be performed to interpolate projection values around the region of interest to smooth the visual transition to the unaveraged portions of the image.
摘要翻译：提供了一种技术，用于减少归因于成像组织的动态特性或造影剂的时变浓度的CT图像中存在的运动相关假象。选择包含诊断意义的结构的感兴趣区域。对于由多层CT成像系统中的各行检测器获取的投影，可以对于每个视角对平均感兴趣区域的投影的投影的部分进行平均。然后将包含这些平均值的投影与不包含感兴趣区域的投影组合。可以重组组合投影集以形成动态组织的CT图像。此外，可以执行平滑步骤来内插围绕感兴趣区域的投影值，以平滑对图像的未平面部分的视觉转换。

2. 发明授权

US07382852B2 Method and apparatus for correcting motion in image reconstruction 有权
标题翻译：用于校正图像重建中运动的方法和装置
公开(公告)号：US07382852B2
公开(公告)日：2008-06-03
申请号：US11804861
申请日：2007-05-21
申请人： Peter Michael Edic , Maria Iatrou , Erdogan Cesmeli , Bruno De Man , Samit Basu
发明人： Peter Michael Edic , Maria Iatrou , Erdogan Cesmeli , Bruno De Man , Samit Basu
IPC分类号： G01N23/00
CPC分类号： A61B6/541 , A61B6/032 , A61B6/4035 , A61B6/405 , A61B6/4241 , A61B6/482 , A61B6/503 , A61B6/563 , G01N23/046 , G01N2223/419 , G01N2223/612 , G06T5/003 , G06T5/50 , G06T7/246 , G06T11/005 , G06T2207/10081 , G06T2207/30004 , G06T2211/408 , G06T2211/412 , Y10S378/901
摘要： One or more techniques are provided for adapting a reconstruction process to account for the motion of an imaged object or organ, such as the heart. In particular, projection data of the moving object or organ is acquired using a slowly rotating CT gantry. Motion data may be determined from the projection data or from images reconstructed from the projection data. The motion data may be used to reconstruct motion-corrected images from the projection data. The motion-corrected images may be associated to form motion-corrected volume renderings.
摘要翻译：提供一种或多种技术用于调整重建过程以解决成像对象或器官（例如心脏）的运动。特别地，使用缓慢旋转的CT台架来获取移动物体或器官的投影数据。可以从投影数据或从投影数据重建的图像确定运动数据。运动数据可用于从投影数据重建运动校正图像。可以将运动校正的图像相关联以形成运动校正的体积渲染。

3. 发明授权

US07221728B2 Method and apparatus for correcting motion in image reconstruction 有权
标题翻译：用于校正图像重建中运动的方法和装置
公开(公告)号：US07221728B2
公开(公告)日：2007-05-22
申请号：US10625361
申请日：2003-07-23
申请人： Peter Michael Edic , Maria Iatrou , Erdogan Cesmeli , Bruno De Man , Samit Basu
发明人： Peter Michael Edic , Maria Iatrou , Erdogan Cesmeli , Bruno De Man , Samit Basu
IPC分类号： G01N23/04
CPC分类号： A61B6/541 , A61B6/032 , A61B6/4035 , A61B6/405 , A61B6/4241 , A61B6/482 , A61B6/503 , A61B6/563 , G01N23/046 , G01N2223/419 , G01N2223/612 , G06T5/003 , G06T5/50 , G06T7/246 , G06T11/005 , G06T2207/10081 , G06T2207/30004 , G06T2211/408 , G06T2211/412 , Y10S378/901
摘要： One or more techniques are provided for adapting a reconstruction process to account for the motion of an imaged object or organ, such as the heart. In particular, projection data of the moving object or organ is acquired using a slowly rotating CT gantry. Motion data may be determined from the projection data or from images reconstructed from the projection data. The motion data may be used to reconstruct motion-corrected images from the projection data. The motion-corrected images may be associated to form motion-corrected volume renderings.
摘要翻译：提供一种或多种技术用于调整重建过程以解决成像对象或器官（例如心脏）的运动。特别地，使用缓慢旋转的CT台架来获取移动物体或器官的投影数据。可以从投影数据或从投影数据重建的图像确定运动数据。运动数据可用于从投影数据重建运动校正图像。可以将运动校正的图像相关联以形成运动校正的体积渲染。

4. 发明授权

US06956926B2 Method and apparatus for selecting a reconstruction projection set 失效
标题翻译：用于选择重建投影集的方法和装置
公开(公告)号：US06956926B2
公开(公告)日：2005-10-18
申请号：US10335826
申请日：2002-12-31
申请人： Erdogan Cesmeli , Peter Michael Edic , Maria Iatrou
发明人： Erdogan Cesmeli , Peter Michael Edic , Maria Iatrou
IPC分类号： G06T11/00 , A61B6/00
CPC分类号： G06T11/005 , G06T2211/412
摘要： A technique is provided for improving consistency between slabs in a reconstructed CT image. Candidate sectors associated with an image slab are determined. If the sectors contain sufficient information to reconstruct the image slab, the sector which minimizes inconsistency with projection data for adjacent image slabs is selected for reconstruction. If the sectors do not contain sufficient information to reconstruct the slab, sectors are merged together until a merge group contains sufficient information. The merge group which minimizes inconsistency with projection data for adjacent image slabs is selected for image reconstruction. The selected sectors or merge groups are then reconstructed with the resulting image slabs comprising a reconstructed image with improved consistency between image slabs.
摘要翻译：提供了一种用于改善重建CT图像中的平板之间的一致性的技术。确定与图像板相关联的候选扇区。如果扇区含有足够的信息来重建图像板，则选择最小化与相邻图像板的投影数据不一致的扇区用于重建。如果扇区不包含足够的信息来重建slab，则扇区合并在一起，直到合并组包含足够的信息。选择最小化与相邻图像板的投影数据不一致的合并组用于图像重建。然后使用包括具有改进的图像板之间的一致性的重建图像的所得到的图像板来重建所选择的扇区或合并组。

5. 发明授权

US06879656B2 Method and apparatus for deriving motion information from projection data 失效
标题翻译：从投影数据导出运动信息的方法和装置
公开(公告)号：US06879656B2
公开(公告)日：2005-04-12
申请号：US10624342
申请日：2003-07-22
申请人： Erdogan Cesmeli , Peter Michael Edic
发明人： Erdogan Cesmeli , Peter Michael Edic
IPC分类号： A61B6/00 , A61B6/03 , G01N23/04 , G06T5/00 , G06T5/50 , G06T7/20 , G06T11/00
CPC分类号： A61B6/541 , A61B6/032 , A61B6/503 , G01N23/046 , G01N2223/419 , G01N2223/612 , G06T7/246 , G06T11/005 , G06T2211/412 , Y10S378/901
摘要： One or more techniques are provided for deriving motion data from a set of CT projection data. The techniques calculate moments associated with consistency conditions for the projection data to derive motion data from the projection data. One aspect of the present techniques uses the calculated moments to select projection data sets based upon the presence or absence of motion between the projection data sets. Periodicity information may then be extracted from the selected projection data sets. Another aspect of the present techniques uses projection data acquired by a slowly rotating volumetric CT gantry to allow the separation of a corruptive signal from a desired motion signal. Once separated, the desired motion signal may be used to identify projection data at a desired phase of motion.
摘要翻译：提供一种或多种技术来从一组CT投影数据中导出运动数据。该技术计算与投影数据的一致性条件相关联的时刻，以从投影数据中导出运动数据。本技术的一个方面使用计算的时刻根据投影数据集之间的运动的存在或不存在来选择投影数据集。然后可以从所选择的投影数据集中提取周期性信息。本技术的另一方面使用通过缓慢旋转的体积CT台架获取的投影数据，以允许将腐蚀性信号与期望的运动信号分离。一旦分离，期望的运动信号可以用于在期望的运动阶段识别投影数据。

6. 发明申请

US20070217568A1 Method and apparatus for correcting motion in image reconstruction 有权
公开(公告)号：US20070217568A1
公开(公告)日：2007-09-20
申请号：US11804861
申请日：2007-05-21
申请人： Peter Edic , Maria Iatrou , Erdogan Cesmeli , Bruno Man , Samit Basu
发明人： Peter Edic , Maria Iatrou , Erdogan Cesmeli , Bruno Man , Samit Basu
IPC分类号： G01N23/00
CPC分类号： A61B6/541 , A61B6/032 , A61B6/4035 , A61B6/405 , A61B6/4241 , A61B6/482 , A61B6/503 , A61B6/563 , G01N23/046 , G01N2223/419 , G01N2223/612 , G06T5/003 , G06T5/50 , G06T7/246 , G06T11/005 , G06T2207/10081 , G06T2207/30004 , G06T2211/408 , G06T2211/412 , Y10S378/901
摘要： One or more techniques are provided for adapting a reconstruction process to account for the motion of an imaged object or organ, such as the heart. In particular, projection data of the moving object or organ is acquired using a slowly rotating CT gantry. Motion data may be determined from the projection data or from images reconstructed from the projection data. The motion data may be used to reconstruct motion-corrected images from the projection data. The motion-corrected images may be associated to form motion-corrected volume renderings.

7. 发明授权

US06438196B1 EKG driven CT image reconstruction for cardiac imaging 有权
标题翻译：用于心脏成像的EKG驱动CT图像重建
公开(公告)号：US06438196B1
公开(公告)日：2002-08-20
申请号：US09681942
申请日：2001-06-28
申请人： Erdogan Cesmeli
发明人： Erdogan Cesmeli
IPC分类号： A61B600
CPC分类号： A61B6/541 , A61B5/0456 , A61B5/726 , A61B6/482
摘要： A method for reconstructing an image of a beating heart includes decomposing at least one electrocardiogram (EKG) RR interval, tagging projection data with cardiac phase information based on the decomposition, and reconstructing an image using the tagged data.
摘要翻译：用于重建跳动心脏的图像的方法包括：分解至少一个心电图（EKG）RR间期，基于分解标记具有心脏相位信息的投影数据，以及使用标记数据重建图像。

8. 发明授权

US06522712B1 Reconstruction of computed tomographic images using interpolation between projection views 有权
标题翻译：使用投影视图之间的内插重建计算机断层图像
公开(公告)号：US06522712B1
公开(公告)日：2003-02-18
申请号：US09656977
申请日：2000-09-07
申请人： Mehmet Yavuz , Erdogan Cesmeli
发明人： Mehmet Yavuz , Erdogan Cesmeli
IPC分类号： A61B603
CPC分类号： G06T11/005 , A61B6/027 , A61B6/508 , A61B6/541 , G06T2211/412
摘要： An approach to image reconstruction provides enhanced image quality from limited projection data, particularly when the imaging object (or a portion of interest) is in motion during the tomographic projection data collection process. An interpolated projection view is generated from existing projection views between which an additional relationship exists by virtue of being respectively based on data collected in different data acquisition cycles. The present invention provides a technique for combining the existing projection views into an interpolated projection view by interpolation in time. A further aspect of the invention provides an approach for selecting a reconstruction range for projection data representing the imaged object and covering a plurality of projection ranges.
摘要翻译：图像重建的方法提供了来自有限投影数据的增强图像质量，特别是当在断层摄影投影数据收集过程期间成像对象（或感兴趣的部分）运动时。由现有的投影视图产生内插的投影视图，其间由于分别基于在不同数据采集周期中收集的数据而存在附加关系。本发明提供了一种通过时间插值将现有投影视图组合成内插投影视图的技术。本发明的另一方面提供了一种用于选择用于表示成像对象并覆盖多个投影范围的投影数据的重建范围的方法。

9. 发明授权

US06718004B2 Methods and apparatus for coronary-specific imaging reconstruction 失效
标题翻译：用于冠状动脉特异性成像重建的方法和装置
公开(公告)号：US06718004B2
公开(公告)日：2004-04-06
申请号：US10064068
申请日：2002-06-06
申请人： Erdogan Cesmeli
发明人： Erdogan Cesmeli
IPC分类号： G01N2300
CPC分类号： A61B6/504 , A61B5/0456 , A61B6/032 , A61B6/541
摘要： A method for imaging a desired coronary artery or desired portion thereof is provided. The method includes reconstructing a first 2D image of a first desired coronary artery branch segment utilizing a first projection dataset acquired during a first desired cardiac phase of a plurality of cardiac cycles to reduce motion artifacts of the first desired coronary artery branch segment, reconstructing a second 2D image of a second desired coronary artery branch segment utilizing a second projection dataset acquired during a second desired cardiac phase of the plurality of cardiac cycles to reduce motion artifacts of the second desired coronary artery branch segment, and reconstructing at least one 3D image of the coronary artery utilizing the first 2D image and the second 2D image.
摘要翻译：提供了一种用于对期望的冠状动脉或其所需部分进行成像的方法。该方法包括利用在多个心动周期的第一期望的心脏期期间获取的第一投影数据集来重建第一期望冠状动脉分支段的第一2D图像，以减少第一期望冠状动脉分支段的运动伪影，重建第二个使用在所述多个心动周期的第二期望心动期期间获取的第二投影数据集的第二所需冠状动脉分支段的2D图像，以减少所述第二期望冠状动脉分支段的运动伪影，以及重构所述第二所需冠状动脉分支段的至少一个3D图像冠状动脉利用第一2D图像和第二2D图像。

10. 发明授权

US06434215B1 EKG-less cardiac image reconstruction 有权
标题翻译：无EKG心脏图像重建
公开(公告)号：US06434215B1
公开(公告)日：2002-08-13
申请号：US09681943
申请日：2001-06-28
申请人： Erdogan Cesmeli
发明人： Erdogan Cesmeli
IPC分类号： A61B600
CPC分类号： A61B6/541 , A61B6/027 , A61B6/032 , A61B6/5217
摘要： A method for reconstructing an image of a beating heart in vivo is described. The method includes acquiring projection data for at least one z-location within a projection space, determining peaks in first order spatial moments for the projection space using the projection data, and reconstructing the image utilizing peaks in the first order spatial moments.
摘要翻译：描述了一种用于在体内重建搏动心脏的图像的方法。该方法包括获取投影空间内的至少一个z位置的投影数据，使用投影数据确定投影空间的一阶空间力矩中的峰值，以及利用第一阶空间力矩中的峰值来重建图像。

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