专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US07254259B2 Methods and apparatus for truncation compensation 失效
标题翻译：截肢补偿的方法和装置
公开(公告)号：US07254259B2
公开(公告)日：2007-08-07
申请号：US10615411
申请日：2003-07-03
申请人： Jiang Hsieh , Brian Grekowicz , Edward Henry Chao , Scott Matt McOlash , Amy Lynn Horst
发明人： Jiang Hsieh , Brian Grekowicz , Edward Henry Chao , Scott Matt McOlash , Amy Lynn Horst
IPC分类号： G06K9/00
CPC分类号： A61B6/032 , A61B6/583
摘要： A method includes calculating a sum of all samples at each projection view of a scan of an object, determining a maximum value of the calculated sums, averaging a plurality of samples m at a projection view index k when the sum of all samples at index k is less than a predetermined percentage of the maximum value, comparing the average to a threshold t, determining the projection truncated when the average is greater than t, and determining the projection not truncated when the average is not greater than t.
摘要翻译：一种方法包括：计算对象扫描的每个投影视图处的所有样本的总和，确定所计算出的和的最大值，在索引k处的所有样本的和之间以投影视图索引k平均多个样本m 小于最大值的预定百分比，将平均值与阈值t进行比较，确定当平均值大于t时截断的投影，以及当平均值不大于t时确定投影未被截断。

2. 发明授权

US06856666B2 Multi modality imaging methods and apparatus 失效
标题翻译：多模态成像方法和装置
公开(公告)号：US06856666B2
公开(公告)日：2005-02-15
申请号：US10428906
申请日：2003-05-02
申请人： Albert Henry Roger Lonn , Jiang Hsieh , Charles William Stearns , Edward Henry Chao , Brian Grekowicz
发明人： Albert Henry Roger Lonn , Jiang Hsieh , Charles William Stearns , Edward Henry Chao , Brian Grekowicz
IPC分类号： A61B6/03
CPC分类号： A61B6/037 , A61B6/027 , A61B6/032 , A61B6/5235 , A61B6/583 , Y10S378/901
摘要： A method includes scanning an object in a first modality having a first field of view to obtain first modality data including fully sampled field of view data and partially sampled field of view data. The method also includes scanning the object in a second modality having a second field of view larger than the first field of view of obtain second modality data, and reconstructing an image of the object using the second modality data and the first modality partially sampled field of view data.
摘要翻译：一种方法包括以具有第一视野的第一模态扫描对象以获得包括完全采样的视场数据和部分采样的视野数据的第一模态数据。该方法还包括以具有大于获得第二模态数据的第一视场的第二视场的第二模式扫描对象，并且使用第二模态数据和第一模态部分采样场来重建对象的图像查看数据。

3. 发明授权

US06944260B2 Methods and apparatus for artifact reduction in computed tomography imaging systems 有权
标题翻译：计算机断层成像系统中神经减少的方法和装置
公开(公告)号：US06944260B2
公开(公告)日：2005-09-13
申请号：US10705357
申请日：2003-11-11
申请人： Jiang Hsieh , Edward Henry Chao , Brian James Grekowicz , Jean-Baptiste Thibault
发明人： Jiang Hsieh , Edward Henry Chao , Brian James Grekowicz , Jean-Baptiste Thibault
IPC分类号： A61B6/03 , G06T11/00
CPC分类号： A61B6/032 , A61B6/027 , A61B6/583 , G06T11/005 , G06T11/006 , Y10S378/901
摘要： Some configurations of the present invention provide a method for reconstructing an image of an object of a computed tomographic imaging system having a detector array and a radiation source, wherein an arc of the detector array is not concentric to a focal spot of the radiation source. The method includes scanning the object with the computed tomographic imaging system to obtain a fan beam dataset, rebinning the fan beam dataset into a set of parallel datasets; and reconstructing an image utilizing the set of parallel datasets.
摘要翻译：本发明的一些配置提供了一种用于重建具有检测器阵列和辐射源的计算机断层成像系统的物体的图像的方法，其中检测器阵列的弧不与辐射源的焦斑同心。该方法包括用计算机断层成像系统扫描物体以获得风扇光束数据集，将风扇光束数据集重新组合成一组并行数据集; 并使用该组并行数据集重构图像。

4. 发明授权

US07257187B2 Methods and apparatus for calibrating CT x-ray beam tracking loop 失效
标题翻译：用于校准CT X射线束跟踪循环的方法和装置
公开(公告)号：US07257187B2
公开(公告)日：2007-08-14
申请号：US11124331
申请日：2005-05-06
申请人： Edward Henry Chao , Thomas Louis Toth , Maryam Shaukat Hameed
发明人： Edward Henry Chao , Thomas Louis Toth , Maryam Shaukat Hameed
IPC分类号： H05G1/30
CPC分类号： A61B6/585 , A61B6/4275
摘要： A method for determining tracking control parameters for positioning an x-ray beam of a computed tomography imaging system, the imaging system including a movable collimator positionable in steps and a detector array including a plurality of detector elements arranged in rows and channels, the rows extending from a detector A-side to a detector B-side. The method includes determining a detector A-side and a detector B-side target beam penumbra position, computing a plurality of Z-ratio curves corresponding to different detector rows and detector channels, and comparing the Z-ratio curves at the detector A-side and detector B-side target beam positions to determine the optimal Z-ratio curve and corresponding detector channels and rows for controlling the X-ray beam positioning.
摘要翻译：一种用于确定用于定位计算机断层摄影成像系统的x射线束的跟踪控制参数的方法，所述成像系统包括可定位成可移动的准直器和包括排列成行和通道的多个检测器元件的检测器阵列，所述行延伸从检测器A侧到检测器B侧。该方法包括确定检测器A侧和检测器B侧目标束半影位置，计算对应于不同检测器行和检测器通道的多个Z比曲线，以及比较检测器A侧的Z比曲线和检测器B侧目标光束位置，以确定最佳Z比率曲线以及用于控制X射线束定位的相应检测器通道和行。

5. 发明授权

US07249886B1 Method and apparatus for measuring effective focal spot parameters of an X-ray source 有权
标题翻译：用于测量X射线源的有效焦点参数的方法和装置
公开(公告)号：US07249886B1
公开(公告)日：2007-07-31
申请号：US11443239
申请日：2006-05-30
申请人： Edward Henry Chao , Bruce Matthew Dunham
发明人： Edward Henry Chao , Bruce Matthew Dunham
IPC分类号： G01D18/00
CPC分类号： A61B6/06 , A61B6/037
摘要： A method for measuring focal spot shape of a radiation beam from a radiation source includes collimating the radiation beam using a collimator having a well-defined edge, measuring an intensity profile of the collimated radiation beam, determining a function of the measured intensity profile, and determining a metric of the of the focal spot using the determined function of the measured intensity profile.
摘要翻译：用于测量来自辐射源的辐射束的焦点形状的方法包括使用具有明确界定的边缘的准直仪准直辐射束，测量准直辐射束的强度分布，确定测量的强度分布的函数，以及使用确定的测量的强度分布函数来确定焦点的度量。

6. 发明授权

US06873675B2 Multi-sector back-off logic algorithm for obtaining optimal slice-sensitive computed tomography profiles 失效
标题翻译：用于获得最佳切片敏感计算机断层摄影概况的多扇区退避逻辑算法
公开(公告)号：US06873675B2
公开(公告)日：2005-03-29
申请号：US10323256
申请日：2002-12-18
申请人： Rajendra Kurady , Darin Okerlund , Mark Woodford , Edward Henry Chao
发明人： Rajendra Kurady , Darin Okerlund , Mark Woodford , Edward Henry Chao
IPC分类号： A61B6/00 , G06T11/00 , G21K1/12 , G01N23/00
CPC分类号： G06T11/005 , A61B6/032 , A61B6/503 , A61B6/541 , A61B8/5284 , G06T2211/412 , Y10S378/901
摘要： A multi-sector back-off logic algorithm for obtaining optimal slice-sensitive computed tomography (“CT”) profiles. The systems and methods of the present invention improving the temporal resolution of a CT system by checking for Z location errors between sectors and automatically backing-off to an alternative multi-sector algorithm when necessary (i.e., selecting an optimized maximum number of sectors to reconstruct), providing less Z location error. Based upon this Z location error, the systems and methods of the present invention also calculating the maximum number of sectors that should be used for reconstruction “on-the-fly” (i.e., on a per image basis across an entire series of images). These systems and methods utilizing the Recommended Protocol for Cardiac Reconstruction Algorithms.
摘要翻译：用于获得最佳切片敏感计算机断层扫描（“CT”）轮廓的多扇区退避逻辑算法。本发明的系统和方法通过检查扇区之间的Z位置误差来提高CT系统的时间分辨率，并且在必要时自动地退回到替代的多扇区算法（即，选择优化的最大数量的扇区以重建），提供较少的Z位置错误。基于该Z位置错误，本发明的系统和方法还计算应该用于“即时”重建的扇区的最大数量（即，跨整个图像的每个图像）。这些系统和方法利用推荐的心脏重建算法协议。

7. 发明授权

US07111985B2 Method and system for measuring table sag 有权
标题翻译：测量台下垂的方法和系统
公开(公告)号：US07111985B2
公开(公告)日：2006-09-26
申请号：US10982325
申请日：2004-11-04
申请人： Edward Henry Chao , Wolfgang Just , Ariel Friedlander
发明人： Edward Henry Chao , Wolfgang Just , Ariel Friedlander
IPC分类号： G01D18/00
CPC分类号： A61B6/5276 , A61B6/032 , A61B6/0457 , A61B6/583
摘要： A method for measuring table sag of a table may include utilizing images of an unloaded table and a loaded table, plotting pixel values for a range of pixels for each image within a particular column, identifying a pixel within each plot that has a highest pixel value, calculating a difference between the identified pixel row numbers, and converting the difference into a measurement of table sag. A storage medium encoded with machine-readable computer program code for measuring table sag of a table may include instructions for causing a computer to implement the method. A computer for use in an imaging system may utilize digital images for the measurement of table sag and an imaging system may include such a computer.
摘要翻译：用于测量表的凹陷的方法可以包括利用未加载的表和加载表的图像，绘制特定列内的每个图像的像素范围的像素值，识别每个图中具有最高像素值的像素计算所识别的像素行数之间的差，并将该差转换为表下垂的测量。编码有用于测量表的表下垂的机器可读计算机程序代码的存储介质可以包括用于使计算机实现该方法的指令。用于成像系统的计算机可以利用数字图像来测量台下垂，并且成像系统可以包括这样的计算机。

8. 发明授权

US07012986B1 Method and system for calibrating a computed tomography system 失效
标题翻译：用于校准计算机断层摄影系统的方法和系统
公开(公告)号：US07012986B1
公开(公告)日：2006-03-14
申请号：US10993555
申请日：2004-11-19
申请人： Edward Henry Chao , Eric Matthew Plate , Michael Ronald Miller , Tara Janon Mahan , Thomas John Myers
发明人： Edward Henry Chao , Eric Matthew Plate , Michael Ronald Miller , Tara Janon Mahan , Thomas John Myers
IPC分类号： A61B6/00
CPC分类号： A61B6/583 , A61B6/032 , A61B6/037 , A61B6/5276
摘要： Methods and systems for calibrating a Computed Tomography (CT) system are provided. The method includes performing a CT scan of an object having a substantially flat surface using the CT system. The method further includes determining an offset angle for the CT system based on an image of the substantially flat surface of the scanned object.
摘要翻译：提供了用于校准计算机断层扫描（CT）系统的方法和系统。该方法包括使用CT系统对具有基本平坦表面的物体进行CT扫描。该方法还包括基于扫描对象的基本上平坦的表面的图像来确定CT系统的偏移角。

9. 再颁专利

USRE41740E1 Multi-sector back-off logic algorithm for obtaining optimal slice-sensitive computed tomography profiles 失效
标题翻译：用于获得最佳切片敏感计算机断层摄影概况的多扇区退避逻辑算法
公开(公告)号：USRE41740E1
公开(公告)日：2010-09-21
申请号：US11706836
申请日：2007-02-14
申请人： Darin Robert Okerlund , Mark Edward Woodford , Edward Henry Chao , Rajendra Kurady
发明人： Darin Robert Okerlund , Mark Edward Woodford , Edward Henry Chao , Rajendra Kurady
IPC分类号： A61B6/00
CPC分类号： G06T11/005 , A61B6/032 , A61B6/503 , A61B6/541 , A61B8/5284 , G06T2211/412 , Y10S378/901
摘要： A multi-sector back-off logic algorithm for obtaining optimal slice-sensitive computed tomography (“CT”) profiles. The systems and methods of the present invention improving the temporal resolution of a CT system by checking for Z location errors between sectors and automatically backing-off to an alternative multi-sector algorithm when necessary (i.e., selecting an optimized maximum number of sectors to reconstruct), providing less Z location error. Based upon this Z location error, the systems and methods of the present invention also calculating the maximum number of sectors that should be used for reconstruction “on-the-fly” (i.e., on a per image basis across an entire series of images). These systems and methods utilizing the Recommended Protocol for Cardiac Reconstruction Algorithms.
摘要翻译：用于获得最佳切片敏感计算机断层扫描（“CT”）轮廓的多扇区退避逻辑算法。本发明的系统和方法通过检查扇区之间的Z位置误差来提高CT系统的时间分辨率，并且在必要时自动地退回到替代的多扇区算法（即，选择优化的最大数量的扇区以重建），提供较少的Z位置错误。基于该Z位置错误，本发明的系统和方法还计算应该用于“即时”重建的扇区的最大数量（即，跨整个图像的每个图像）。这些系统和方法利用推荐的心脏重建算法协议。

10. 发明授权

US07399119B2 Method and system for measuring an alignment of a detector 有权
标题翻译：用于测量检测器对准的方法和系统
公开(公告)号：US07399119B2
公开(公告)日：2008-07-15
申请号：US11230001
申请日：2005-09-19
申请人： Edward Henry Chao , Thomas Louis Toth , Tanvi Kachhy , Bruce Matthew Dunham , Abdelaziz Ikhlef
发明人： Edward Henry Chao , Thomas Louis Toth , Tanvi Kachhy , Bruce Matthew Dunham , Abdelaziz Ikhlef
IPC分类号： A61B6/08 , G21K1/02 , G21K1/12
CPC分类号： A61B6/587 , A61B6/032 , A61B6/06 , Y10S378/901
摘要： A method for measuring an alignment of a detector is described. The method includes determining, by a processor, the alignment of the detector with respect to a collimated radiation beam. The determination of the alignment is based on a plurality of signals from a first cell of the detector and a second cell of the detector, and is independent of a shape of the collimated radiation beam.
摘要翻译：描述了用于测量检测器的对准的方法。该方法包括由处理器确定检测器相对于准直辐射束的对准。对准的确定基于来自检测器的第一单元和检测器的第二单元的多个信号，并且独立于准直辐射束的形状。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式