专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

41. 发明申请

US20100207629A1 Method For Image Reconstruction From Undersampled Medical Imaging Data 有权
标题翻译：从未采样的医学成像数据进行图像重建的方法
公开(公告)号：US20100207629A1
公开(公告)日：2010-08-19
申请号：US12705818
申请日：2010-02-15
申请人： Joshua D Trzasko , Armando Manduca
发明人： Joshua D Trzasko , Armando Manduca
IPC分类号： G01R33/48
CPC分类号： G01R33/561 , G01R33/5608 , G01R33/5611
摘要： A method for image reconstruction that utilizes a generalization of compressed sensing is provided. More particularly, a method for homotopic l0 minimization is provided, in which a series of subproblems that asymptotically approach a solution to the l0 minimization are iteratively solved. These subproblems include utilizing concave metric prior functionals in the traditional compressed sensing framework. Substantially undersampled image data is acquired from a subject, for example, with a medical imaging system, such as a magnetic resonance imaging (“MRI”) system or a computed tomography (“CT”) system. Using the provided method, undersampling on the order of around 96 percent can be achieved while still producing clinically acceptable images.
摘要翻译：提供了一种利用压缩感知泛化的图像重建方法。更具体地，提供了一种用于同位素最小化的方法，其中迭代地解决渐近地接近10个最小化的解的一系列子问题。这些子问题包括在传统的压缩感知框架中利用凹度度量先验函数。例如使用诸如磁共振成像（“MRI”）系统或计算机断层扫描（“CT”）系统的医学成像系统从受试者获取基本欠采样的图像数据。使用所提供的方法，可以在仍然产生临床可接受的图像的同时实现大约96％的低采样。

42. 发明申请

US20100142776A1 OBLIQUE CENTERLINE FOLLOWING DISPLAY OF CT COLONOGRAPHY IMAGES 有权
标题翻译：随机显示CT组合图像的OBLIQUE中心
公开(公告)号：US20100142776A1
公开(公告)日：2010-06-10
申请号：US12523453
申请日：2008-01-22
申请人： C. Daniel Johnson , Michael J. Carston , Robert J. Wentz , Armando Manduca
发明人： C. Daniel Johnson , Michael J. Carston , Robert J. Wentz , Armando Manduca
IPC分类号： G06K9/00
CPC分类号： G06T19/00 , G06T2200/24 , G06T2210/41 , G06T2219/008
摘要： A method for displaying colonography images includes presenting a series of oblique images of the colon at sequential locations along the colon centerline. Each image is generally centered on the centerline, presents a field of view generally perpendicular to the centerline, and is oriented with the bottom of the colon down.
摘要翻译：用于显示结肠成像图像的方法包括在结肠中心线的顺序位置呈现一系列的冒号的倾斜图像。每个图像通常以中心线为中心，呈现通常垂直于中心线的视场，并且以冒号的底部为底。

43. 发明授权

US11172910B2 Ultrasound vibrometry with unfocused ultrasound 有权
公开(公告)号：US11172910B2
公开(公告)日：2021-11-16
申请号：US14001604
申请日：2012-02-27
申请人： James F. Greenleaf , Shigao Chen , Armando Manduca , Pengfei Song
发明人： James F. Greenleaf , Shigao Chen , Armando Manduca , Pengfei Song
IPC分类号： A61B8/08 , G01N29/07 , G01N21/17 , G01N29/24 , G01N29/22 , G01S7/52 , A61B5/00 , G01R33/48 , G01S15/89 , A61B8/00
摘要： Methods for measuring mechanical properties of an object or subject under examination with an ultrasound system and using unfocused ultrasound energy are provided. Shear waves that propagate in the object or subject are produced by applying unfocused ultrasound energy to the object or subject, and measurement data is acquired by applying focused or unfocused ultrasound energy to at least one location in the object or subject at which shear waves are present Mechanical properties are then calculated from the acquired measurement data.

44. 发明申请

US20150309140A1 System and Method for Generating Spatial Maps of Mechanical Parameters Using Graph-Cut Based Optimization 审中-公开
标题翻译：使用基于图形的优化来生成机械参数的空间映射的系统和方法
公开(公告)号：US20150309140A1
公开(公告)日：2015-10-29
申请号：US14689149
申请日：2015-04-17
申请人： Joshua D. Trzasko , Armando Manduca
发明人： Joshua D. Trzasko , Armando Manduca
IPC分类号： G01R33/54
CPC分类号： G01R33/56358 , G01R33/5608
摘要： A system and method for generating a spatial map of parameters that describe the mechanically-induced harmonic motion information present within a magnetic resonance elastography (MRE) data set is provided. A first temporal harmonic signal is estimated using a graph-cut based optimization strategy, and can subsequently be used to generate a the spatial map of mechanical parameters. The MRE data set is used to estimate the harmonic. The spatial map is of a mechanical parameter derived from the estimated harmonic.
摘要翻译：提供了一种用于生成描述在磁共振弹性成像（MRE）数据集内存在的机械感应谐波运动信息的参数的空间图的系统和方法。使用基于图形的优化策略来估计第一时间谐波信号，并且随后可以用于生成机械参数的空间图。 MRE数据集用于估计谐波。空间映射是从估计谐波导出的机械参数。

45. 发明授权

US08965078B2 Projection-space denoising with bilateral filtering in computed tomography 有权
标题翻译：计算机断层扫描中双边滤波的投影空间去噪
公开(公告)号：US08965078B2
公开(公告)日：2015-02-24
申请号：US13145461
申请日：2010-02-19
申请人： Lifeng Yu , Armando Manduca , Joshua Trzasko , Joel G. Fletcher
发明人： Lifeng Yu , Armando Manduca , Joshua Trzasko , Joel G. Fletcher
IPC分类号： G06K9/00 , G06T11/00
CPC分类号： G06T11/005 , G06T2207/20028
摘要： Projection data acquired with an x-ray CT system is filtered using a bilateral filter to reduce image noise and enable the acquisition at lower x-ray dose without the loss of image diagnostic quality. The bilateral filtering is performed before image reconstruction by producing a noise equivalent data set from the acquired projection data and then converting the bilateral filtered values back to a projection data set suitable for image reconstruction.
摘要翻译：用x射线CT系统获取的投影数据使用双边滤波器进行滤波，以降低图像噪声，并能够在较低X射线剂量下进行采集，而不会损失图像诊断质量。通过从获取的投影数据产生噪声等效数据集，然后将双边滤波值转换回适合于图像重建的投影数据集，在图像重构之前执行双边滤波。

46. 发明授权

US08897515B2 Method for compressed sensing image reconstruction using a priori knowledge of spatial support 有权
标题翻译：使用先验空间支持知识的压缩感测图像重建方法
公开(公告)号：US08897515B2
公开(公告)日：2014-11-25
申请号：US12877638
申请日：2010-09-08
申请人： Joshua D Trzasko , Armando Manduca
发明人： Joshua D Trzasko , Armando Manduca
IPC分类号： G06K9/00 , G06T11/00
CPC分类号： G06T11/006 , G06T2211/424 , G06T2211/436
摘要： A method for image reconstruction that utilizes the benefits of compressed sensing (“CS”) while incorporating a priori knowledge of object spatial support into the image reconstruction is provided. Image data is acquired from a subject, for example, with a medical imaging system, such as a magnetic resonance imaging (“MRI”) system or a computed tomography (“CT”) system. An estimate of the spatial support of the subject is produced, for example, using a low resolution image of the subject, or an image reconstructed from undersampled image data in a traditional sense. An estimate image of the subject is also produced by using traditional image reconstruction methods on the acquired image data. An image of the subject is then reconstructed using the produced estimate image and produced spatial support estimate. This method allows for the reconstruction of quality images from undersampled image data in a computationally efficient manner.
摘要翻译：提供了一种利用压缩感知（“CS”）的优点，同时将对象空间支持的先验知识并入图像重建中的图像重建方法。例如，利用诸如磁共振成像（“MRI”）系统或计算机断层扫描（“CT”）系统的医学成像系统从受试者获取图像数据。产生对象的空间支持的估计，例如，使用对象的低分辨率图像，或从传统意义上的欠采样图像数据重建的图像。通过对所获取的图像数据使用传统的图像重建方法也产生对象的估计图像。然后使用所产生的估计图像重建受试者的图像并产生空间支持估计。该方法允许以计算有效的方式重建来自欠采样图像数据的质量图像。

47. 发明授权

US08310233B2 Method for image reconstruction from undersampled medical imaging data 有权
标题翻译：从欠采样的医学成像数据进行图像重建的方法
公开(公告)号：US08310233B2
公开(公告)日：2012-11-13
申请号：US12705818
申请日：2010-02-15
申请人： Joshua D Trzasko , Armando Manduca
发明人： Joshua D Trzasko , Armando Manduca
IPC分类号： G01V3/00 , G06K9/00
CPC分类号： G01R33/561 , G01R33/5608 , G01R33/5611
摘要： A method for image reconstruction that utilizes a generalization of compressed sensing is provided. More particularly, a method for homotopic l0 minimization is provided, in which a series of subproblems that asymptotically approach a solution to the l0 minimization are iteratively solved. These subproblems include utilizing concave metric prior functionals in the traditional compressed sensing framework. Substantially undersampled image data is acquired from a subject, for example, with a medical imaging system, such as a magnetic resonance imaging (“MRI”) system or a computed tomography (“CT”) system. Using the provided method, undersampling on the order of around 96 percent can be achieved while still producing clinically acceptable images.
摘要翻译：提供了一种利用压缩感知泛化的图像重建方法。更具体地，提供了一种用于同位素最小化的方法，其中迭代地解决渐近地接近10个最小化的解的一系列子问题。这些子问题包括在传统的压缩感知框架中利用凹度度量先验函数。例如使用诸如磁共振成像（MRI）系统或计算机断层摄影（CT）系统的医学成像系统从受试者获取基本欠采样的图像数据。使用所提供的方法，可以在仍然产生临床可接受的图像的同时实现大约96％的低采样。

48. 发明申请

US20120008841A1 SIMULTANEOUS DUAL WINDOW/LEVEL SETTINGS FOR DISPLAY OF CT COLONOGRAPHY IMAGES 有权
标题翻译：用于显示CT组合图像的同时双窗口/等级设置
公开(公告)号：US20120008841A1
公开(公告)日：2012-01-12
申请号：US12523465
申请日：2008-01-22
申请人： C. Daniel Johnson , Michael J. Carston , Armando Manduca
发明人： C. Daniel Johnson , Michael J. Carston , Armando Manduca
IPC分类号： G06K9/00
CPC分类号： G06T19/00 , G06T2210/41
摘要： A method for processing and displaying colonography image data. First distance tissue pixels representative of tissue within a first distance of gas pixels representative of gas are processed with a first window/level setting to generate a first setting set of image pixels. Second distance tissue pixels representative of tissue within a second distance of the gas pixels are processed with a second window/level setting to generate a second setting set of image pixels. The second distance is a distance greater than the first distance. A colonography image including both the first and second setting sets of image pixels is then displayed.
摘要翻译：一种处理和显示结肠图像数据的方法。代表气体的气体像素的第一距离内的组织的第一距离组织像素用第一窗口/等级设置进行处理，以生成图像像素的第一设置集合。代表气体像素的第二距离内的组织的第二距离组织像素用第二窗口/等级设置进行处理，以产生图像像素的第二设置集合。第二距离是大于第一距离的距离。然后显示包括图像像素的第一和第二设置组的结构图像。

49. 发明申请

US20110105883A1 REAL TIME MOTION INFORMATION CAPTURE IN AN MRI ENVIRONMENT 有权
标题翻译： MRI环境中的实时运动信息捕获
公开(公告)号：US20110105883A1
公开(公告)日：2011-05-05
申请号：US12612143
申请日：2009-11-04
申请人： David S. Lake , Armando Manduca , Jeffrey S. McAllister , Nelson Ramirez
发明人： David S. Lake , Armando Manduca , Jeffrey S. McAllister , Nelson Ramirez
IPC分类号： A61B5/05 , G06K9/00
CPC分类号： A61B5/0059 , A61B5/055 , A61B5/1126 , A61B5/721 , A61B5/7257
摘要： Systems, methods and articles of manufacture are disclosed for capturing motion information in a magnetic resonance imaging (MRI) environment. A light sink in the MRI environment may detect light emitted from a plurality of light sources. Each of the plurality of light sources may emit light of a different frequency. Further, each of the plurality of light sources may be located at a different spatial position in the MRI environment. The detected light may be analyzed. A change in spatial position of the light sink may be computed based on the analysis.
摘要翻译：公开了用于在磁共振成像（MRI）环境中捕获运动信息的系统，方法和制品。 MRI环境中的光接收器可以检测从多个光源发射的光。多个光源中的每一个可以发射不同频率的光。此外，多个光源中的每一个可以位于MRI环境中不同的空间位置。可以分析检测到的光。可以基于分析来计算光吸收器的空间位置的变化。

50. 发明申请

US20110105882A1 CORRECTING SUBJECT MOTION IN MULTIPLE RESOLUTIONS IN MAGNETIC RESONANCE IMAGING 失效
标题翻译：修正磁共振成像中多项决议中的主题运动
公开(公告)号：US20110105882A1
公开(公告)日：2011-05-05
申请号：US12612105
申请日：2009-11-04
申请人： David S. Lake , Armando Manduca , Jeffrey S. McAllister , Timothy J. Mullins , Nelson Ramirez
发明人： David S. Lake , Armando Manduca , Jeffrey S. McAllister , Timothy J. Mullins , Nelson Ramirez
IPC分类号： A61B5/055 , G06K9/00
CPC分类号： A61B5/055 , A61B5/7207 , A61B5/7257
摘要： Systems, methods and articles of manufacture are disclosed for compensating for motion of a subject during an MRI scan of the subject. k-space data may be received from the MRI scan of the subject. A first graphical image may be generated from a first set of data elements from the k-space data. Similarly, a second graphical image may be generated from a second set of data elements from the k-space data. An offset in pixels may be determined by which to translate the second graphical image from the first graphical image to compensate for the motion. The k-space data may be modified at a sub-pixel offset relative to the determined offset. A motion-compensated graphical image of the subject may be generated from the modified k-space data. Doing so reduces the search space evaluated to sharpen images generated from the k-space data.
摘要翻译：公开了用于在对象的MRI扫描期间补偿对象的运动的系统，方法和制品。可以从对象的MRI扫描接收k空间数据。可以从k空间数据的第一组数据元素生成第一图形图像。类似地，可以从k空间数据的第二组数据元素生成第二图形图像。像素中的偏移量可以由第一图形图像的第二图形图像转换为补偿运动来确定。可以在相对于所确定的偏移的子像素偏移处修改k空间数据。可以从修改的k空间数据生成被摄体的运动补偿图形图像。这样做减少了评估的搜索空间，以锐化从k空间数据生成的图像。

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