专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

11. 发明授权

US08532357B2 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：US08532357B2
公开(公告)日：2013-09-10
申请号：US12358829
申请日：2009-01-23
申请人： Scott David Wollenweber , Kris Filip Johan Jules Thielemans
发明人： Scott David Wollenweber , Kris Filip Johan Jules Thielemans
IPC分类号： G06K9/00
CPC分类号： A61B5/1114 , A61B5/113 , A61B5/721 , A61B5/7289 , A61B6/03 , A61B6/037 , A61B6/508 , A61B6/5235 , A61B6/5247 , A61B6/527 , A61B6/548 , G06T11/005 , G06T2211/412
摘要： A method and apparatus are provided for reducing motion related imaging artifacts. The method includes obtaining an image data set of a region of interest in an object, obtaining a motion signal indicative of motion of the region of interest, and determining a displacement and a phase of at least a portion of the motion signal. The method also includes mapping the image data set into a matrix based on the displacement and phase of the motion signal, and generating an image of the region of interest from the matrix.
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。该方法包括获得对象中的感兴趣区域的图像数据集，获得表示感兴趣区域的运动的运动信号，以及确定运动信号的至少一部分的位移和相位。该方法还包括基于运动信号的位移和相位将图像数据集映射成矩阵，以及从矩阵生成感兴趣区域的图像。

12. 发明授权

US08391573B2 Method and apparatus for motion correcting medical images 有权
标题翻译：用于运动校正医学图像的方法和装置
公开(公告)号：US08391573B2
公开(公告)日：2013-03-05
申请号：US13043757
申请日：2011-03-09
申请人： Scott David Wollenweber
发明人： Scott David Wollenweber
IPC分类号： G06K9/00
CPC分类号： G06T11/008 , G06T2211/412
摘要： A method for reducing, in an image, motion related imaging artifacts includes obtaining a four-dimensional (4D) image dataset of a region of interest, sorting the 4D image dataset into a plurality of gates, generating an image of the region of interest using the plurality of gates, quantifying a selected feature using at least one metric, selecting a reference gate from the plurality of gates based on the quantification of the feature, and registering one or more of the plurality of gates to the reference gate to generate an image of the selected feature. A system and non-transitory computer readable medium configure to implement the method are also described herein.
摘要翻译：一种用于在图像中减少运动相关成像伪像的方法包括获得感兴趣区域的四维（4D）图像数据集，将4D图像数据集分类成多个门，使用以下方式生成感兴趣区域的图像所述多个门，使用至少一个度量量化所选择的特征，基于所述特征的量化从所述多个门中选择参考门，以及将所述多个门中的一个或多个注册到所述参考门以产生图像的所选功能。此处还描述了配置为实现该方法的系统和非暂时性计算机可读介质。

13. 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。

14. 发明申请

US20110150306A1 APPARATUS AND METHODS FOR DETERMINING A BOUNDARY OF AN OBJECT FOR POSITRON EMISSION TOMOGRAPHY SCATTER CORRECTION 有权
标题翻译：用于确定POSI发射平面扫描校正的对象边界的装置和方法
公开(公告)号：US20110150306A1
公开(公告)日：2011-06-23
申请号：US12643735
申请日：2009-12-21
申请人： Steven Gerard Ross , Timothy Wayne Deller , Ravindra Mohan Manjeshwar , Scott David Wollenweber , Charles William Stearns
发明人： Steven Gerard Ross , Timothy Wayne Deller , Ravindra Mohan Manjeshwar , Scott David Wollenweber , Charles William Stearns
IPC分类号： G06K9/62 , H05G1/60 , G01T1/166
CPC分类号： A61B6/032 , A61B6/037 , A61B6/5211 , G01T1/1611 , G01T1/2985 , G06T11/005
摘要： Apparatus and methods for determining a boundary of an object for positron emission tomography (PET) scatter correction are provided. One method includes obtaining positron emission tomography (PET) data and computed tomography (CT) data for an object. The PET data and CT data is acquired from an imaging system. The method further includes determining a PET data boundary of the object based on the PET data and determining a CT data boundary of the object based on the CT data. The method further includes determining a combined boundary for PET scatter correction. The combined boundary encompasses the PET data boundary and the CT data boundary.
摘要翻译：提供了用于确定正电子发射断层摄影（PET）散射校正物体边界的装置和方法。一种方法包括获得对象的正电子发射断层摄影（PET）数据和计算机断层摄影（CT）数据。从成像系统获取PET数据和CT数据。该方法还包括基于PET数据确定对象的PET数据边界，并且基于CT数据确定对象的CT数据边界。该方法还包括确定PET散射校正的组合边界。组合边界包含PET数据边界和CT数据边界。

15. 发明申请

US20110127434A1 METHODS AND SYSTEMS FOR DETERMINING A MEDICAL SYSTEM ALIGNMENT 有权
标题翻译：用于确定医疗系统对齐的方法和系统
公开(公告)号：US20110127434A1
公开(公告)日：2011-06-02
申请号：US12629191
申请日：2009-12-02
申请人： Scott David Wollenweber
发明人： Scott David Wollenweber
IPC分类号： G01T1/166 , G01T1/20
CPC分类号： A61B6/587 , A61B6/037 , A61B6/488
摘要： Methods and systems for performing a patient scan using a three-dimensional (3D) cylindrical Positron Emission Tomography (PET) imaging system are provided. The method includes acquiring a count-rate profile of a brain, repositioning at least one of a detector and the brain based on the count-rate profile and a detector sensitivity profile, and scanning the brain when the acquired count-rate profile substantially matches the detector sensitivity profile.
摘要翻译：提供了使用三维（3D）圆柱正电子发射断层扫描（PET）成像系统进行患者扫描的方法和系统。该方法包括获取大脑的计数率分布，基于计数率分布和检测器灵敏度分布来重新定位检测器和大脑中的至少一个，以及当所获取的计数率分布基本上与检测器灵敏度分布。

16. 发明申请

US20100116994A1 METHOD AND SYSTEM FOR SCATTER CORRECTION 有权
标题翻译：用于散射校正的方法和系统
公开(公告)号：US20100116994A1
公开(公告)日：2010-05-13
申请号：US12270437
申请日：2008-11-13
申请人： Scott David Wollenweber , David Leo McDaniel , Charles William Stearns
发明人： Scott David Wollenweber , David Leo McDaniel , Charles William Stearns
IPC分类号： G01T1/164 , G01R13/00
CPC分类号： G01T1/1648 , G01T1/1611
摘要： A method and apparatus are provided for correcting primary and secondary emission data. The method includes obtaining an emission data set having primary and secondary emission data representative of primary and secondary emission particles emitting from a region of interest and applying a scatter correction model to the emission data set to derive an estimated scatter vector. The method also includes comparing the emission data set to the estimated scatter vector to identify an amount of secondary emission data in the emission data set and correcting the emission data set based on the amount of secondary emission data identified in the comparing operation.
摘要翻译：提供了一种用于校正一次和二次发射数据的方法和装置。该方法包括获得具有代表从感兴趣区域发射的初级和次级发射粒子的初级和次级发射数据的发射数据集，并向发射数据集应用散射校正模型以导出估计的散射矢量。该方法还包括将发射数据集与估计的散射矢量进行比较，以识别发射数据组中的二次发射数据的量，并且基于在比较操作中识别的二次发射数据的量来校正发射数据集。

17. 发明授权

US09168015B2 Method and apparatus for gate specific MR-based attenuation correction of time-gated PET studies 有权
标题翻译：时间门PET研究的门特定基于MR的衰减校正的方法和装置
公开(公告)号：US09168015B2
公开(公告)日：2015-10-27
申请号：US14138311
申请日：2013-12-23
申请人： Charles William Stearns , Scott David Wollenweber , David M. Goldhaber
发明人： Charles William Stearns , Scott David Wollenweber , David M. Goldhaber
IPC分类号： A61B6/00 , G06T5/50 , G06T7/00 , A61B5/00 , A61B5/05 , A61B5/085 , A61B6/03 , G01T1/161 , G01T1/29
CPC分类号： A61B6/5282 , A61B5/0033 , A61B5/0522 , A61B5/085 , A61B6/03 , A61B6/037 , A61B6/5247 , A61B6/5264 , A61B6/541 , G01R33/481 , G01T1/1611 , G01T1/2985 , G06T5/50 , G06T7/32 , G06T2207/10084 , G06T2207/10088 , G06T2207/10104 , G06T2207/20048 , G06T2207/20172 , G06T2207/30004
摘要： A method for attenuation correction of a plurality of time-gated PET images of a moving structure includes establishing an ACF matrix, based on a baseline MR image of the structure; developing a plurality of image transforms, each of the image transforms registering the baseline MR image to a respective cine MR image of the moving structure; applying each of the image transforms to the ACF matrix to generate a corresponding cine ACF matrix; time-correlating each of the cine MR images, and its corresponding cine ACF matrix, to one of the plurality of time-gated PET data sets; and producing from each of the time-gated PET data sets an attenuation-corrected time-gated PET image.
摘要翻译：一种用于移动结构的多个时间选择PET图像的衰减校正的方法包括基于该结构的基线MR图像来建立ACF矩阵; 开发多个图像变换，每个图像变换将基线MR图像登记到移动结构的相应电影MR图像; 将每个图像变换应用于ACF矩阵以生成相应的电影ACF矩阵; 将每个电影MR图像及其相应的电影ACF矩阵时间相关到多个时间选择的PET数据集之一; 并且从每个时间选择的PET数据集产生衰减校正的时间门控PET图像。

18. 发明授权

US08837799B2 Method and apparatus for selecting a reference gate 有权
标题翻译：用于选择参考门的方法和装置
公开(公告)号：US08837799B2
公开(公告)日：2014-09-16
申请号：US13600997
申请日：2012-08-31
申请人： Scott David Wollenweber
发明人： Scott David Wollenweber
IPC分类号： G06T7/00
CPC分类号： G06T11/005 , G06T2211/412
摘要： A method for selecting a reference gate includes acquiring a four-dimensional (4D) emission dataset of an object of interest, sorting the 4D emission dataset into a plurality of gates, calculating a slice activity value for each slice in the plurality of gates, generating a maximum difference value for each gate using the plurality of slice activity values, and selecting a reference gate based on the locations of the maximum difference values. An imaging system and a non-transitory computer readable medium are also described herein.
摘要翻译：一种用于选择参考门的方法包括获取感兴趣对象的四维（4D）发射数据集，将4D发射数据集分类成多个门，计算多个门中的每个片的片活动度值，产生使用多个切片活动值对每个门的最大差值，并且基于最大差值的位置来选择参考门。本文还描述了成像系统和非暂时性计算机可读介质。

19. 发明申请

US20130322716A1 METHODS AND SYSTEM FOR DISPLAYING SEGMENTED IMAGES 有权
标题翻译：用于显示分割图像的方法和系统
公开(公告)号：US20130322716A1
公开(公告)日：2013-12-05
申请号：US13482660
申请日：2012-05-29
申请人： Scott David Wollenweber
发明人： Scott David Wollenweber
IPC分类号： G06K9/34
CPC分类号： A61B6/5235 , A61B6/037 , A61B6/463 , A61B6/469 , A61B6/5217 , A61B6/5223 , G06T7/12 , G06T7/174 , G06T2207/10104 , G06T2207/20104
摘要： A method for displaying a segmented two-dimensional (2D) image includes obtaining a three-dimensional (3D) volume dataset corresponding to an imaged volume along a viewing plane, segmenting an object of interest within 3D volume to generate a plurality of segmented two-dimensional (2D) images along the viewing plane, selecting a reference image for viewing from the plurality of segmented 2D images, and displaying the reference image, the reference image having a first segmentation boundary drawn around the object of interest and a second segmentation boundary drawn around the object of interest, the first segmentation boundary being derived from the segmentation performed on the reference image and the second segmentation boundary being derived from the segmentation performed on at least one non-reference image of the plurality of segmented 2D images.
摘要翻译：用于显示分割的二维（2D）图像的方法包括：沿着观察平面获得对应于成像体积的三维（3D）体数据集，在3D体积内分割感兴趣的对象以生成多个分段二维沿着观察平面的二维（2D）图像，从多个分割的2D图像中选择用于观看的参考图像，以及显示参考图像，参考图像具有围绕感兴趣对象绘制的第一分割边界和绘制的第二分割边界围绕感兴趣的对象，从对参考图像执行的分割导出第一分割边界，并且从对多个分割的2D图像的至少一个非参考图像执行的分割导出第二分割边界。

20. 发明授权

US08107695B2 Methods and systems for assessing patient movement in diagnostic imaging 有权
标题翻译：评估患者运动诊断成像的方法和系统
公开(公告)号：US08107695B2
公开(公告)日：2012-01-31
申请号：US11823231
申请日：2007-06-27
申请人： Scott David Wollenweber
发明人： Scott David Wollenweber
IPC分类号： G06K9/00 , G06K9/32
CPC分类号： G06T7/20 , A61B6/027 , G06T11/005 , G06T2207/10072 , G06T2211/412
摘要： Methods and systems for automatically detecting gross patient motion using a diagnostic medical imaging system are provided. The method provides for acquiring a plurality of frames of image data, positioning a first time window and a second time window over overlapping frames of image data, calculating a statistical correlation value based on the first time window and the second time window, and comparing a first derivative of the statistical correlation value to a threshold value to determine patient motion.
摘要翻译：提供了使用诊断医学成像系统自动检测患者总体运动的方法和系统。该方法提供了获取图像数据的多个帧，在图像数据的重叠帧上定位第一时间窗口和第二时间窗口，基于第一时间窗口和第二时间窗口计算统计相关值，并且比较统计相关值的一阶导数为阈值，以确定患者运动。

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