公开(公告)号：US20090012382A1

公开(公告)日：2009-01-08

申请号：US11772654

申请日：2007-07-02

申请人： Sandeep Dutta ,  Ajay Gopinath ,  Srikanth Suryanarayanan ,  Arunabha Shasanka Roy ,  Paulo Ricardo Dos Santos Mendonca

发明人： Sandeep Dutta ,  Ajay Gopinath ,  Srikanth Suryanarayanan ,  Arunabha Shasanka Roy ,  Paulo Ricardo Dos Santos Mendonca

IPC分类号： A61B6/00

CPC分类号： A61B6/504 ,  A61B5/02007 ,  A61B5/055 ,  A61B5/489 ,  A61B6/032 ,  A61B6/481 ,  G06T7/0012 ,  G06T2207/30101

摘要： A method for automatic detection of obstructions in vasculature in an anatomical region is presented. The method includes partitioning the anatomical region into a plurality of sub-regions based at least in part on anatomical knowledge. Further, the method includes adaptively computing a threshold intensity value corresponding to each of the plurality of sub-regions. Additionally, the method includes extracting the vasculature in each of the plurality of sub-regions based on the corresponding computed threshold intensity value, where the extracted vasculature comprises a plurality of vessel segments. The method also includes detecting an obstruction in the extracted vasculature. Systems and computer-readable medium that afford functionality of the type defined by this method is also contemplated in conjunction with the present technique.

摘要翻译： 提出了一种自动检测解剖区域脉管系统阻塞物的方法。 该方法包括至少部分地基于解剖学知识将解剖区域划分成多个子区域。 此外，该方法包括自适应地计算与多个子区域中的每一个对应的阈值强度值。 另外，该方法包括基于对应的计算的阈值强度值来提取多个子区域中的每个子区域中的脉管系统，其中提取的脉管系统包括多个血管段。 该方法还包括检测提取的脉管系统中的梗阻。 提供由该方法定义的类型的功能的系统和计算机可读介质也结合本技术考虑。

公开(公告)号：US20120051664A1

公开(公告)日：2012-03-01

申请号：US12873039

申请日：2010-08-31

申请人： Girishankar Gopalakrishnan ,  Alexander Ganin ,  Ravindra Mohan Majeshwar ,  Kris Filip Johan Jules Thielemans ,  Scott David Wollenweber ,  Floribertus P.M. Heukensfeldt Jansen ,  Arunabha Shasanka Roy

发明人： Girishankar Gopalakrishnan ,  Alexander Ganin ,  Ravindra Mohan Majeshwar ,  Kris Filip Johan Jules Thielemans ,  Scott David Wollenweber ,  Floribertus P.M. Heukensfeldt Jansen ,  Arunabha Shasanka Roy

IPC分类号： G06K9/32

CPC分类号： G06T7/38 ,  G06T5/002 ,  G06T5/40 ,  G06T5/50 ,  G06T7/20 ,  G06T7/269 ,  G06T7/30 ,  G06T11/005 ,  G06T2207/10016 ,  G06T2207/10104 ,  G06T2207/10108 ,  G06T2207/20221 ,  G06T2207/30004 ,  G06T2211/412

摘要： Methods and systems for processing a set of images are described. In accordance with this disclosure, images are registered and an analysis is performed in view of one or more constraints (such as constraints based upon anatomical or physiological considerations). Weighting factors are determined based on the analysis. The weighting factors are used in subsequent processing of the registered (and/or unregistered) images and/or to formulate a visualization that conveys the degree of confidence in the motion estimation used in the registration process.

摘要翻译： 描述用于处理一组图像的方法和系统。 根据本公开，记录图像，并且根据一个或多个约束（诸如基于解剖学或生理考虑的约束）来执行分析。 加权因子根据分析确定。 加权因子用于后续的注册（和/或未注册）图像的处理和/或制定传达在注册过程中使用的运动估计的置信度的可视化。

公开(公告)号：US09129426B2

公开(公告)日：2015-09-08

申请号：US12873039

申请日：2010-08-31

申请人： Girishankar Gopalakrishnan ,  Alexander Ganin ,  Ravindra Mohan Majeshwar ,  Kris Filip Johan Jules Thielemans ,  Scott David Wollenweber ,  Floribertus P.M. Heukensfeldt Jansen ,  Arunabha Shasanka Roy

发明人： Girishankar Gopalakrishnan ,  Alexander Ganin ,  Ravindra Mohan Majeshwar ,  Kris Filip Johan Jules Thielemans ,  Scott David Wollenweber ,  Floribertus P.M. Heukensfeldt Jansen ,  Arunabha Shasanka Roy

IPC分类号： G06T11/00 ,  G06T5/50 ,  G06T7/20 ,  G06T5/00

CPC分类号： G06T7/38 ,  G06T5/002 ,  G06T5/40 ,  G06T5/50 ,  G06T7/20 ,  G06T7/269 ,  G06T7/30 ,  G06T11/005 ,  G06T2207/10016 ,  G06T2207/10104 ,  G06T2207/10108 ,  G06T2207/20221 ,  G06T2207/30004 ,  G06T2211/412

摘要： Methods and systems for processing a set of images are described. In accordance with this disclosure, images are registered and an analysis is performed in view of one or more constraints (such as constraints based upon anatomical or physiological considerations). Weighting factors are determined based on the analysis. The weighting factors are used in subsequent processing of the registered (and/or unregistered) images and/or to formulate a visualization that conveys the degree of confidence in the motion estimation used in the registration process.

摘要翻译： 描述用于处理一组图像的方法和系统。 根据本公开，记录图像，并且根据一个或多个约束（诸如基于解剖学或生理考虑的约束）来执行分析。 加权因子根据分析确定。 加权因子用于后续的注册（和/或未注册）图像的处理和/或制定传达在注册过程中使用的运动估计中的置信度的可视化。

公开(公告)号：US20110148928A1

公开(公告)日：2011-06-23

申请号：US12640207

申请日：2009-12-17

申请人： Girishankar Gopalakrishnan ,  Rakesh Mullick ,  Arunabha Shasanka Roy ,  Sheshadri Rangarajan Thiruvenkadam ,  Ravindra Mohan Manjeshwar

发明人： Girishankar Gopalakrishnan ,  Rakesh Mullick ,  Arunabha Shasanka Roy ,  Sheshadri Rangarajan Thiruvenkadam ,  Ravindra Mohan Manjeshwar

IPC分类号： G09G5/00 ,  G06K9/00

CPC分类号： A61B6/037 ,  A61B5/7285 ,  A61B6/5264 ,  A61B6/5288 ,  A61B6/541

摘要： A method of imaging is presented. The method includes reconstructing image data acquired at a plurality of time intervals to obtain a plurality of images. Further, the method includes generating a mean image using the plurality of images. The method also includes correcting motion in the mean image or the plurality of images or both the mean image and the plurality of images by iteratively determining convergence of the mean image or the plurality of images or both the mean image and the plurality of images to generate a converged mean image, a converged plurality of images, or both a converged mean image and a converged plurality of images.

摘要翻译： 提出了一种成像方法。 该方法包括重构以多个时间间隔获取的图像数据，以获得多个图像。 此外，该方法包括使用多个图像生成平均图像。 该方法还包括通过迭代地确定平均图像或多个图像的收敛或平均图像和多个图像两者来均衡平均图像或多个图像或平均图像和多个图像中的运动，以产生 收敛平均图像，收敛多个图像，或融合平均图像和收敛多个图像两者。