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1. 发明申请

US20100040264A1 REGISTERING BRAIN IMAGES BY ALIGNING REFERENCE ELLIPSES 失效
标题翻译：通过参考ELLIPSES注册脑图像
公开(公告)号：US20100040264A1
公开(公告)日：2010-02-18
申请号：US12306842
申请日：2007-06-28
申请人： Ihar Volkau , Bhanu Prakash K.N. , Ting Ting Ng , Varsha Gupta , Wieslaw Lucjan Nowinski
发明人： Ihar Volkau , Bhanu Prakash K.N. , Ting Ting Ng , Varsha Gupta , Wieslaw Lucjan Nowinski
IPC分类号： G06K9/00
CPC分类号： G06K9/32 , A61B6/03 , A61B6/5235 , G06K2209/051 , G06T7/344 , G06T2207/10072 , G06T2207/30016
摘要： In a method of registering three-dimensional brain images, a reference slice for a midsagittal plane of each image is constructed. The reference slice comprises image points forming a cortical edge. Edge points are selected from these image points such that an ellipse fit to the edge points approximates the cortical edge. The reference ellipse in each image that fits the edge points is determined. The images are registered in a same coordinate system such that the reference ellipses in the images are aligned with one another.
摘要翻译：在一种用于记录三维脑图像的方法中，构建了每个图像的中间平面的参考切片。参考切片包括形成皮层边缘的图像点。从这些图像点选择边缘点，使得适合于边缘点的椭圆近似于皮层边缘。确定每个图像中适合边缘点的参考椭圆。图像被记录在相同的坐标系中，使得图像中的参考椭圆相互对准。

2. 发明授权

US08125223B2 Segmenting infarct in diffusion-weighted imaging volume 失效
标题翻译：扩散加权成像体积分割梗死
公开(公告)号：US08125223B2
公开(公告)日：2012-02-28
申请号：US12311484
申请日：2006-10-03
申请人： Bhanu Prakash K.N. , Varsha Gupta , Wieslaw Lucjan Nowinski
发明人： Bhanu Prakash K.N. , Varsha Gupta , Wieslaw Lucjan Nowinski
IPC分类号： G01V3/00
CPC分类号： G06T7/11 , G06T7/136 , G06T2207/10092 , G06T2207/20104 , G06T2207/30016 , G06T2207/30101
摘要： Methods (2900), apparatuses (3000), and computer program products for segmenting an infarct in a diffusion-weighted imaging (DWI) volume are disclosed. A Region of Interest in at least one slice of the DWI volume is selected (2912). The ROI comprises at least a portion of the slice. A threshold for a minimum size of an infarct region is selected (2916). An energy mask is convolved (2918) with that slice, and the resulting energy image is normalized (2920). The ROI in the convolved energy image is selected (2922). An initial threshold is determined (2924) using a histogram of the ROI of the slice without a background region, and an initial segmentation of the slice is performed (2926). Individual components of the initial segmentation of the slice are labeled (2930). A final threshold is determined (2932) using histograms of labeled components if the initial segmentation, and a final segmentation if the slice is performed (2934) using that threshold.
摘要翻译：公开了用于分割扩散加权成像（DWI）体积中的梗塞的方法（2900），装置（3000）和用于分割梗塞的计算机程序产品。选择DWI卷的至少一个片段中的感兴趣区域（2912）。 ROI包括切片的至少一部分。选择梗死区域的最小尺寸的阈值（2916）。能量掩模与该切片卷积（2918），并且所得能量图像被归一化（2920）。选择卷积能量图像中的ROI（2922）。使用没有背景区域的切片的ROI的直方图来确定初始阈值（2924），并且执行切片的初始分割（2926）。片段初始分割的各个成分被标记（2930）。如果初始分割，则使用标记分量的直方图来确定最终阈值（2932），以及如果使用该阈值执行切片的最终分割（2934）。

3. 发明申请

US20100231216A1 Segmenting infarct in diffusion-weighted imaging volume 失效
标题翻译：扩散加权成像体积分割梗死
公开(公告)号：US20100231216A1
公开(公告)日：2010-09-16
申请号：US12311484
申请日：2006-10-03
申请人： Bhanu Prakash K.N. , Varsha Gupta , Wieslaw Lucjan Nowinski
发明人： Bhanu Prakash K.N. , Varsha Gupta , Wieslaw Lucjan Nowinski
IPC分类号： G01R33/48
CPC分类号： G06T7/11 , G06T7/136 , G06T2207/10092 , G06T2207/20104 , G06T2207/30016 , G06T2207/30101
摘要： Methods (2900), apparatuses (3000), and computer program products for segmenting an infarct in a diffusion-weighted imaging (DWI) volume are disclosed. A Region of Interest in at least one slice of the DWI volume is selected (2912). The ROI comprises at least a portion of the slice. A threshold for a minimum size of an infarct region is selected (2916). An energy mask is convolved (2918) with that slice, and the resulting energy image is normalized (2920). The ROI in the convolved energy image is selected (2922). An initial threshold is determined (2924) using a histogram of the ROI of the slice without a background region, and an initial segmentation of the slice is performed (2926). Individual components of the initial segmentation of the slice are labeled (2930). A final threshold is determined (2932) using histograms of labeled components if the initial segmentation, and a final segmentation if the slice is performed (2934) using that threshold.
摘要翻译：公开了用于分割扩散加权成像（DWI）体积中的梗塞的方法（2900），装置（3000）和用于分割梗塞的计算机程序产品。选择DWI卷的至少一个片段中的感兴趣区域（2912）。 ROI包括切片的至少一部分。选择梗死区域的最小尺寸的阈值（2916）。能量掩模与该切片卷积（2918），并且所得能量图像被归一化（2920）。选择卷积能量图像中的ROI（2922）。使用没有背景区域的切片的ROI的直方图来确定初始阈值（2924），并且执行切片的初始分割（2926）。片段初始分割的各个成分被标记（2930）。如果初始分割，则使用标记分量的直方图来确定最终阈值（2932），以及如果使用该阈值执行切片的最终分割（2934）。

4. 发明申请

US20070014453A1 Method and apparatus for atlas-assisted interpretation of magnetic resonance diffusion and perfusion images 有权
标题翻译：用于图谱辅助解释磁共振扩散和灌注图像的方法和装置
公开(公告)号：US20070014453A1
公开(公告)日：2007-01-18
申请号：US11415679
申请日：2006-05-02
申请人： Wieslaw Nowinski , Bhanu Prakash K.N. , Ihar Volkau , Anand Ananthasubramaniam
发明人： Wieslaw Nowinski , Bhanu Prakash K.N. , Ihar Volkau , Anand Ananthasubramaniam
IPC分类号： G06K9/00
CPC分类号： G06T7/38 , G06T7/33 , G06T7/35 , G06T2207/10096 , G06T2207/30016 , G06T2207/30104
摘要： The present invention discloses a method for registering a measured MRI volume image with appropriate anatomical and blood supply territory Atlases to enable Atlas information to be mapped onto the measured MRI volume image. The disclosed arrangements provide an efficient method for mapping brain Atlas information (including gross anatomy and blood supply territories) into magnetic resonance perfusion and diffusion images.
摘要翻译：本发明公开了一种用于将测量的MRI体积图像与适当的解剖和血液供应领域Atlases进行登记的方法，以使Atlas信息能够映射到测量的MRI体积图像上。所公开的安排提供了将脑Atlas信息（包括大体解剖学和血液供应领域）映射到磁共振灌注和扩散图像中的有效方法。

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