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51. 发明申请

US20100021034A1 SYSTEM AND METHOD FOR THE GENERATION OF ATTENUATION CORRECTION MAPS FROM MR IMAGES 有权
标题翻译：用于从MR图像生成衰减校正图的系统和方法
公开(公告)号：US20100021034A1
公开(公告)日：2010-01-28
申请号：US12506333
申请日：2009-07-21
申请人： Christophe Lenglet , Christophe Chefd'hotel , Bernhard Geiger , Tina Ehtiati , Jens Gühring
发明人： Christophe Lenglet , Christophe Chefd'hotel , Bernhard Geiger , Tina Ehtiati , Jens Gühring
IPC分类号： G06K9/00
CPC分类号： G06K9/342 , G06K2209/051 , G06T7/11 , G06T7/149 , G06T2207/10088 , G06T2207/30004
摘要： A method for generating a positron emission tomography (PET) attenuation correction map from magnetic resonance (MR) images includes segmenting a 3-dimensional (3D) magnetic resonance (MR) whole-body image of a patient into low-signal regions, fat regions, and soft tissue regions; classifying the low-signal regions as either lungs, bones, or air by identifying lungs, identifying an abdominal station, and identifying a lower body station; and generating an attenuation map from the segmentation result by replacing the segmentation labels with corresponding representative attenuation coefficients.
摘要翻译：用于从磁共振（MR）图像生成正电子发射断层摄影（PET）衰减校正图的方法包括将患者的三维（3D）磁共振（MR）全身图像分为低信号区域，脂肪区域和软组织区域; 通过识别肺，识别腹部站和识别下半身站将低信号区域分类为肺，骨骼或空气; 以及通过用对应的代表衰减系数代替分割标签，从分割结果生成衰减图。

52. 发明授权

US07551761B2 Method and apparatus for fast automatic centerline extraction for virtual endoscopy 有权
标题翻译：用于虚拟内窥镜快速自动中心线提取的方法和装置
公开(公告)号：US07551761B2
公开(公告)日：2009-06-23
申请号：US12254945
申请日：2008-10-21
申请人： Bernhard Geiger , Jean-Daniel Boissonnat
发明人： Bernhard Geiger , Jean-Daniel Boissonnat
IPC分类号： G06K9/00 , G06T11/20 , G06T15/00 , G06T17/00
CPC分类号： G06K9/44 , G06K2209/05 , G06T7/12 , G06T7/149 , G06T7/66 , G06T2207/10081 , G06T2207/30028 , G06T2210/41 , Y10S128/922
摘要： A method for automatic centerline extraction for a virtual endoscopy image of an organ having a boundary surface includes centering on selected points of an initial path through the image, which is derived from an endoscopy dataset, respective spheres exhibiting respective maximal diameters short of contacting the boundary surface; and forming a centered path consecutively joining centers of the spheres.
摘要翻译：用于具有边界表面的器官的虚拟内窥镜检查图像的自动中心线提取的方法包括以从内窥镜检查数据集导出的通过图像的初始路径的选定点为中心，各个球体表现出与接触边界不相关的最大直径表面; 并形成一个连续中心连接中心的中心路径。

53. 发明授权

US07457444B2 Method and apparatus for fast automatic centerline extraction for virtual endoscopy 有权
标题翻译：用于虚拟内窥镜快速自动中心线提取的方法和装置
公开(公告)号：US07457444B2
公开(公告)日：2008-11-25
申请号：US10842972
申请日：2004-05-11
申请人： Bernhard Geiger , Jean-Daniel Boissonnat
发明人： Bernhard Geiger , Jean-Daniel Boissonnat
IPC分类号： G06K9/00 , A61B1/00 , A61B1/04 , A62B1/04 , G06F17/50 , G06F7/60 , G06G7/48 , G01N21/00
CPC分类号： G06K9/44 , G06K2209/05 , G06T7/12 , G06T7/149 , G06T7/66 , G06T2207/10081 , G06T2207/30028 , G06T2210/41 , Y10S128/922
摘要： A method for automatic centerline extraction for a virtual endoscopy image of an organ having a boundary surface includes centering on selected points of an initial path through the image, which is derived from an endoscopy dataset, respective spheres exhibiting respective maximal diameters short of contacting the boundary surface; and forming a centered path consecutively joining centers of the spheres.
摘要翻译：用于具有边界表面的器官的虚拟内窥镜检查图像的自动中心线提取的方法包括以从内窥镜检查数据集导出的通过图像的初始路径的选定点为中心，各个球体表现出与接触边界不相关的最大直径表面; 并形成一个连续中心连接中心的中心路径。

54. 发明授权

US07300398B2 Method and apparatus for registration of virtual endoscopic images 失效
标题翻译：用于注册虚拟内窥镜图像的方法和装置
公开(公告)号：US07300398B2
公开(公告)日：2007-11-27
申请号：US10915501
申请日：2004-08-09
申请人： Christophe Chefd′hotel , Bernhard Geiger
发明人： Christophe Chefd′hotel , Bernhard Geiger
IPC分类号： A61B1/00 , A61B1/04 , G06K9/00
CPC分类号： G06T7/38 , G06T7/33 , G06T2207/10081 , G06T2207/10088 , G06T2207/30028
摘要： A method for registration of virtual endoscopy images in first and second patient positions comprises performing colon segmentation and feature extraction, including centerline and colon surface data for each of the images; resampling the centerline and colon surface data; computing respective local descriptors; pairing point correspondences on the centerlines between the first and second images by minimal cost matching; extrapolating the centerline point correspondences to a 3-dimensional/3-dimensional (3D/3D) transformation between the first and second images. The method also includes selecting a position for a virtual endoscope in one of the images; associating an orthogonal reference frame with the virtual endoscope; and applying the 3D/3D transformation to the orthogonal reference frame so as to derive a corresponding transformed reference frame for the virtual endoscope in the other of the images.
摘要翻译：用于在第一和第二患者位置注册虚拟内窥镜检查图像的方法包括执行冒号分割和特征提取，包括每个图像的中心线和结肠表面数据; 重新取样中线和结肠表面数据; 计算相应的局部描述符; 通过最小成本匹配在第一和第二图像之间的中心线上的配对点对应; 将中心线点对应于第一和第二图像之间的三维/三维（3D / 3D）变换。该方法还包括在图像之一中选择虚拟内窥镜的位置; 将正交参考帧与虚拟内窥镜相关联; 以及将3D / 3D变换应用于正交参考帧，以便在另一个图像中导出虚拟内窥镜的对应变换的参考帧。

55. 发明授权

US07295869B2 Method and apparatus for needle placement and entry point determination in percutaneous procedures 有权
公开(公告)号：US07295869B2
公开(公告)日：2007-11-13
申请号：US10683653
申请日：2003-10-10
申请人： Benedicte Bascle , Nassir Navab , Bernhard Geiger
发明人： Benedicte Bascle , Nassir Navab , Bernhard Geiger
IPC分类号： A61B19/00
CPC分类号： A61B90/10 , A61B10/0233 , A61B34/10 , A61B2090/376
摘要： A method for determining the best entry point for a percutaneous procedure, such as with a biopsy needle, comprises selecting first and second arbitrary entry points on a patient; determining the three dimensional (3-D) orientation of the needle at the first arbitrary entry point for pointing the needle at the primary target; determining the 3-D orientation of the needle at the first arbitrary entry point for pointing the needle at the secondary target; determining the 3-D dimensional orientation of the needle at the second arbitrary entry point for pointing the needle at the primary target; determining the 3-D orientation of the needle at the second arbitrary entry point for pointing the needle at the secondary target; determining a 3-D line representing the intersection of a first plane containing the first arbitrary entry point, the primary target point, and the secondary target point, and a second plane containing the second arbitrary entry point, the primary target, and the secondary target point, whereby the 3-D line provides a position and orientation for the needle for performing needle biopsy of the primary target through the secondary target.

56. 发明授权

US07295868B2 Method and apparatus for needle placement and entry point determination in percutaneous procedures 有权
标题翻译：用于经皮手术中针头放置和入口点确定的方法和装置
公开(公告)号：US07295868B2
公开(公告)日：2007-11-13
申请号：US10683652
申请日：2003-10-10
申请人： Benedicte Bascle , Nassir Navab , Bernhard Geiger
发明人： Benedicte Bascle , Nassir Navab , Bernhard Geiger
IPC分类号： A61B19/00
CPC分类号： A61B90/10 , A61B10/0233 , A61B34/10 , A61B2090/376
摘要： A method for determining the best entry point for a percutaneous procedure, such as with a biopsy needle, comprises selecting first and second arbitrary entry points on a patient; determining the three dimensional (3-D) orientation of the needle at the first arbitrary entry point for pointing the needle at the primary target; determining the 3-D orientation of the needle at the first arbitrary entry point for pointing the needle at the secondary target; determining the 3-D dimensional orientation of the needle at the second arbitrary entry point for pointing the needle at the primary target; determining the 3-D orientation of the needle at the second arbitrary entry point for pointing the needle at the secondary target; determining a 3-D line representing the intersection of a first plane containing the first arbitrary entry point, the primary target point, and the secondary target point, and a second plane containing the second arbitrary entry point, the primary target, and the secondary target point, whereby the 3-D line provides a position and orientation for the needle for performing needle biopsy of the primary target through the secondary target.
摘要翻译：用于确定经皮程序的最佳入口点的方法，例如用活检针，包括选择患者的第一和第二任意入口点; 确定针在第一任意入口处的针的三维（3-D）取向，用于将针指向主要目标; 确定所述针在所述第一任意入口点处的3-D取向以将所述针指向所述次级靶; 确定针在第二任意入口点处的针的三维尺寸取向以将针指向主要目标; 确定针在第二任意进入点处的针的三维取向以将针指向次级靶; 确定表示包含第一任意入口点，主要目标点和次要目标点的第一平面的交点的3-D线以及包含第二任意入口点，主要目标和次要目标的第二平面点，其中3-D线提供针的位置和取向，用于通过次级靶进行主要靶的针活检。

57. 发明授权

US07245958B1 Trigonometric depth gauge for biopsy needle 失效
标题翻译：活检针三角测深仪
公开(公告)号：US07245958B1
公开(公告)日：2007-07-17
申请号：US08722724
申请日：1996-09-30
申请人： Nassir Navab , Bernhard Geiger
发明人： Nassir Navab , Bernhard Geiger
IPC分类号： A61B5/05
CPC分类号： A61B17/3403 , A61B6/12 , A61B6/4441 , A61B34/70 , A61B90/11 , A61B2017/3405 , A61B2090/034 , A61B2090/062 , A61B2090/376
摘要： Apparatus for determining a proper insertion depth of a biopsy needle to be inserted at a selected point on the body of a patient so that a sampling end of the needle just reaches to a designated target area within the body, comprises at least one straight calibrated pointing device, having a pivot point at one end thereof, and aligned to point through the selected point in a straight line passing through the designated target region, an image of the pointing device being formed on each of first and second image planes by utilizing radiation from respective first and second radiation source positions, along with images corresponding to the selected point and the target area. Needles are provided for casting an image on one at least one of the image planes, the needles being pivotably mounted at a further pivot point different from the pivot point of the pointing device and being constrained for movement in plane defined by the pivot point, the further pivot point and by the pointing device.
摘要翻译：用于确定要插入到患者身体上的选定点处的活检针的适当插入深度的装置，使得针的采样端刚刚到达身体内的指定目标区域，包括至少一个直线校准指示装置，在其一端具有枢转点，并且对齐以指向穿过指定目标区域的直线中的所选点，通过利用来自第一和第二图像平面的辐射形成指示装置的图像，各自的第一和第二辐射源位置，以及对应于所选择的点和目标区域的图像。提供用于在一个至少一个图像平面上投射图像的针，所述针可枢转地安装在不同于指示装置的枢转点的另一个枢转点处，并被限制为在由枢轴点限定的平面中移动，进一步的枢轴点和指示装置。

58. 发明授权

US07095401B2 System and method for gesture interface 有权
公开(公告)号：US07095401B2
公开(公告)日：2006-08-22
申请号：US10001553
申请日：2001-10-31
申请人： Che-Bin Liu , Visvanathan Ramesh , Bernhard Geiger
发明人： Che-Bin Liu , Visvanathan Ramesh , Bernhard Geiger
IPC分类号： G09G5/00
CPC分类号： G06F3/017 , G06K9/00335
摘要： A method for determining a gesture includes determining a change in a background of an image from a plurality of images, determining a object in the image, determining a trajectory of the object through the plurality of images, and classifying a gesture according to the trajectory of the object.

59. 发明申请

US20050107679A1 System and method for endoscopic path planning 有权
标题翻译：内窥镜路径规划系统及方法
公开(公告)号：US20050107679A1
公开(公告)日：2005-05-19
申请号：US10888368
申请日：2004-07-09
申请人： Bernhard Geiger , Atilla Kiraly , David Naidich , Carol Novak
发明人： Bernhard Geiger , Atilla Kiraly , David Naidich , Carol Novak
IPC分类号： A61B5/05 , A61B19/00 , G06T7/00 , G06T17/40
CPC分类号： G06T19/003 , A61B34/10 , A61B90/36 , A61B2090/374 , G06T2210/41
摘要： A system and method for endoscopic path planning is provided. The method comprises: identifying a target in a lung, wherein the target is located in a peripheral airway of the lung; generating an endoscopic path to the target, wherein a peripheral artery is used as a surrogate for the peripheral airway; and viewing the endoscopic path.
摘要翻译：提供了内窥镜路径规划的系统和方法。该方法包括：识别肺中的靶，其中所述靶位于肺的外周气道中; 产生到目标的内窥镜路径，其中外围动脉用作周边气道的替代物; 并观察内窥镜路径。

60. 发明授权

US06711433B1 Method for providing a virtual contrast agent for augmented angioscopy 有权
标题翻译：提供用于增强血管镜检查的虚拟造影剂的方法
公开(公告)号：US06711433B1
公开(公告)日：2004-03-23
申请号：US09408930
申请日：1999-09-30
申请人： Bernhard Geiger , Nassir Navab
发明人： Bernhard Geiger , Nassir Navab
IPC分类号： A61B600
CPC分类号： A61B6/481 , A61B5/055 , A61B6/463 , A61B6/504 , A61B6/5235 , G06T11/008 , G06T17/00 , G06T2211/404
摘要： A method for providing a virtual contrast agent for blood vessels in a body portion for angioscopy comprising deriving data from a 3D model using, for example, magnetic resonance imaging, computerized tomography (CT), and 3D angio. The data is segmented to provide a segmented 3D model of the blood vessels. A first procedure image is made with a contrast agent present. The 3D model is then registered with the first procedural image and “virtual camera parameters” are obtained. The 3D model is rendered and overlaid onto a second procedure image without contrast, whereby a virtual contrast is achieved.
摘要翻译：一种用于在用于血管镜检查的身体部分中为血管提供虚拟造影剂的方法，包括使用例如磁共振成像，计算机断层摄影（CT）和3D血管从3D模型导出数据。数据被分段以提供血管的分段3D模型。使用存在的造影剂进行第一程序图像。然后将3D模型与第一程序图像一起注册，并获得“虚拟相机参数”。将3D模型渲染并覆盖到没有对比度的第二过程图像上，从而实现虚拟对比。

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