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    Method and System for 3D Cardiac Motion Estimation from Single Scan of C-Arm Angiography
    51.
    发明申请
    Method and System for 3D Cardiac Motion Estimation from Single Scan of C-Arm Angiography 有权
    C型血管造影单次扫描三维心脏运动估计方法与系统

    公开(公告)号：US20120189185A1

    公开(公告)日：2012-07-26

    申请号：US13346818

    申请日：2012-01-10

    申请人： Mingqing Chen ,  Yefeng Zheng ,  Gareth Funka-Lea ,  Guenter Lauritsch ,  Jan Boese ,  Dorin Comaniciu

    发明人： Mingqing Chen ,  Yefeng Zheng ,  Gareth Funka-Lea ,  Guenter Lauritsch ,  Jan Boese ,  Dorin Comaniciu

    IPC分类号： G06T5/00

    CPC分类号： G06T7/0083 ,  G06T7/12 ,  G06T7/149 ,  G06T2207/10081 ,  G06T2207/30048

    摘要： A method and system for estimating 3D cardiac motion from a single C-arm angiography scan is disclosed. An initial 3D volume is reconstructed from a plurality of 2D projection images acquired in a single C-arm scan. A static mesh is extracted by segmenting an object in the initial 3D volume. The static mesh is projected to each of the 2D projection images. A cardiac phase is determined for each of the 2D projection images. A deformed mesh is generated for each of a plurality of cardiac phases based on a 2D contour of the object and the projected mesh in each of the 2D projection images of that cardiac phase.

    摘要翻译： 公开了一种用于从单个C臂血管造影扫描估计3D心脏运动的方法和系统。 从在单个C臂扫描中获取的多个2D投影图像重建初始3D体积。 通过在初始3D体积中分割对象来提取静态网格。 将静态网格投影到每个2D投影图像。 为每个2D投影图像确定心脏相位。 基于对象的2D轮廓和该心脏相的每个2D投影图像中的投影网格，为多个心脏相位中的每一个产生变形的网格。

    Method and system for heart isolation in cardiac computed tomography volumes for patients with coronary artery bypasses
    54.
    发明授权
    Method and system for heart isolation in cardiac computed tomography volumes for patients with coronary artery bypasses 有权
    冠状动脉旁路患者心脏计算机断层摄影术中心脏隔离的方法和系统

    公开(公告)号：US08675943B2

    公开(公告)日：2014-03-18

    申请号：US13295217

    申请日：2011-11-14

    申请人： Yefeng Zheng ,  Fernando Vega-Higuera ,  Dorin Comaniciu

    发明人： Yefeng Zheng ,  Fernando Vega-Higuera ,  Dorin Comaniciu

    IPC分类号： G06K9/00

    CPC分类号： G06T7/149 ,  G06T7/11 ,  G06T2207/10081 ,  G06T2207/20124 ,  G06T2207/30048

    摘要： A method and system for isolating the heart in a 3D volume, such as a cardiac CT volume, for patients with coronary artery bypasses is disclosed. An initial heart isolation mask is extracted from a 3D volume, such as a cardiac CT volume. The aortic root and ascending aorta are segmented in the 3D volume, resulting in an aorta mesh. The aorta mesh is expanded to include bypass coronary arteries. An expanded heart isolation mask is generated by combining the initial heart isolation mask with an expanded aorta mask defined by the expanded aorta mesh.

    摘要翻译： 公开了一种用于分离冠状动脉旁路患者的3D体积（例如心脏CT体积）中的心脏的方法和系统。 从3D体积（例如心脏CT体积）提取初始心脏隔离掩模。 主动脉根部和升主动脉在3D体积中分段，导致主动脉网。 主动脉网扩张包括旁路冠状动脉。 通过将初始心脏隔离掩模与由扩张的主动脉网所定义的扩张主动脉掩膜组合来产生扩张的心脏隔离掩模。

    Method and System for Pericardium Based Model Fusion of Pre-operative and Intra-operative Image Data for Cardiac Interventions
    55.
    发明申请
    Method and System for Pericardium Based Model Fusion of Pre-operative and Intra-operative Image Data for Cardiac Interventions 有权
    心包干预术前和术中图像数据心包模型融合方法与系统

    公开(公告)号：US20130294667A1

    公开(公告)日：2013-11-07

    申请号：US13765712

    申请日：2013-02-13

    申请人： Yefeng Zheng ,  Razvan Ioan Ionasec ,  Sasa Grbic ,  Matthias John ,  Dorin Comaniciu

    发明人： Yefeng Zheng ,  Razvan Ioan Ionasec ,  Sasa Grbic ,  Matthias John ,  Jan Boese ,  Dorin Comaniciu

    IPC分类号： G06T7/00

    CPC分类号： G06T7/00 ,  A61B6/12 ,  A61B6/4441 ,  A61B6/503 ,  A61B6/5235 ,  G06F19/00 ,  G06K9/6247 ,  G06T7/0012 ,  G06T7/30 ,  G06T2207/10081 ,  G06T2207/30048 ,  G06T2207/30101

    摘要： A method and system for model based fusion pre-operative image data, such as computed tomography (CT), and intra-operative C-arm CT is disclosed. A first pericardium model is segmented in the pre-operative image data and a second pericardium model is segmented in a C-arm CT volume. A deformation field is estimated between the first pericardium model and the second pericardium model. A model of a target cardiac structure, such as a heart chamber model or an aorta model, extracted from the pre-operative image data is fused with the C-arm CT volume based on the estimated deformation field between the first pericardium model and the second pericardium model. An intelligent weighted average may be used improve the model based fusion results using models of the target cardiac structure extracted from pre-operative image data of patients other than a current patient.

    摘要翻译： 公开了一种用于基于模型的融合术前图像数据的方法和系统，例如计算机断层摄影（CT）和手术中C臂CT。 在手术前图像数据中分割第一心包模型，并在C臂CT体积中分割第二心包模型。 在第一心包模型和第二心包模型之间估计变形场。 基于估计的第一心包模型与第二心包模型之间的变形场，将从手术前图像数据提取的目标心脏结构（例如心室模型或主动脉模型）的模型与C臂CT体积融合 心包模型。 可以使用智能加权平均值，使用从当前患者以外的患者的术前图像数据提取的目标心脏结构模型来改进基于模型的融合结果。

    Method and System for Device Detection in 2D Medical Images
    56.
    发明申请
    Method and System for Device Detection in 2D Medical Images 有权
    2D医学图像中器件检测的方法和系统

    公开(公告)号：US20130011030A1

    公开(公告)日：2013-01-10

    申请号：US13539702

    申请日：2012-07-02

    申请人： Stratis Tzoumas ,  Peng Wang ,  Yefeng Zheng ,  Matthias John ,  Dorin Comaniciu

    发明人： Stratis Tzoumas ,  Peng Wang ,  Yefeng Zheng ,  Matthias John ,  Dorin Comaniciu

    IPC分类号： G06K9/62

    CPC分类号： G06K9/6282 ,  G06T7/74 ,  G06T2207/10064 ,  G06T2207/30021

    摘要： A method and system for device detection in a 2D medical image is disclosed. In order to account for shape variation of a 3D object in a 2D imaging plane, a hierarchical tree-structured array of trained classifiers is used to detect a 3D object, such as a pigtail catheter in a 2D medical image, such as a fluoroscopic image. The hierarchical tree-structured array of trained classifiers increases a dimensionality of the search space with each hierarchical level, and as the search space is increased, the classification is split into object sub-classes using trained classifiers independently trained for each sub-class.

    摘要翻译： 公开了一种用于2D医学图像中的装置检测的方法和系统。 为了考虑2D成像平面中3D对象的形状变化，使用训练分类器的分层树结构阵列来检测3D对象，例如2D医学图像中的尾纤导管，例如荧光透视图像 。 经过训练的分类器的层次树结构的阵列增加了每个层级的搜索空间的维度，并且随着搜索空间的增加，使用针对每个子类独立训练的训练分类器将分类分为对象子类。

    Method and System for Heart Isolation in Cardiac Computed Tomography Volumes for Patients with Coronary Artery Bypasses
    59.
    发明申请
    Method and System for Heart Isolation in Cardiac Computed Tomography Volumes for Patients with Coronary Artery Bypasses 有权
    心脏计算机断层摄影术心脏隔离方法与系统用于冠状动脉旁路术患者

    公开(公告)号：US20120134564A1

    公开(公告)日：2012-05-31

    申请号：US13295217

    申请日：2011-11-14

    申请人： Yefeng Zheng ,  Fernando Vega-Higuera ,  Dorin Comaniciu

    发明人： Yefeng Zheng ,  Fernando Vega-Higuera ,  Dorin Comaniciu

    IPC分类号： G06K9/00

    CPC分类号： G06T7/149 ,  G06T7/11 ,  G06T2207/10081 ,  G06T2207/20124 ,  G06T2207/30048

    摘要： A method and system for isolating the heart in a 3D volume, such as a cardiac CT volume, for patients with coronary artery bypasses is disclosed. An initial heart isolation mask is extracted from a 3D volume, such as a cardiac CT volume. The aortic root and ascending aorta are segmented in the 3D volume, resulting in an aorta mesh. The aorta mesh is expanded to include bypass coronary arteries. An expanded heart isolation mask is generated by combining the initial heart isolation mask with an expanded aorta mask defined by the expanded aorta mesh.

    摘要翻译： 公开了一种用于分离冠状动脉旁路患者的3D体积（例如心脏CT体积）中的心脏的方法和系统。 从3D体积（例如心脏CT体积）提取初始心脏隔离掩模。 主动脉根部和升主动脉在3D体积中分段，导致主动脉网。 主动脉网扩张包括旁路冠状动脉。 通过将初始心脏隔离掩模与由扩张的主动脉网所定义的扩张主动脉掩膜组合来产生扩张的心脏隔离掩模。