-
公开(公告)号：US08582854B2
公开(公告)日：2013-11-12
申请号：US12487121
申请日：2009-06-18
IPC分类号： G06K9/00
CPC分类号： G06K9/00 , G06K2209/05 , G06T7/11 , G06T7/143 , G06T2207/10081 , G06T2207/20076 , G06T2207/30101
摘要： A method and system for coronary artery detection in 3D cardiac volumes is disclosed. The heart chambers are segmented in the cardiac volume, and an initial estimation of a coronary artery is generated based on the segmented heart chambers. The initial estimation of the coronary artery is then refined based on local information in the cardiac volume in order to detect the coronary artery in the cardiac volume. The detected coronary artery can be extended using 3D dynamic programming.
摘要翻译： 公开了用于3D心脏体积中冠状动脉检测的方法和系统。 心室在心脏体积中分段，并且基于分段心室产生冠状动脉的初始估计。 然后基于心脏体积中的局部信息来改进冠状动脉的初始估计，以便在心脏体积中检测冠状动脉。 检测到的冠状动脉可以使用3D动态规划进行扩展。
-
公开(公告)号：US20100067760A1
公开(公告)日：2010-03-18
申请号：US12487121
申请日：2009-06-18
IPC分类号： G06K9/00
CPC分类号： G06K9/00 , G06K2209/05 , G06T7/11 , G06T7/143 , G06T2207/10081 , G06T2207/20076 , G06T2207/30101
摘要： A method and system for coronary artery detection in 3D cardiac volumes is disclosed. The heart chambers are segmented in the cardiac volume, and an initial estimation of a coronary artery is generated based on the segmented heart chambers. The initial estimation of the coronary artery is then refined based on local information in the cardiac volume in order to detect the coronary artery in the cardiac volume. The detected coronary artery can be extended using 3D dynamic programming.
摘要翻译： 公开了用于3D心脏体积中冠状动脉检测的方法和系统。 心室在心脏体积中分段，并且基于分段心室产生冠状动脉的初始估计。 然后基于心脏体积中的局部信息来改进冠状动脉的初始估计，以便检测心脏体积中的冠状动脉。 检测到的冠状动脉可以使用3D动态规划进行扩展。
-
3.发明申请Method and System for Automatic Detection of Coronary Stenosis in Cardiac Computed Tomography Data 有权心脏计算机断层扫描数据冠状动脉狭窄自动检测方法与系统公开(公告)号：US20100076296A1
公开(公告)日：2010-03-25
申请号：US12487223
申请日：2009-06-18
IPC分类号： A61B5/05
CPC分类号： G06T7/13 , G06T7/0012 , G06T2207/10081 , G06T2207/20044 , G06T2207/20081 , G06T2207/30048 , G06T2207/30101
摘要： A method and system for automatic coronary stenosis detection in computed tomography (CT) data is disclosed. Coronary artery centerlines are obtained in an input cardiac CT volume. A trained classifier, such as a probabilistic boosting tree (PBT) classifier, is used to detect stenosis regions along the centerlines in the input cardiac CT volume. The classifier classifies each of the control points that define the coronary artery centerlines as a stenosis point or a non-stenosis point.
摘要翻译： 公开了一种计算机断层扫描（CT）数据中自动冠状动脉狭窄检测的方法和系统。 在输入的心脏CT体积中获得冠状动脉中心线。 训练有素的分类器，如概率增强树（PBT）分类器，用于检测输入心脏CT体积中沿着中心线的狭窄区域。 分类器将定义冠状动脉中心线的每个控制点分类为狭窄点或非狭窄点。
-
4.发明授权公开(公告)号：US09761004B2
公开(公告)日：2017-09-12
申请号：US12487223
申请日：2009-06-18
CPC分类号： G06T7/13 , G06T7/0012 , G06T2207/10081 , G06T2207/20044 , G06T2207/20081 , G06T2207/30048 , G06T2207/30101
摘要： A method and system for automatic coronary stenosis detection in computed tomography (CT) data is disclosed. Coronary artery centerlines are obtained in an input cardiac CT volume. A trained classifier, such as a probabilistic boosting tree (PBT) classifier, is used to detect stenosis regions along the centerlines in the input cardiac CT volume. The classifier classifies each of the control points that define the coronary artery centerlines as a stenosis point or a non-stenosis point.
-
5.发明授权Method and system for automatic detection and classification of coronary stenoses in cardiac CT volumes 有权心脏CT体积冠状动脉狭窄自动检测和分类方法及系统公开(公告)号：US08526699B2
公开(公告)日：2013-09-03
申请号：US13040716
申请日：2011-03-04
申请人： Sushil Mittal , Yefeng Zheng , Bogdan Georgescu , Fernando Vega-Higuera , Shaohua Kevin Zhou , Dorin Comaniciu , Michael Kelm , Alexey Tsymbal , Dominik Bernhardt
发明人： Sushil Mittal , Yefeng Zheng , Bogdan Georgescu , Fernando Vega-Higuera , Shaohua Kevin Zhou , Dorin Comaniciu , Michael Kelm , Alexey Tsymbal , Dominik Bernhardt
CPC分类号： G06T7/0016 , G06T7/143 , G06T2207/10081 , G06T2207/20081 , G06T2207/30101 , G06T2207/30172
摘要： A method and system for providing detecting and classifying coronary stenoses in 3D CT image data is disclosed. Centerlines of coronary vessels are extracted from the CT image data. Non-vessel regions are detected and removed from the coronary vessel centerlines. The cross-section area of the lumen is estimated based on the coronary vessel centerlines using a trained regression function. Stenosis candidates are detected in the coronary vessels based on the estimated lumen cross-section area, and the significant stenosis candidates are automatically classified as calcified, non-calcified, or mixed.
摘要翻译： 公开了一种在3D CT图像数据中提供冠状动脉狭窄检测和分类的方法和系统。 从CT图像数据中提取冠脉血管的中心线。 从血管中心线检测和移除非血管区域。 使用经过训练的回归函数，基于冠状血管中心线估计管腔的横截面面积。 基于估计的管腔横截面积在冠状血管中检测狭窄候选物，并且显着狭窄候选物被自动分类为钙化，非钙化或混合。
-
6.发明申请Method and System for Automatic Detection and Classification of Coronary Stenoses in Cardiac CT Volumes 有权心脏CT卷冠状动脉狭窄自动检测与分类方法与系统公开(公告)号：US20110224542A1
公开(公告)日：2011-09-15
申请号：US13040716
申请日：2011-03-04
申请人： Sushil Mittal , Yefeng Zheng , Bogdan Georgescu , Fernando Vega-Higuera , Shaohua Kevin Zhou , Dorin Comaniciu , Michael Kelm , Alexey Tsymbal , Dominik Bernhardt
发明人： Sushil Mittal , Yefeng Zheng , Bogdan Georgescu , Fernando Vega-Higuera , Shaohua Kevin Zhou , Dorin Comaniciu , Michael Kelm , Alexey Tsymbal , Dominik Bernhardt
IPC分类号： A61B6/03
CPC分类号： G06T7/0016 , G06T7/143 , G06T2207/10081 , G06T2207/20081 , G06T2207/30101 , G06T2207/30172
摘要： A method and system for providing detecting and classifying coronary stenoses in 3D CT image data is disclosed. Centerlines of coronary vessels are extracted from the CT image data. Non-vessel regions are detected and removed from the coronary vessel centerlines. The cross-section area of the lumen is estimated based on the coronary vessel centerlines using a trained regression function. Stenosis candidates are detected in the coronary vessels based on the estimated lumen cross-section area, and the significant stenosis candidates are automatically classified as calcified, non-calcified, or mixed.
摘要翻译： 公开了一种在3D CT图像数据中提供冠状动脉狭窄检测和分类的方法和系统。 从CT图像数据中提取冠脉血管的中心线。 从血管中心线检测和移除非血管区域。 使用经过训练的回归函数，基于冠状血管中心线估计管腔的横截面面积。 基于估计的管腔横截面积在冠状血管中检测狭窄候选物，并且显着狭窄候选物被自动分类为钙化，非钙化或混合。
-
公开(公告)号：US20100240996A1
公开(公告)日：2010-09-23
申请号：US12702036
申请日：2010-02-08
申请人： Razvan Ioan Ionasec , Ingmar Voigt , Yang Wang , Bogdan Georgescu , Helene C. Houle , Dorin Comaniciu , Fernando Vega-Higuera
发明人： Razvan Ioan Ionasec , Ingmar Voigt , Yang Wang , Bogdan Georgescu , Helene C. Houle , Dorin Comaniciu , Fernando Vega-Higuera
CPC分类号： G06T7/0016 , G06T7/251 , G06T7/262 , G06T7/277 , G06T2207/10016 , G06T2207/10076 , G06T2207/10136 , G06T2207/20016 , G06T2207/30048 , G06T2207/30241
摘要： Heart valve operation is assessed with patient-specific medical diagnostic imaging data. To deal with the complex motion of the passive valve tissue, a hierarchal model is used. Rigid global motion of the overall valve, non-rigid local motion of landmarks of the valve, and surface motion of the valve are modeled sequentially. For the non-rigid local motion, a spectral trajectory approach is used in the model to determine location and motion of the landmarks more efficiently than detection and tracking. Given efficiencies in processing, more than one valve may be modeled at a same time. A graphic overlay representing the valve in four dimensions and/or quantities may be provided during an imaging session. One or more of these features may be used in combination or independently.
摘要翻译： 心脏瓣膜手术用患者特定的医学诊断成像数据进行评估。 为了处理被动瓣膜组织的复杂运动，使用了层次模型。 总体阀门的刚性全局运动，阀门的标志的非刚性局部运动以及阀门的表面运动被依次建模。 对于非刚性局部运动，在模型中使用频谱轨迹方法，以比检测和跟踪更有效地确定地标的位置和运动。 在处理效率方面，可以同时对多个阀进行建模。 可以在成像会话期间提供表示四维和/或数量的阀的图形覆盖。 这些特征中的一个或多个可以组合使用或独立使用。
-
8.发明授权Method and system for intervention planning for transcatheter aortic valve implantation from 3D computed tomography data 有权通过3D计算机断层扫描数据进行经导管主动脉瓣植入术的干预计划方法和系统公开(公告)号：US08934693B2
公开(公告)日：2015-01-13
申请号：US13682820
申请日：2012-11-21
申请人： Sasa Grbic , Razvan Ioan Ionasec , Fernando Vega-Higuera , Dominik Bernhardt , Bogdan Georgescu , Dorin Comaniciu
发明人： Sasa Grbic , Razvan Ioan Ionasec , Fernando Vega-Higuera , Dominik Bernhardt , Bogdan Georgescu , Dorin Comaniciu
CPC分类号： G06T7/0012 , G06T7/75 , G06T2207/10081 , G06T2207/20081 , G06T2207/30048 , G06T2207/30101
摘要： A method and system for automated intervention planning for transcatheter aortic valve implantations using computed tomography (CT) data is disclosed. A patient-specific aortic valve model is detected in a CT volume of a patient. The patient-specific aortic valve model is detected by detecting a global location of the patient-specific aortic valve model in the CT volume, detecting aortic valve landmarks based on the detected global location, and fitting an aortic root surface model. Angulation parameters of a C-arm imaging device for acquiring intra-operative fluoroscopic images and anatomical measurements of the aortic valve are automatically determined based on the patient-specific aortic valve model.
摘要翻译： 公开了一种使用计算机断层扫描（CT）数据进行经导管主动脉瓣植入术的自动干预计划的方法和系统。 在患者的CT体积中检测患者特异性主动脉瓣模型。 通过检测CT体积中患者特异性主动脉瓣模型的全局位置检测患者特异性主动脉瓣模型，根据检测到的全局位置检测主动脉瓣标志，并配合主动脉根部表面模型。 基于患者特异性主动脉瓣模型自动确定用于获取手术中透视图像和主动脉瓣的解剖学测量的C形臂成像装置的角度参数。
-
公开(公告)号：US08771189B2
公开(公告)日：2014-07-08
申请号：US12702036
申请日：2010-02-08
申请人： Razvan Ioan Ionasec , Ingmar Voigt , Yang Wang , Bogdan Georgescu , Helene C. Houle , Dorin Comaniciu , Fernando Vega-Higuera
发明人： Razvan Ioan Ionasec , Ingmar Voigt , Yang Wang , Bogdan Georgescu , Helene C. Houle , Dorin Comaniciu , Fernando Vega-Higuera
IPC分类号： A61B8/00
CPC分类号： G06T7/0016 , G06T7/251 , G06T7/262 , G06T7/277 , G06T2207/10016 , G06T2207/10076 , G06T2207/10136 , G06T2207/20016 , G06T2207/30048 , G06T2207/30241
摘要： Heart valve operation is assessed with patient-specific medical diagnostic imaging data. To deal with the complex motion of the passive valve tissue, a hierarchal model is used. Rigid global motion of the overall valve, non-rigid local motion of landmarks of the valve, and surface motion of the valve are modeled sequentially. For the non-rigid local motion, a spectral trajectory approach is used in the model to determine location and motion of the landmarks more efficiently than detection and tracking. Given efficiencies in processing, more than one valve may be modeled at a same time. A graphic overlay representing the valve in four dimensions and/or quantities may be provided during an imaging session. One or more of these features may be used in combination or independently.
摘要翻译： 心脏瓣膜手术用患者特定的医学诊断成像数据进行评估。 为了处理被动瓣膜组织的复杂运动，使用了层次模型。 总体阀门的刚性全局运动，阀门的标志的非刚性局部运动以及阀门的表面运动被依次建模。 对于非刚性局部运动，在模型中使用频谱轨迹方法，以比检测和跟踪更有效地确定地标的位置和运动。 在处理效率方面，可以同时对多个阀进行建模。 可以在成像会话期间提供表示四维和/或数量的阀的图形覆盖。 这些特征中的一个或多个可以组合使用或独立使用。
-
10.发明申请Method and System for Intervention Planning for Transcatheter Aortic Valve Implantation from 3D Computed Tomography Data 有权通过3D计算机断层扫描数据进行经导管主动脉瓣植入的干预计划方法和系统公开(公告)号：US20130129173A1
公开(公告)日：2013-05-23
申请号：US13682820
申请日：2012-11-21
申请人： Sasa Grbic , Razvan Ioan Ionasec , Fernando Vega-Higuera , Dominik Bernhardt , Bogdan Georgescu , Dorin Comaniciu
发明人： Sasa Grbic , Razvan Ioan Ionasec , Fernando Vega-Higuera , Dominik Bernhardt , Bogdan Georgescu , Dorin Comaniciu
IPC分类号： G06T7/00
CPC分类号： G06T7/0012 , G06T7/75 , G06T2207/10081 , G06T2207/20081 , G06T2207/30048 , G06T2207/30101
摘要： A method and system for automated intervention planning for transcatheter aortic valve implantations using computed tomography (CT) data is disclosed. A patient-specific aortic valve model is detected in a CT volume of a patient. The patient-specific aortic valve model is detected by detecting a global location of the patient-specific aortic valve model in the CT volume, detecting aortic valve landmarks based on the detected global location, and fitting an aortic root surface model. Angulation parameters of a C-arm imaging device for acquiring intra-operative fluoroscopic images and anatomical measurements of the aortic valve are automatically determined based on the patient-specific aortic valve model.
摘要翻译： 公开了一种使用计算机断层扫描（CT）数据进行经导管主动脉瓣植入术的自动干预计划的方法和系统。 在患者的CT体积中检测患者特异性主动脉瓣模型。 通过检测CT体积中患者特异性主动脉瓣模型的全局位置检测患者特异性主动脉瓣模型，根据检测到的全局位置检测主动脉瓣标志，并配合主动脉根部表面模型。 基于患者特异性主动脉瓣模型自动确定用于获取手术中透视图像和主动脉瓣的解剖学测量的C形臂成像装置的角度参数。
-
-
-
-
-
-
-
-
-
搜索结果
405 条记录 (耗时 0.027 秒)
