Method and system for patient-specific hemodynamic assessment of virtual stent implantation
    112.
    发明授权
    Method and system for patient-specific hemodynamic assessment of virtual stent implantation 有权
    虚拟支架植入患者特异性血液动力学评估方法与系统

    公开(公告)号:US08983809B2

    公开(公告)日:2015-03-17

    申请号:US13311989

    申请日:2011-12-06

    IPC分类号: G06F17/50 G06F19/00 A61F2/90

    摘要: A method and system for assessment of virtual stent implantation in an aortic aneurysm is disclosed. A patient-specific 4D anatomical model of the aorta is generated from the 4D medical imaging data. A model representing mechanical properties of the aorta wall is adjusted to reflect changes due to aneurysm growth at a plurality of time stages. A stable deformation configuration of the aorta is generated for each time stages by performing fluid structure interaction (FSI) simulations using the patient-specific 4D anatomical model at each time stage based on the adjusted model representing the mechanical properties of the aorta wall at each time stage. Virtual stent implantation is performed for each stable deformation configuration of the aorta and FSI simulations are performed for each virtual stent implantation.

    摘要翻译: 公开了一种用于评估主动脉瘤中虚拟支架植入的方法和系统。 从4D医学成像数据生成主动脉的患者特定的4D解剖模型。 调整表示主动脉壁的机械特性的模型,以反映在多个时间段由于动脉瘤生长引起的变化。 通过使用每个时间阶段使用患者特定的4D解剖模型的流体结构相互作用(FSI)模拟,基于每次代表主动脉壁的机械性质的调整模型,对每个时间阶段产生主动脉的稳定变形构型 阶段。 对于主动脉的每个稳定变形构型执行虚拟支架植入,并且对于每个虚拟支架植入进行FSI模拟。

    Valve treatment simulation from medical diagnostic imaging data
    113.
    发明授权
    Valve treatment simulation from medical diagnostic imaging data 有权
    医疗诊断成像数据的阀门治疗模拟

    公开(公告)号:US08920322B2

    公开(公告)日:2014-12-30

    申请号:US13411711

    申请日:2012-03-05

    摘要: Valve treatment simulation is performed from patient specific imaging data for therapy planning. A model of the valve may be generated from the patient specific data automatically or with very minimal user indication of anatomy locations relative to an image. Any characteristics for the valve not extracted from images of the patient may be added to create a volumetric model. Added characteristics include chordae, such as chordae length and leaflet fiber direction. The characteristics may be adjusted based on user feedback and/or comparison with images of the patient. The effect of therapy on closure of the valve may be simulated from the model. For instance, mitral clip intervention is simulated on the patient-specific model. Valves are deformed according to the clip location. Valve closure is then simulated to predict effect of the therapy in terms of mitral regurgitation.

    摘要翻译: 从治疗计划的患者特异性成像数据进行瓣膜治疗模拟。 阀的模型可以从患者特定数据自动生成,或者相对于图像的解剖位置的非常小的用户指示来生成。 可以添加不从患者图像中提取的瓣膜的任何特征以产生体积模型。 增加的特征包括腱索,如腱索长度和小叶纤维方向。 可以基于用户反馈和/或与患者的图像进行比较来调整特征。 可以从模型中模拟治疗对瓣膜闭合的影响。 例如,对患者特异性模型模拟二尖瓣夹持干预。 阀门根据夹子位置变形。 然后模拟瓣膜闭合以预测治疗在二尖瓣反流方面的效果。

    Method and System for Patient Specific Planning of Cardiac Therapies on Preoperative Clinical Data and Medical Images
    115.
    发明申请
    Method and System for Patient Specific Planning of Cardiac Therapies on Preoperative Clinical Data and Medical Images 有权
    心脏手术患者术前临床资料和医学图像的方法与系统

    公开(公告)号:US20130197881A1

    公开(公告)日:2013-08-01

    申请号:US13754174

    申请日:2013-01-30

    IPC分类号: G06F17/50

    摘要: A method and system for patient-specific planning of cardiac therapy, such as cardiac resynchronization therapy (CRT), based on preoperative clinical data and medical images, such as ECG data, magnetic resonance imaging (MRI) data, and ultrasound data, is disclosed. A patient-specific anatomical model of the left and right ventricles is generated from medical image data of a patient. A patient-specific computational heart model, which comprises cardiac electrophysiology, biomechanics and hemodynamics, is generated based on the patient-specific anatomical model of the left and right ventricles and clinical data. Simulations of cardiac therapies, such as CRT at one or more anatomical locations are performed using the patient-specific computational heart model. Changes in clinical cardiac parameters are then computed from the patient-specific model, constituting predictors of therapy outcome useful for therapy planning and optimization.

    摘要翻译: 公开了基于术前临床数据和医学图像(例如ECG数据,磁共振成像(MRI)数据和超声数据)的心脏治疗的患者特异性规划的方法和系统,例如心脏再同步治疗(CRT) 。 从患者的医学图像数据产生左心室和右心室的患者特异性解剖模型。 基于左心室和右心室的患者特异性解剖模型和临床数据生成包括心脏电生理学,生物力学和血液动力学的患者特异性计算心脏模型。 使用患者特异性计算心脏模型进行心脏治疗的模拟,例如在一个或多个解剖位置处的CRT。 然后从患者特异性模型计算临床心脏参数的变化,构成对治疗计划和优化有用的治疗结果的预测因子。

    Method and system for left ventricle detection in 2D magnetic resonance images using ranking based multi-detector aggregation
    116.
    发明授权
    Method and system for left ventricle detection in 2D magnetic resonance images using ranking based multi-detector aggregation 有权
    使用基于排序的多检测器聚合的2D磁共振图像中左心室检测的方法和系统

    公开(公告)号:US08340385B2

    公开(公告)日:2012-12-25

    申请号:US12630061

    申请日:2009-12-03

    IPC分类号: G06K9/00

    摘要: A method and system for left ventricle (LV) detection in 2D magnetic resonance imaging (MRI) images is disclosed. In order to detect the LV in a 2D MRI image, a plurality of LV candidates are detected, for example using marginal space learning (MSL) based detection. Candidates for distinctive anatomic landmarks associated with the LV are then detected in the 2D MRI image. In particular, apex candidates and base candidates are detected in the 2D MRI image. One of the LV candidates is selected as a final LV detection result by ranking the LV candidates based on the LV candidates, the apex candidates, and the base candidates using a trained ranking model.

    摘要翻译: 公开了一种用于2D磁共振成像(MRI)图像中左心室(LV)检测的方法和系统。 为了检测2D MRI图像中的LV,例如使用基于边缘空间学习(MSL)的检测来检测多个LV候选。 然后在2D MRI图像中检测与LV相关的特征性解剖学标记的候选者。 特别地,在2D MRI图像中检测到顶点候选和基础候选。 通过使用训练排名模型,基于LV候选,顶点候选和基础候选对LV候选进行排名,将LV候选者中的一个选择为最终的LV检测结果。

    Method and System for Detection of Contrast Injection Fluoroscopic Image Sequences
    117.
    发明申请
    Method and System for Detection of Contrast Injection Fluoroscopic Image Sequences 审中-公开
    对比注射荧光检查图像序列检测方法与系统

    公开(公告)号:US20120257807A1

    公开(公告)日:2012-10-11

    申请号:US13455619

    申请日:2012-04-25

    IPC分类号: G06K9/00

    摘要: A method and system for detecting a spatial and temporal location of a contrast injection in a fluoroscopic image sequence is disclosed. Training volumes generated by stacking a sequence of 2D fluoroscopic images in time order are annotated with ground truth contrast injection points. A heart rate is globally estimated for each training volume, and local frequency and phase is estimated in a neighborhood of the ground truth contrast injection point for each training volume. Frequency and phase invariant features are extracted from each training volume based on the heart rate, local frequency and phase, and a detector is trained based on the training volumes and the features extracted for each training volume. The detector can be used to detect the spatial and temporal location of a contrast injection in a fluoroscopic image sequence.

    摘要翻译: 公开了一种用于检测透视图像序列中的对比度注入的空间和时间位置的方法和系统。 通过以时间顺序堆叠一系列2D透视图像而产生的训练体积用地面真实对比度注入点注释。 对于每个训练体积,全局估计心率,并且在每个训练体积的地面真实对比度注入点的邻域中估计局部频率和相位。 基于心率,局部频率和相位从每个训练体积中提取频率和相位不变特征,并且基于训练量和针对每个训练体积提取的特征来训练检测器。 检测器可用于检测透视图像序列中对比度注入的空间和时间位置。

    VALVE TREATMENT SIMULATION FROM MEDICAL DIAGNOSTIC IMAGING DATA
    118.
    发明申请
    VALVE TREATMENT SIMULATION FROM MEDICAL DIAGNOSTIC IMAGING DATA 有权
    医学诊断成像数据的阀门处理模拟

    公开(公告)号:US20120232386A1

    公开(公告)日:2012-09-13

    申请号:US13411711

    申请日:2012-03-05

    IPC分类号: A61B8/00

    摘要: Valve treatment simulation is performed from patient specific imaging data for therapy planning. A model of the valve may be generated from the patient specific data automatically or with very minimal user indication of anatomy locations relative to an image. Any characteristics for the valve not extracted from images of the patient may be added to create a volumetric model. Added characteristics include chordae, such as chordae length and leaflet fiber direction. The characteristics may be adjusted based on user feedback and/or comparison with images of the patient. The effect of therapy on closure of the valve may be simulated from the model. For instance, mitral clip intervention is simulated on the patient-specific model. Valves are deformed according to the clip location. Valve closure is then simulated to predict effect of the therapy in terms of mitral regurgitation.

    摘要翻译: 从治疗计划的患者特异性成像数据进行瓣膜治疗模拟。 阀的模型可以从患者特定数据自动生成,或者相对于图像的解剖位置的非常小的用户指示来生成。 可以添加不从患者图像中提取的瓣膜的任何特征以产生体积模型。 增加的特征包括腱索,如腱索长度和小叶纤维方向。 可以基于用户反馈和/或与患者的图像进行比较来调整特征。 可以从模型中模拟治疗对瓣膜闭合的影响。 例如,对患者特异性模型模拟二尖瓣夹持干预。 阀门根据夹子位置变形。 然后模拟瓣膜闭合以预测治疗在二尖瓣反流方面的效果。