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公开(公告)号：US08358822B2
公开(公告)日：2013-01-22
申请号：US12393236
申请日：2009-02-26
申请人： Ying Sun , Jens Gühring , Peter Speier , Michaela Schmidt , Jordin D. Green , Christine H. Lorenz , Marie-Pierre Jolly
发明人： Ying Sun , Jens Gühring , Peter Speier , Michaela Schmidt , Jordin D. Green , Christine H. Lorenz , Marie-Pierre Jolly
IPC分类号： G06K9/00
CPC分类号： A61B5/055
摘要： A method for automatically determining a field of view for performing a subsequent medical imaging study includes acquiring one or more preliminary images. A body mask is generated by thresholding the preliminary images and identifying a largest connected component. A boundary mask is obtained from the boundary of the generated body mask. A rectangular bounding box is fit to the obtained boundary mask. The rectangular bounding box is used as a field of view for performing a subsequent medical imaging study.
摘要翻译： 用于自动确定用于执行后续医学成像研究的视野的方法包括获取一个或多个预备图像。 通过对初步图像进行阈值处理并识别最大的连接分量来生成身体掩模。 从生成的身体掩模的边界获得边界掩模。 矩形边框适合所获得的边界掩模。 矩形边界盒用作进行后续医学成像研究的视野。
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2.发明授权Apparatus and method for remotely controlling in real time measurement parameters of a magnetic resonance (MR) scanner 有权用于远程控制磁共振（MR）扫描仪的实时测量参数的装置和方法公开(公告)号：US08094909B2
公开(公告)日：2012-01-10
申请号：US12207605
申请日：2008-09-10
CPC分类号： G01R33/54 , G01R33/543 , G01R33/546
摘要： Apparatus for remotely controlling parameters of an image scanning apparatus includes a software interface for translating commands from an external application for providing scanner control commands to a scanner control machine for control of the parameters; and the software interface includes syntax software for translating the commands from the external application into a given syntax for providing the scanner control commands.
摘要翻译： 用于远程控制图像扫描装置参数的装置包括用于从外部应用程序转换命令的软件接口，用于向扫描仪控制机器提供扫描仪控制命令以控制参数; 并且软件接口包括用于将来自外部应用的命令翻译成用于提供扫描器控制命令的给定语法的语法软件。
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3.发明授权Method and apparatus for pre-processing scans by combining enhancement and denoising as a preparation for segmenting the same 有权通过组合增强和去噪作为分割扫描的准备来预处理扫描的方法和装置公开(公告)号：US07903850B2
公开(公告)日：2011-03-08
申请号：US11488802
申请日：2006-07-18
申请人： Matthias Rasch , Allen Keel , Christine H Lorenz
发明人： Matthias Rasch , Allen Keel , Christine H Lorenz
IPC分类号： G06K9/00
CPC分类号： G06T5/004
摘要： A computer-implemented method for pre-processing image data of a three-dimensional volume includes providing the image data of a vessel, applying a super-sampling filter to the image data to generate super-sampled image data having an increased resolution as compared to the image data, applying an unsharp masking filter to the super-sampled image data for increasing contrast of an edge of the vessel, applying a de-noising filer for removing noise surrounding the edge after applying the unsharp masking filter, and storing the image data after applying the de-noising filter thereto.
摘要翻译： 用于预处理三维体积图像数据的计算机实现方法包括提供容器的图像数据，对图像数据应用超采样滤波器以产生具有增加的分辨率的超采样图像数据，与 将所述图像数据应用于所述超采样图像数据，以增加所述容器的边缘的对比度;对所述图像数据应用所述图像数据之后，应用去噪滤光器以除去所述边缘周围的噪声;以及存储所述图像数据 在其上应用去噪滤波器之后。
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公开(公告)号：US5987348A
公开(公告)日：1999-11-16
申请号：US898830
申请日：1997-07-23
IPC分类号： A61B5/0402 , A61B5/0456 , A61B5/055 , G01R33/567
CPC分类号： G01R33/5673 , A61B5/0456
摘要： A method of imaging a portion of a body placed in a static magnetic field by means of magnetic resonance (MR) includes the measurement of ECG data of the body in the form of a vector cardiogram, and determination of an acquisition period from the ECG data, including directional information in the vector cardiogram, in order to synchronize measurement of MR signals to a cyclic movement of the body.
摘要翻译： 通过磁共振（MR）对放置在静态磁场中的身体的一部分进行成像的方法包括以矢量心电图的形式测量身体的ECG数据，以及从ECG数据确定采集周期 ，包括矢量心电图中的方向信息，以便将MR信号的测量与身体的循环运动同步。
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公开(公告)号：US08712115B2
公开(公告)日：2014-04-29
申请号：US11392457
申请日：2006-03-29
CPC分类号： A61B6/5223 , A61B6/5235 , G06F19/00 , G06F19/321 , G06K9/00234
摘要： In a method of real-time 3-D visualization and navigation for interventional procedures a position is determined at which data will be acquired, and data is acquired at the position. Features are extracted from the acquired data. A model described by the extracted features is built or updated, wherein updating the model includes calculating at least one acquisition parameter of a set of acquisition parameters. 3-D scenes showing the interior or exterior of one or more organs are displayed using the model or data extracted from the model. A region for updating is determined.
摘要翻译： 在介入程序的实时3-D可视化和导航的方法中，确定将获取哪个数据的位置，并在该位置获取数据。 从获取的数据中提取特征。 构建或更新由提取的特征描述的模型，其中更新模型包括计算一组采集参数中的至少一个采集参数。 使用从模型中提取的模型或数据显示显示一个或多个器官的内部或外部的3-D场景。 确定用于更新的区域。
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6.发明申请SMALL TISSUE PROPERTY CHANGE DETECTION IN MAGNETIC RESONANCE GUIDED INTERVENTION 有权磁共振引导干预中的小组织特性变化检测公开(公告)号：US20130137965A1
公开(公告)日：2013-05-30
申请号：US13680314
申请日：2012-11-19
CPC分类号： A61B5/055 , A61B5/0044
摘要： Small tissue property change detection is provided for magnetic resonance (MR) guided intervention. T1 changes from before and after treatment are compared. The comparison identifies locations of possible change. The comparison is performed for different times, one before and one after a zero-crossing of a signal intensity time curve. Due to the characteristics of the T1 mapping, common locations from the different times will have reversed contrast. Clustering and this reversal are used to distinguish the treatment region from noise.
摘要翻译： 提供小组织特性变化检测用于磁共振（MR）指导干预。 比较治疗前后T1变化。 比较确定可能发生变化的位置。 对于不同的时间进行比较，一个在信号强度时间曲线过零之前和之后。 由于T1映射的特点，来自不同时间的常见位置将具有相反的对比度。 聚类和反转用于区分治疗区域和噪声。
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公开(公告)号：US20090290776A1
公开(公告)日：2009-11-26
申请号：US12393236
申请日：2009-02-26
申请人： Ying Sun , Jens Guhring , Peter Speier , Michaela Schmidt , Jordin D. Green , Christine H. Lorenz , Marie-Pierre Jolly
发明人： Ying Sun , Jens Guhring , Peter Speier , Michaela Schmidt , Jordin D. Green , Christine H. Lorenz , Marie-Pierre Jolly
IPC分类号： G06K9/00
CPC分类号： A61B5/055
摘要： A method for automatically determining a field of view for performing a subsequent medical imaging study includes acquiring one or more preliminary images. A body mask is generated by thresholding the preliminary images and identifying a largest connected component. A boundary mask is obtained from the boundary of the generated body mask. A rectangular bounding box is fit to the obtained boundary mask. The rectangular bounding box is used as a field of view for performing a subsequent medical imaging study.
摘要翻译： 用于自动确定用于执行后续医学成像研究的视野的方法包括获取一个或多个预备图像。 通过对初步图像进行阈值处理并识别最大的连接分量来生成身体掩模。 从生成的身体掩模的边界获得边界掩模。 矩形边框适合所获得的边界掩模。 矩形边界盒用作进行后续医学成像研究的视野。
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公开(公告)号：US07560926B2
公开(公告)日：2009-07-14
申请号：US12238587
申请日：2008-09-26
申请人： Glenn A. Meredith , Christine H. Lorenz , Li Pan
发明人： Glenn A. Meredith , Christine H. Lorenz , Li Pan
IPC分类号： G01V3/00
CPC分类号： G01R33/56341
摘要： A method for selecting the b-values for diffusion weighted magnetic resonance scans. The method includes: identifying a single reference slice within a volume of interest (VOI); progressively changing b-values over a plurality of scans of the reference slice wherein each one of the scans has a different b-value to obtain a plurality of diffusion weighted images; calculating ADC maps for combinations of b-values from the obtained plurality of diffusion weighted images; evaluating the calculated ADC maps; selecting from the evaluation optimal b-values; and using the selected b-values for subsequent scans.
摘要翻译： 用于选择扩散加权磁共振扫描的b值的方法。 该方法包括：识别感兴趣体积（VOI）内的单个参考切片; 在参考片的多个扫描中逐渐改变b值，其中每个扫描具有不同的b值以获得多个扩散加权图像; 计算来自所获得的多个扩散加权图像的b值的组合的ADC图; 评估计算的ADC图; 从评估最优b值中选择; 并使用所选择的b值进行后续扫描。
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公开(公告)号：US20090096448A1
公开(公告)日：2009-04-16
申请号：US12238587
申请日：2008-09-26
申请人： Glenn A. Meredith , Christine H. Lorenz , Li Pan
发明人： Glenn A. Meredith , Christine H. Lorenz , Li Pan
IPC分类号： G01R33/54
CPC分类号： G01R33/56341
摘要： A method for selecting the b-values for diffusion weighted magnetic resonance scans. The method includes: identifying a single reference slice within a volume of interest (VOI); progressively changing b-values over a plurality of scans of the reference slice wherein each one of the scans has a different b-value to obtain a plurality of diffusion weighted images; calculating ADC maps for combinations of b-values from the obtained plurality of diffusion weighted images; evaluating the calculated ADC maps; selecting from the evaluation optimal b-values; and using the selected b-values for subsequent scans.
摘要翻译： 用于选择扩散加权磁共振扫描的b值的方法。 该方法包括：识别感兴趣体积（VOI）内的单个参考切片; 在参考片的多个扫描中逐渐改变b值，其中每个扫描具有不同的b值以获得多个扩散加权图像; 计算来自所获得的多个扩散加权图像的b值的组合的ADC图; 评估计算的ADC图; 从评估最优b值中选择; 并使用所选择的b值进行后续扫描。
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公开(公告)号：US20080275351A1
公开(公告)日：2008-11-06
申请号：US11934253
申请日：2007-11-02
IPC分类号： A61B5/02
CPC分类号： A61B5/0285
摘要： A method for measuring pulse wave velocity through an artery. The method includes: obtaining an image of the artery; generating from the image a model of the artery; selecting two reference points along the artery, such two reference points being separated a predetermined distance, D; observing a change in the model at a first one of the two reference points and a corresponding change in the model at a second one of the two reference points along with a time difference T between the observed changes; and estimating the pulse wave velocity, PWV, in accordance with PWV=D/T.
摘要翻译： 一种通过动脉测量脉搏波速度的方法。 该方法包括：获得动脉的图像; 从图像中产生动脉的模型; 沿着动脉选择两个参考点，这两个参考点被隔开预定的距离D; 在两个参考点中的第一个参考点上观察模型的变化以及在两个参考点中的第二个参考点上的模型的相应变化以及观察到的变化之间的时间差T. 并根据PWV = D / T估计脉搏波速度PWV。
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