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1. 发明申请

US20050113671A1 Method and system for estimating three-dimensional respiratory motion 有权
标题翻译：估计三维呼吸运动的方法和系统
公开(公告)号：US20050113671A1
公开(公告)日：2005-05-26
申请号：US10723728
申请日：2003-11-26
申请人： Prathyusha Salla , Gopal Avinash , Jason Polzin
发明人： Prathyusha Salla , Gopal Avinash , Jason Polzin
IPC分类号： A61B5/055 , A61B6/00 , G01R33/28 , G01R33/563 , A61B5/04 , A61B5/05
CPC分类号： A61B6/5217 , A61B5/0037 , A61B5/055 , A61B5/113 , A61B5/721 , A61B5/7289 , A61B5/7292 , A61B6/503 , A61B6/527 , A61B6/541 , G01R33/28 , G01R33/563
摘要： One or more techniques are provided for measuring the motion of an organ in three dimensions. As provided by the technique, the motion of the organ along each dimension may be determined by a suitable methodology. Where sensor-based motion measurements are suitable, one or more sensors may be placed on a patient to measure internal motion of the organ of interest along one or more perpendicular axes. Where image-based techniques are suitable, the motion of the internal organ along a perpendicular axis may determined using pre-acquisition image data or acquisition image data when suitable. Concurrent motion vectors for all three dimensions may be obtained from the motion data acquired for the perpendicular axes by the disparate methodologies. The concurrent motion vectors may be combined to describe the three-dimensional motion of the organ over time. Validation of the motion data may be performed for each of the one-dimensional motion data sets using motion data acquired by image-based methods, or other image-based methods, for a respective axis.
摘要翻译：提供了一种或多种用于测量器官在三维中的运动的技术。如该技术所提供的，器官沿着每个维度的运动可以通过合适的方法来确定。在基于传感器的运动测量是合适的情况下，可以将一个或多个传感器放置在患者身上以测量沿着一个或多个垂直轴的感兴趣器官的内部运动。在基于图像的技术是合适的情况下，内部器官沿着垂直轴的运动可以在适当时使用预采集图像数据或采集图像数据来确定。可以通过不同的方法从垂直轴获取的运动数据中获得所有三维的并行运动矢量。可以组合并行运动矢量以描述器官随时间的三维运动。运动数据的验证可使用针对相应轴的基于图像的方法或其他基于图像的方法获取的运动数据来针对每个一维运动数据集执行。

2. 发明授权

US06201985B1 Segmented k-space method for three-dimensional MR imaging 有权
标题翻译：用于三维MR成像的分段k空间法
公开(公告)号：US06201985B1
公开(公告)日：2001-03-13
申请号：US09134501
申请日：1998-08-14
申请人： Jason Polzin , Jie F. Shen
发明人： Jason Polzin , Jie F. Shen
IPC分类号： A61B5055
CPC分类号： G01R33/5673 , G01R33/4822
摘要： A method is provided for 3-D MR imaging of structure such as a cardiac region of a subject, which is disposed to cyclical motion. The method comprises detecting commencement of each of a succession of motion cycles, and acquiring a set of MR views of the region during each motion cycle. Each view is at a known radial distance from the center of a two-dimensional k-space, and each set includes a view of lowest spatial frequency, which is located proximate to the k-space center. The order in which the views of respective sets are acquired is selected so that the lowest frequency views of respective sets are each acquired at the same specified time, following commencement of their respectively corresponding motion cycles. The views of each set collectively define a segment in the k-space, respective segments being placed in an interleaved spiral or elliptical arrangement with respect to one another.
摘要翻译：提供了一种用于诸如受试者的心脏区域的结构的3-D MR成像的方法，其被设置为循环运动。该方法包括检测一连串运动周期中的每一个的开始，以及在每个运动周期期间获取该区域的一组MR视图。每个视图距离二维k空间的中心已知的径向距离，并且每个视图包括位于k空间中心附近的最低空间频率的视图。选择获取各组的视图的顺序，使得在其各自对应的运动周期开始之后，在相同的指定时间各自获取各组的最低频率视图。每个集合的视图共同地定义了k空间中的段，相应的段相对于彼此以交错的螺旋或椭圆形排列。

3. 发明申请

US20060013458A1 Application development system for a medical imaging system 审中-公开
标题翻译：医学影像系统应用开发系统
公开(公告)号：US20060013458A1
公开(公告)日：2006-01-19
申请号：US11232495
申请日：2005-09-22
申请人： Josef Debbins , Kristine Gould , Paul Licato , Jason Polzin , Deepa Thomas
发明人： Josef Debbins , Kristine Gould , Paul Licato , Jason Polzin , Deepa Thomas
IPC分类号： G06K9/00
CPC分类号： G06F8/34 , G06F19/321 , G16H40/63 , G16H50/50
摘要： A workstation is programmed to operate as an application development system for a medical imaging system. Objects programmed in an object-oriented language are selected from a component library using a visual component assembler which enables them to be dragged from a framework area on a display to a workspace area. Properties of selected components may be edited, and the resulting collection of components may be saved as an application program.
摘要翻译：工作站被编程为用作医学成像系统的应用开发系统。使用可视组件汇编程序从组件库中选择以面向对象语言编程的对象，使其能够从显示器上的框架区域拖动到工作区域。可以编辑所选组件的属性，并将所得到的组件集合保存为应用程序。

4. 发明申请

US20080054900A1 METHOD AND SYSTEM OF ENHANCED PHASE SUPPRESSION FOR PHASE-CONTRAST MR IMAGING 有权
标题翻译：用于相位对比MR成像的增强相位抑制方法与系统
公开(公告)号：US20080054900A1
公开(公告)日：2008-03-06
申请号：US11933520
申请日：2007-11-01
申请人： Jason Polzin
发明人： Jason Polzin
IPC分类号： G01R33/565 , A61B5/05
CPC分类号： G01R33/56308 , G01R33/56316 , G01R33/56518
摘要： An automated image processing technique is disclosed that evaluates pixels of a phase-difference image to determine those pixels corresponding to inflowing phase data and background phase data. Phase-difference images are generated from a first acquisition and a second acquisition. Non-zero spatially varying background phase from the phase-difference images that are due to eddy currents induced by flow encoding gradients used to generate the phase-difference images is determined. This non-zero spatially varying background phase is removed from the phase-difference images to determine phase associated with flowing spins and phase associated with stationary spins.
摘要翻译：公开了一种自动图像处理技术，其评估相位差图像的像素，以确定与流入相位数据和背景相位数据相对应的那些像素。从第一次采集和第二次采集生成相位差图像。确定由于由用于产生相位差图像的流编码梯度引起的涡流引起的相位差图像的非零空间变化背景相位。从相位差图像中去除非零空间变化的背景相位，以确定与静止自旋相关的流动自旋和相位相关的相位。

5. 发明申请

US20060036161A1 SPATIAL ENCODING MR DATA OF A MOVING SUBJECT USING A HIGHER-ORDER GRADIENT 有权
标题翻译：使用高阶梯级的移动物体的空间编码MR数据
公开(公告)号：US20060036161A1
公开(公告)日：2006-02-16
申请号：US11163024
申请日：2005-10-03
申请人： Richard Hinks , Kevin King , Jason Polzin
发明人： Richard Hinks , Kevin King , Jason Polzin
IPC分类号： A61B5/05
CPC分类号： G01R33/56375 , G01R33/385
摘要： The present invention includes a technique for use with magnetic resonance imaging that includes the application of a non-linear, higher-order gradient field in the presence of a moving object to be scanned. MR data is acquired as the object moves through the non-linear gradient field. Resulting images are contiguous and do not require the patching together of data in either k-space or image space and result in an image with expanded FOV in a longitudinal direction of the moving object.
摘要翻译：本发明包括一种用于磁共振成像的技术，其包括在存在待扫描的移动物体的情况下应用非线性，高阶梯度场。随着对象移动通过非线性梯度域，获取MR数据。所得到的图像是连续的，并且不需要在k空间或图像空间中将数据进行修补，并导致在移动物体的纵向方向上具有扩展的FOV的图像。

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