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1. 发明授权

US07844317B2 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：US07844317B2
公开(公告)日：2010-11-30
申请号：US10723728
申请日：2003-11-26
申请人： Prathyusha K. Salla , Gopal B. Avinash , Jason A. Polzin
发明人： Prathyusha K. Salla , Gopal B. Avinash , Jason A. Polzin
IPC分类号： 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

US07020868B2 Graphic application development system for a medical imaging system 失效
公开(公告)号：US07020868B2
公开(公告)日：2006-03-28
申请号：US09839055
申请日：2001-04-20
申请人： Josef P. Debbins , Kristine L. Gould , Paul E. Licato , Jason A. Polzin , Deepa Thomas , Mark T. Radick , Giora Sat
发明人： Josef P. Debbins , Kristine L. Gould , Paul E. Licato , Jason A. Polzin , Deepa Thomas , Mark T. Radick , Giora Sat
IPC分类号： G06F9/44
CPC分类号： G06F8/34 , G06F19/00 , 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 graphically linked together and saved as an application program.

3. 发明授权

US6166545A MRI reconstruction using partial echo and partial NEX data acquisitions 失效
标题翻译：使用部分回波和部分NEX数据采集进行MRI重建
公开(公告)号：US6166545A
公开(公告)日：2000-12-26
申请号：US219129
申请日：1998-12-22
申请人： Jason A. Polzin , Matthew A. Bernstein , Thomas K. F. Foo
发明人： Jason A. Polzin , Matthew A. Bernstein , Thomas K. F. Foo
IPC分类号： G01R33/561 , G01V3/00
CPC分类号： G01R33/561
摘要： A system and method is disclosed to combine both a fractional echo (k.sub.x) and a fractional NEX (k.sub.y) to reduce acquisition times and echo times in MR imaging. The method uses both zero-filling and homodyne reconstruction to construct concurrent fractional NEX and fractional echo data in a single image while minimizing any blurring effects. The system includes acquiring partial MRI data in the k.sub.x direction and acquiring partial MRI data in the k.sub.y direction. Once a partial echo and a partial NEX are acquired, the missing data is first zero-filled in the k.sub.x direction and Fourier transformed to acquire a full x direction data set. Next, the data is synthesized in the k.sub.y direction using a homodyne reconstruction technique to acquire a full data set in the k.sub.y direction. The full x,y data set can then be used to reconstruct an MR image with reduced acquisition and echo times. In order to minimize the effects of blurring in the resulting MR image, it is preferable to acquire at least an 80% fractional echo and a 60% fractional NEX. The system can be extended to any number of desirable dimensions.
摘要翻译：公开了将分数回波（kx）和分数NEX（ky）组合以减少MR成像中的采集时间和回波时间的系统和方法。该方法使用零填充和零差重建来构建单个图像中的并发分数NEX和分数回波数据，同时最小化任何模糊效果。该系统包括以kx方向获取部分MRI数据并且获取ky方向上的部分MRI数据。一旦获得了部分回波和部分NEX，则丢失的数据首先在kx方向上零填充，并进行傅里叶变换以获取全x方向数据集。接下来，使用零差重建技术以ky方向合成数据，以获取ky方向上的完整数据集。然后可以使用完整的x，y数据集来重建具有减少的采集和回波时间的MR图像。为了最小化所得MR图像中模糊的影响，优选获得至少80％的分数回波和60％的分数NEX。该系统可以扩展到任何数量的所需尺寸。

4. 发明授权

US5408180A Measurement of flow using a complex difference method of magnetic resonance imaging 失效
标题翻译：使用磁共振成像的复差法进行流量测量
公开(公告)号：US5408180A
公开(公告)日：1995-04-18
申请号：US107110
申请日：1993-08-13
申请人： Charles A. Mistretta , Jason A. Polzin , Marc T. Alley
发明人： Charles A. Mistretta , Jason A. Polzin , Marc T. Alley
IPC分类号： A61B5/055 , G01F1/716 , G01N24/00 , G01R33/563 , G01V3/00
CPC分类号： G01R33/56308 , G01F1/716 , G01R33/56316
摘要： NMR image data is acquired with velocity encoding gradients applied and both a phase difference image array and a complex difference image array are produced. A flow image is produced from the complex difference image array after it is corrected for spin saturation effects and calibrated using information derived from the phase difference image array. Total blood flow through vessels can be measured from the flow image.
摘要翻译：利用应用速度编码梯度获得NMR图像数据，并且产生相位差图像阵列和复差分图像阵列。在对自旋饱和效应进行校正之后，从复差分图像阵列产生流动图像，并使用从相位差图像阵列导出的信息进行校准。可以从流动图像中测量通过血管的总血流量。

5. 发明申请

US20080164875A1 EXCLUSION OF COMPROMISED PET DATA DURING SIMULTANEOUS PET-MR ACQUISITION 有权
标题翻译：同时PET-MR获取期间排除PET数据
公开(公告)号：US20080164875A1
公开(公告)日：2008-07-10
申请号：US11621622
申请日：2007-01-10
申请人： Robert H. Haworth , Steven G. Ross , Charles W. Stearns , Jason A. Polzin , Alexander Ganin
发明人： Robert H. Haworth , Steven G. Ross , Charles W. Stearns , Jason A. Polzin , Alexander Ganin
IPC分类号： G01T1/161 , G01R33/48
CPC分类号： G01R33/481 , G01R33/28 , G01T1/1603
摘要： A system and method for simultaneously acquiring PET and MR data from a subject of interest with a hybrid PET-MR scanner includes monitoring transmission times of RF and gradient coils of the MR equipment and blanking segments of the PET data stream accordingly. By excluding PET data acquired during active MR transmissions, the remaining PET data used for image reconstruction will provide improved PET image quality.
摘要翻译：利用混合PET-MR扫描仪同时从感兴趣的对象采集PET和MR数据的系统和方法包括相应地监测MR设备的RF设备和梯形线圈的传输时间以及PET数据流的消隐段。通过排除在有源MR传输期间获取的PET数据，用于图像重建的剩余PET数据将提供改进的PET图像质量。

6. 发明授权

US07292032B1 Method and system of enhanced phase suppression for phase-contrast MR imaging 有权
标题翻译：相位对比MR成像增强相位抑制的方法和系统
公开(公告)号：US07292032B1
公开(公告)日：2007-11-06
申请号：US10711603
申请日：2004-09-28
申请人： Jason A. Polzin
发明人： Jason A. Polzin
IPC分类号： G01V3/00
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。

7. 发明授权

US07064547B1 Method and apparatus of M/r imaging with coil calibration data acquisition 失效
标题翻译：用线圈校准数据采集M / r成像的方法和装置
公开(公告)号：US07064547B1
公开(公告)日：2006-06-20
申请号：US10710133
申请日：2004-06-21
申请人： Kevin F. King , Elisabeth Angelos , Jason A. Polzin
发明人： Kevin F. King , Elisabeth Angelos , Jason A. Polzin
IPC分类号： G01V3/00
CPC分类号： G01R33/5611
摘要： A system and method for MR imaging with coil sensitivity or calibration data acquisition for reducing wrapping or aliasing artifacts is disclosed. Low resolution MR data representative of coil sensitivity of a coil arrangement within an FOV is acquired prior to application of an imaging data acquisition scan and is used to reduce wrapping or aliasing artifacts in a reconstructed image.
摘要翻译：公开了一种用于减少包装或混叠伪像的线圈灵敏度或校准数据采集的MR成像系统和方法。在施加成像数据采集扫描之前获取表示FOV内的线圈装置的线圈灵敏度的低分辨率MR数据，并用于减少重建图像中的包裹或混叠伪影。

8. 发明授权

US06707300B2 Gradient non-linearity compensation in moving table MRI 有权
公开(公告)号：US06707300B2
公开(公告)日：2004-03-16
申请号：US10147701
申请日：2002-05-17
申请人： Jason A. Polzin , Stephen J. Riederer , David G. Kruger
发明人： Jason A. Polzin , Stephen J. Riederer , David G. Kruger
IPC分类号： G01V300
CPC分类号： G01R33/56375 , G01R33/56518
摘要： The present invention includes a method and apparatus to correct for gradient field distortions. The invention is particularly applicable in moving table imaging where a single extended image is desirable. The invention includes acquiring MR data in motion in the presence of gradient non-linearities, transforming the MR data acquired into the image domain, and then applying a warping correction function to the transformed MR data. The warp-corrected MR data is then corrected for motion induced during the MR acquisition. The data may be acquired point-by-point, line-by-line, or another sub-portion of the entire MR data acquired, and processed to minimize the amount of motion correction needed. Based on table velocity or acquisition sequence applied, the data is partitioned based on a common motion correction factor, and after correcting for motion, the data is accumulated to build up a final image.

9. 发明授权

US07755355B2 Method and system of enhanced phase suppression for phase-contrast MR imaging 有权
标题翻译：相位对比MR成像增强相位抑制的方法和系统
公开(公告)号：US07755355B2
公开(公告)日：2010-07-13
申请号：US11933520
申请日：2007-11-01
申请人： Jason A. Polzin
发明人： Jason A. Polzin
IPC分类号： G01V3/00
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。

10. 发明申请

US20100031443A1 PATIENT TRANSPORT APPARATUS WITH INTEGRATED SUBSYSTEMS FOR USE IN MAGNETIC RESONANCE IMAGING 有权
标题翻译：具有用于磁共振成像的综合子系统的患者运输装置
公开(公告)号：US20100031443A1
公开(公告)日：2010-02-11
申请号：US12188251
申请日：2008-08-08
申请人： Emil Markov Georgiev , Jason A. Polzin , Ryan W. Rindy , Mark J. Stefka , Robert Meurer
发明人： Emil Markov Georgiev , Jason A. Polzin , Ryan W. Rindy , Mark J. Stefka , Robert Meurer
IPC分类号： A61G13/02 , A61B5/055
CPC分类号： A61B5/0555 , A61G13/06 , A61G13/107 , A61G2210/50 , Y10T29/49826
摘要： A patient transport apparatus having a table configured to support a patient, a base attached to the table, a docking system attached to the base, the docking system configured to couple to a mating docking system of an MR imaging system, and a plurality of bays formed in the base, with each bay configured to receive a patient care module therein. The patient transport apparatus further includes a control system configured to be electrically coupled to each patient care module received within the plurality of bays and configured to centrally control each patient care module.
摘要翻译：一种患者输送装置，具有被配置为支撑患者的台，附接到桌子的基座，连接到基座的对接系统，配置成耦合到MR成像系统的配合对接系统的对接系统和多个间隔形成在基座中，每个隔间配置成在其中接收病人护理模块。患者输送装置还包括控制系统，其被配置为电耦合到在多个间隔区内接收的每个病人护理模块，并配置成集中控制每个病人护理模块。

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